MULTI-POLE ELECTRICAL WIRING DEVICES WITH WIRE TERMINATION ASSEMBLIES

Abstract

Multi-pole or multi-phase electrical wiring devices that incorporate clamp-type wire termination assemblies are described. The electrical wiring devices include multi-pole motor switches. The electrical wiring devices include a plurality of wire termination assemblies. Each wire termination assembly includes a wire terminal and an activating member.

Claims

1. A multi-pole electrical wiring device comprising: a housing having an interior, at least one wire receiving opening and at least one activating member opening, wherein at least a portion of the interior is hollow; at least one wire termination assembly positioned in the hollow portion of the interior of the housing such that the at least one wire termination assembly is accessible from the at least one wire receiving opening; at least one activating member extending at least partially through the at least one activating member opening, the activating member being interactive with the at least one wire termination assembly such that movement of the activating member in a first direction to a first position causes the at least one wire termination assembly to automatically move to a closed position clamping a wire inserted into the wire receiving opening and positioned in the at least one wire termination assembly, and such that movement of the activating member in a second direction to a second position causes the at least one wire termination assembly to move to an open position releasing the wire within the at least one wire termination assembly.

2. The electrical wiring device according to claim 1, wherein the at least one wire termination assembly includes a wire press member used when clamping the wire positioned in the at least one wire termination assembly.

3. The electrical wiring device according to claim 1, wherein the at least one wire termination assembly includes a biasing member.

4. The electrical wiring device according to claim 3, wherein the biasing member comprises a spring.

5. The electrical wiring device according to claim 1, wherein the at least one activating member remains in the first position or the second position until manually moved.

6. The electrical wiring device according to claim 1, wherein the movement of the activating member in the second direction is opposite the movement of the activating member in the first direction.

7. The electrical wiring device according to claim 1, wherein the movement of the activating member in the first direction and the second direction is linear motion.

8. The electrical wiring device according to claim 1, wherein the movement of the activating member in the first direction and the second direction is one of linear motion, rotational motion, torque motion, pivotable motion and twist motion.

9. The electrical wiring device according to claim 1, wherein movement of the activating member in the first direction is outward relative to the housing, and wherein movement of the activating member in the second direction is inward relative to the housing.

10. The electrical wiring device according to claim 1, wherein when in the closed position the at least one wire termination assembly can clamp the wire with a force that is substantially perpendicular to a longitudinal axis of the wire.

11. A multi-pole electrical wiring device comprising: a housing having an interior, a plurality of wire receiving openings and a plurality of activating member openings, wherein at least a portion of the interior is hollow, wherein each of the plurality of wire receiving openings provides access from an exterior of the housing to the hollow portion of the interior of the housing, and wherein each of the plurality of activating member openings provides access from the exterior of the housing to the hollow portion of the interior of the housing; and a plurality of line side wire termination assemblies positioned in the hollow portion of the interior of the housing such that one of the plurality of line side wire termination assemblies is accessible from one of the plurality of wire receiving openings and one of the plurality of activating member openings; wherein each of the plurality of line side wire termination assemblies includes: a wire terminal including a clamp brace connected to a clamping member, the damping member being movable between a closed position where a wire can be clamped between the clamping member and the clamp brace, and an open position where the wire can be inserted through the one of the plurality of wire receiving openings in the housing and between the clamping member and the clamp brace; and an activating member extending at least partially through the one of the plurality of activating member openings in the housing, the activating member being interactive with the clamping member such that movement of the activating member in a first direction causes the activating member to apply a mechanical load to the clamping member causing the clamping member to move from the closed position to the open position, and movement of the activating member in a second direction removes the mechanical load from the clamping member so that the clamping member moves from the open position to the closed position; and a plurality of load side wire termination assemblies positioned in the hollow portion of the interior of the housing such that one of the plurality of load side wire termination assemblies is accessible from one of the plurality of wire receiving openings and one of the plurality of activating member openings; wherein each of the plurality of the contact assemblies includes: a wire terminal including a clamp brace connected to a clamping member, the clamping member being movable between a closed position where a wire can be clamped between the clamping member and the damp brace, and an open position where the wire can be inserted through the one of the plurality of wire receiving openings in the housing and between the clamping member and the clamp brace; and an activating member extending at least partially through the one of the plurality of activating member openings in the housing, the activating member being interactive with the clamping member such that movement of the activating member in a first direction causes the activating member to apply a mechanical load to the clamping member causing the clamping member to move from the closed position to the open position, and movement of the activating member in a second direction removes the mechanical load from the clamping member so that the clamping member moves from the open position to the closed position.

12. The electrical wiring device according to claim 11, wherein the clamping member for the line side wire termination assemblies and the load side wire termination assemblies includes a wire press member such that the wire can be clamped between the wire press member and the clamp brace.

13. The electrical wiring device according to claim 11, wherein the clamping member for the line side wire termination assemblies and the load side wire termination assemblies includes a biasing member.

14. The electrical wiring device according to claim 11, wherein the activating member for the line side wire termination assemblies and the load side wire termination assemblies remains in the first position or the second position until manually moved.

15. The electrical wiring device according to claim 11, wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the second direction is opposite the movement of the activating member in the first direction.

16. The electrical wiring device according to claim 11, wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction and the second direction is parallel to the clamp brace.

17. The electrical wiring device according to claim 11, wherein the movement of the activating member in the first direction and the second direction is linear motion.

18. The electrical wiring device according to claim 11, wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction and the second direction is one of linear motion, rotational motion, torque motion, pivotable motion and twist motion.

19. The electrical wiring device according to claim 11, wherein movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first and second directions is relative to the clamping member.

20. The electrical wiring device according to claim 11, wherein movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction is outward relative to the housing and wherein movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the second direction is inward relative to the housing.

21. The electrical wiring device according to claim 11, wherein when in the closed position the clamping member for the line side wire termination assemblies and the load side wire termination assemblies can clamp the wire with a force that is substantially perpendicular to a longitudinal axis of the wire.

22. A multi-pole electrical wiring device comprising: a housing having an interior, a plurality of wire receiving openings and a plurality of activating member openings, wherein at least a portion of the interior is hollow, wherein each of the plurality of wire receiving openings provides access from an exterior of the housing to the hollow portion of the interior of the housing, and wherein each of the plurality of activating member openings provides access from the exterior of the housing to the hollow portion of the interior of the housing; and a plurality of line side wire termination assemblies positioned in the hollow portion of the interior of the housing such that one of the plurality of line side wire termination assemblies is accessible from one of the plurality of wire receiving openings and one of the plurality of activating member openings; wherein each of the plurality of line side wire termination assemblies includes: a wire terminal including a damp brace connected to a clamping member, the clamping member being movable between a closed position where a wire can be clamped between the clamping member and the damp brace, and an open position where the wire can be inserted through the one of the plurality of wire receiving openings in the housing and between the clamping member and the clamp brace; and an activating member extending at least partially through the one of the plurality of activating member openings in the housing, the activating member being interactive with the clamping member such that movement of the activating member in a first direction causes the activating member to move the clamping member from the closed position to the open position, and movement of the activating member in a second direction permits the clamping member to automatically move from the open position to the closed position; and wherein each of the plurality of load side wire termination assemblies includes: a wire terminal including a clamp brace connected to a clamping member, the clamping member being movable between a closed position where a wire can be clamped between the clamping member and the clamp brace, and an open position where the wire can be inserted through the one of the plurality of wire receiving openings in the housing and between the clamping member and the clamp brace; and an activating member extending at least partially through the one of the plurality of activating member openings in the housing, the activating member being interactive with the clamping member such that movement of the activating member in a first direction causes the activating member to move the clamping member from the closed position to the open position, and movement of the activating member in a second direction permits the clamping member to automatically move from the open position to the closed position.

23. The electrical wiring device according to claim 22, wherein the clamping member for the line side wire termination assemblies and the load side wire termination assemblies includes a wire press member such that the wire can be clamped between the wire press member and the clamp brace.

24. The electrical wiring device according to claim 22, wherein the clamping member for the line side wire termination assemblies and the load side wire termination assemblies includes a biasing member.

25. The electrical wiring device according to claim 22, wherein the activating member for the line side wire termination assemblies and the load side wire termination assemblies remains in the first position or the second position until manually moved.

26. The electrical wiring device according to claim 22, wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the second direction is opposite the movement of the activating member in the first direction.

27. The electrical wiring device according to claim 22, wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction and the second direction is parallel to the clamp brace.

28. The electrical wiring device according to claim 22, wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction and the second direction is linear motion.

29. The electrical wiring device according to claim 22, wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction and the second direction is one of linear motion, rotational motion, torque motion, pivotable motion and twist motion.

30. The electrical wiring device according to claim 22, wherein movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first and second directions is relative to the clamping member.

31. The electrical wiring device according to claim 22, wherein movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction is outward relative to the housing and wherein movement of the activating member in the second direction is inward relative to the housing.

32. The electrical wiring device according to claim 22, wherein when in the closed position the clamping member for the line side wire termination assemblies and the load side wire termination assemblies can clamp the wire with a force that is substantially perpendicular to a longitudinal axis of the wire.

33. A multi-pole electrical wiring device comprising: a housing having a plurality of wire receiving openings and a plurality of activating member openings, wherein each of the plurality of wire receiving openings provides access from an exterior of the housing to an interior of the housing, and wherein each of the plurality of activating member openings provides access from the exterior of the housing to the interior of the housing; and a plurality of line side wire termination assemblies positioned in the interior of the housing such that one of the plurality of line side wire termination assemblies is accessible from one of the plurality of wire receiving openings and one of the plurality of activating member openings; wherein each of the plurality of the line side wire termination assemblies includes: a wire terminal including a clamp brace connected to a clamping member, the clamping member being movable between a closed position where a wire can be clamped between the clamping member and the clamp brace, and an open position where the wire can be inserted between the damping member and the clamp brace; and an activating member extending at least partially through the one of the plurality of activating member openings in the housing, the activating member being interactive with the clamping member such that movement of the activating member in a first direction from a first position to a second position causes the activating member to move the clamping member from the closed position to the open position, and movement of the activating member in a second direction permits the clamping member to automatically move from the open position to the closed position, wherein the activating member remains in the first position or the second position until manually moved; and wherein each of the plurality of the load side wire termination assemblies includes: a wire terminal including a clamp brace connected to a clamping member, the clamping member being movable between a closed position where a wire can be clamped between the clamping member and the clamp brace, and an open position where the wire can be inserted between the clamping member and the clamp brace; and an activating member extending at least partially through the one of the plurality of activating member openings in the housing, the activating member being interactive with the clamping member such that movement of the activating member in a first direction from a first position to a second position causes the activating member to move the clamping member from the closed position to the open position, and movement of the activating member in a second direction permits the clamping member to automatically move from the open position to the closed position, wherein the activating member remains in the first position or the second position until manually moved.

34. The electrical wiring device according to claim 33, wherein the clamping member for the line side wire termination assemblies and the load side wire termination assemblies includes a wire press member such that the wire can be clamped between the wire press member and the clamp brace.

35. The electrical wiring device according to claim 33, wherein the clamping member for the line side wire termination assemblies and the load side wire termination assemblies includes a biasing member.

36. The electrical wiring device according to claim 33, wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the second direction is opposite the movement of the activating member in the first direction.

37. The electrical wiring device according to claim 33, wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction and the second direction is parallel to the clamp brace.

38. The electrical wiring device according to claim 33, wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction and the second direction is linear motion.

39. The electrical wiring device according to claim 33, wherein the movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction and the second direction is one of linear motion, rotational motion, torque motion, pivotable motion and twist motion.

40. The electrical wiring device according to claim 33, wherein when in the closed position the clamping member for the line side wire termination assemblies and the load side wire termination assemblies can clamp the wire with a force that is substantially perpendicular to a longitudinal axis of the wire.

41. The electrical wiring device according to claim 33, wherein movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first and second directions is relative to the clamping member.

42. The electrical wiring device according to claim 33, wherein movement of the activating member for the line side wire termination assemblies and the load side wire termination assemblies in the first direction is outward relative to the housing and wherein movement of the activating member in the second direction is inward relative to the housing.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0009] A more complete appreciation of the present disclosure and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:

[0010] FIG. 1 is a top perspective view of an exemplary embodiment of a multi-pole electrical wiring device according to the present disclosure, including an exemplary embodiment of a wire termination assemblies according to the present disclosure;

[0011] FIG. 2 is a bottom perspective view of the multi-pole electrical wiring device of FIG. 1;

[0012] FIG. 3 is an exploded bottom perspective view of the multi-pole electrical wiring device of FIG. 2, illustrating the wire termination assemblies within the multi-pole electrical wiring device;

[0013] FIG. 4 is a top plan view of the multi-pole electrical wiring device of FIG. 1, illustrating a plurality of wires staged for insertion into the wire termination assemblies within the multi-pole electrical wiring device;

[0014] FIG. 5 is another top perspective view of the multi-pole electrical wiring device of FIG. 1, illustrating electrical wires connected to the wire termination assemblies within the multi-pole electrical wiring device, and an electrical wire staged for insertion into a wire termination assembly within the multi-pole electrical wiring device;

[0015] FIG. 6 is a bottom perspective view of another exemplary embodiment of a multi-pole electrical wiring device according to the present disclosure, illustrating a main electrical wiring device and an auxiliary electrical wiring device attached to the main electrical wiring device;

[0016] FIG. 7 is an exploded bottom perspective view of the electrical wiring device of FIG. 6, illustrating the auxiliary electrical wiring device separated from the main electrical wiring device;

[0017] FIG. 8 is an enlarged perspective view of a portion of the electrical wiring device of FIG. 3 taken from detail 8, illustrating a wire termination assembly within the electrical wiring device;

[0018] FIG. 9 is a perspective view of the exemplary embodiment of the wire termination assemblies incorporated into the electrical wiring device of FIG. 8;

[0019] FIG. 10 is a side elevation view of two wire termination assemblies within the electrical wiring device of FIG. 3, which when in a closed position form an electrically conductive path between wires connected to the two wire termination assemblies; and

[0020] FIG. 11 is the side elevation view of one of the wire termination assemblies of FIG. 10, illustrating the wire termination assembly in a closed position;

[0021] FIG. 12 is the side elevation view of the wire termination assembly of FIG. 11, illustrating the wire termination assembly in an open and an electrical wire being inserted into the wire termination assembly;

[0022] FIG. 13 is the side elevation view of the wire termination assembly of FIG. 12, illustrating the wire termination assembly in a closed position so that the electrical wire is clamped to the wire termination assembly;

[0023] FIG. 14 is a schematic representation of an exemplary use configuration for the multi-pole electrical wiring device according to the present disclosure, illustrating a three-phase motor and a three-phase motor disconnect switch assembly used to control the operation of the motor;

[0024] FIG. 15 is an exploded perspective view of the motor disconnect switch assembly of FIG. 14, illustrating a multi-pole electrical wiring device within an enclosure;

[0025] FIG. 16 is a schematic representation of another exemplary use configuration for the multi-pole electrical wiring device according to the present disclosure, illustrating a three-phase motor, a three-phase motor drive unit and a multi-pole motor disconnect switch assembly between the motor and the motor drive unit; and

[0026] FIG. 17 is an exploded perspective view of the motor disconnect switch assembly of FIG. 16, illustrating a multi-pole main electrical wiring device and an auxiliary electrical wiring device attached to the main electrical wiring device within an enclosure.

DETAILED DESCRIPTION

[0027] Exemplary embodiments of multi-pole or multi-phase electrical wiring devices that incorporate the wire termination assemblies according to the present disclosure are shown and described. Non-limiting examples of the multi-pole or multi-phase electrical wiring devices contemplated by the present disclosure include motor disconnect switches and load control switches. In some embodiments, the motor disconnect switches may include one or more auxiliary disconnect switches. The wire termination assemblies contemplated by the present disclosure do not use screws or like fasteners to connect electrical wires to the multi-pole or multi-phase electrical wiring devices.

[0028] For ease of description, the multi-pole or multi-phase electrical wiring devices contemplated by the present disclosure may also be referred to herein as the electrical wiring devices in the plural and the electrical wiring device in the singular. For ease of description, the wire termination assemblies may also be referred to herein as the terminations in the plural and the termination in the singular. In addition, the electrical conductors may also be referred to as the wires in the plural and the wire in the singular. Further, the electrical conductors can be any size wire used to conduct electricity, such as 14 AWG wire, 12 AWG wire, 10 AWG wire or 8 AWG wire. Generally, 14 AWG wires are rated for between 15 and 18 amps, 12 AWG wires are rated for between 20 and 25 amps, 10 AWG wires are rated for between 25 and 30 amps, and 8 AWG wires are rated for between 35 and 40 amps.

[0029] In the exemplary embodiment shown in FIGS. 1-5, the electrical wiring device may be a multi-pole switch, e.g., a three-pole switch. In the exemplary embodiment shown in FIGS. 6 and 7, the multi-pole or multi-phase electrical wiring device combines the multi-pole switch of FIGS. 1-5 with an auxiliary switch. For ease of description, the multi-pole switch may also be referred to herein as the switch in the singular and the switches in the plural. The switches and auxiliary switches contemplated may be used to control the operation of multi-phase motors, e.g., three-phase motors.

[0030] Referring to the exemplary embodiment of FIGS. 1-5, the switch 10 has a housing 12 that includes a main body portion 14, a pair of wire attachment portions 16 and 18, a top portion 20 and a base 22. The housing 12 is preferably made of a suitable electrical insulating material, such as plastic, including injection molded thermoplastic, and can be a standalone unit or configured to fit within an electrical enclosure. Within the main body portion 14 of the housing 12 are the components that perform the make and break functions of the switch 10. A non-limiting example of the components within the main body portion that perform the make and break functions of the switch 10 are included in, for example, the HBLDS3RS Disconnect Switch sold by Hubbell Incorporated, which is incorporated herein in its entirety by reference. Generally, the main portion 14 includes a plurality of spring loaded switch contacts 100, seen in FIG. 3, that are accessible when the base 22 is removed from the housing 12. Each switch contact 100 act as a jumper between a corresponding pair of wire termination assemblies 200 positioned at least partially within and accessible from the wire attachment portions 16 and 18. The top portion 20 of the housing 12 includes an on-off control assembly 24. The on-off control assembly 24 is operatively coupled to the switch contacts 100 such that the on-off control assembly 24 moves the switch contacts 100 between make and break positions. Each wire attachment portion 16 and 18 is secured to or integrally formed into the main body portion 14. Each wire attachment portion 16 and 18 includes one or more chambers or cavities 30, seen in FIG. 3, one or more wire receiving openings 32 and one or more activating member openings 34. In the exemplary embodiment shown, each wire attachment portion 16 and 18 includes a plurality of chambers or cavities 30. Each chamber or cavity 30 is configured to receive and position a wire terminal assembly 200 within the wire attachment portion 16 or 18, as shown in FIG. 3. In the exemplary embodiment shown, each wire attachment portion 16 and 18 includes a plurality wire receiving openings 32 and a plurality of activating member openings 34, as shown in FIGS. 1 and 2. In this configuration, one of the plurality of wire receiving openings 32 and one of the plurality of activating member openings 34 provide access from an exterior of the housing 12 to one of the plurality of chambers or cavities 30.

[0031] Referring to the exemplary embodiment of FIGS. 6 and 7, the multi-pole or multi-phase electrical wiring device is a switch 50 that combines the multi-pole switch 10 of FIGS. 1-5 and one or more auxiliary switches 60. In the embodiment shown, there is a single auxiliary switch shown. The auxiliary switch 60 has a housing 62 that includes a pair of wire attachment portions 64 and 66. The housing 62 is preferably made of a suitable electrical insulating material, such as plastic, including injection molded thermoplastic, and can be a standalone unit or configured to fit within an electrical enclosure. Within the housing 62 are the components that perform the make and break functions of the switch 60. A non-limiting example of the components within the housing 62 that perform the make and break functions of the switch 60 are included in, for example, the HBLAC2 Auxiliary Disconnect Switch sold by Hubbell Incorporated, which is incorporated herein in its entirety by reference. Generally, housing 62 includes a spring loaded switch contact (not shown) that is similar to the switch contacts 100, seen in FIG. 3 and described above. The switch contact 100 acts as jumper between a pair of wire termination assemblies 200 positioned at least partially within the wire attachment portions 64 and 66, similar to that shown in FIG. 3. To move the switch contact between the make and break positions, a switch arm lever 70 is operatively coupled to the components within the housing 62 that perform the make and break functions of the switch 60. More specifically, the main body 14 of the housing 12 of the switch 10 has auxiliary trigger arm 36 operatively coupled to the components in the main body 14 of the housing 12 that are the components that perform the make and break functions of the switch 10. The auxiliary trigger arm 36 has a recess 38 that is accessible from an exterior of the main body 14 of the housing 12, as seen in FIG. 7. In addition, the switch arm lever 70 includes a tab 72 extending from the housing 62, as seen in FIG. 7. The tab 72 is configured and dimensioned to be received in the recess 38 of the auxiliary trigger arm 36 so that when the switch 10 is in the make position the auxiliary trigger arm 36 causes the switch arm lever 70 to move the switch contact within the housing 62 to a make position, and when the switch 10 is in the break position, the auxiliary trigger arm 36 causes the switch arm lever 70 to move the switch contact within the housing 62 to a break position.

[0032] Continuing to refer to FIGS. 6 and 7, the housing 62 includes one or more chambers or cavities (not shown)) that are similar to the chambers or cavities 30 described above, Each chamber or cavity is configured to receive and position a wire termination assembly 200 within the housing 62. Each wire attachment portion 64 and 66 is secured to or integrally formed into the housing 62, and includes a wire receiving opening 68 and an activating member opening 69. In this configuration, one of the plurality of wire receiving openings 68 and one of the plurality of activating member openings 69 provide access from an exterior of the housing 62 to one of the plurality of chambers or cavities within the housing 62. Each wire terminal assembly 200 is configured to receive and clamp a wire, such as wire 700 shown in FIG. 5, to the switch 60, and to mate with the switch contact of the switch 60.

[0033] Turning to FIGS. 810, an exemplary embodiment of a wire termination assembly 200 according to the present disclosure is shown. Each wire termination assembly 200 is configured to receive and clamp a wire, such as wire 700 shown in FIG. 5, to the switch 10, and to mate with the switch contacts 100 of the switch 10. In the exemplary embodiment shown, the wire termination assembly 200 includes a wire terminal 210 and an activating member 250. The wire terminal 210 is at least partially made of an electrically conductive material, such as brass, copper or aluminum. In an exemplary embodiment, at least a portion of the wire terminal 210 is made of a resilient material with sufficient stiffness to flex when a mechanical load is applied and return to its normal position when the mechanical load is removed. An example of such a resilient material is spring steel. The wire terminal 210 can be formed as a unitary structure, or the wire terminal 210 can be individual components secured together by, for example, a solder joint, a brazed joint, or a welded joint. The activating member 250 is made of a suitable rigid electrical insulating material, such as a plastic material. An example of a plastic material is injection molded thermoplastic. The activating member 250 may also be referred to herein as a plunger in the singular and plungers in the plural.

[0034] Continuing to refer to FIGS. 8-10, the wire terminal 210 is a mechanical clamping terminal that may use one or more clamping members 214 that can deflect under a mechanical load applied by the plunger 250 and recover to their initial shape when the mechanical load is removed. The energy stored by the one or more clamping members 214 should be sufficient to apply a constant and continuous force to mechanically secure one or more wires, e.g., wires 700 shown in FIGS. 4 and 5, to the wire terminal 210. In the exemplary configuration shown in FIGS. 8-10, the wire terminal 210 includes a clamp brace 212 and a clamping member 214. The clamp brace 212 is a fixed terminal body that may be a substantially planar shaped member or an arcuate shaped member having a first end 212a secured to the clamping member 214. The clamp brace 212 may be secured to the clamping member 214 by, for example, a solder joint, a brazed joint, or a welded joint. The clamp brace 212 has a second end 212b that extends from the wire attachment portion 16 or 18 into the main body portion 14 of the housing 12. Preferably, the second end 212b of the clamp brace 212 is fixed or secured to the main body portion 14 of the housing 12 to limit and possibly prevent flexing of the second end 212b of the clamp brace 212 during operation of the switch 10. In an exemplary embodiment, a portion of the second end 212b of the clamp brace 212 may be positioned within slots on a portion 14a of the main body portion 14. Further, a portion of the second end 212b of the clamp brace 212 may rest on or be secured to a wall 14b within the main body portion 14 of the housing, as shown in FIGS. 9 and 10. By resting the second end 212b of the clamp brace 212 on or securing the second end 212b of the clamp brace 212 to the wall 14b, flexing of the second end 212b of the clamp brace 212 in the direction of arrow A is limited or possibly prevented. The second end 212b of the clamp brace 212 may include an electrical contact pad 220 that is configured and dimensioned to contact an electrical contact pad 102 on the switch contact 100, as shown in FIG. 10.

[0035] Referring to FIGS. 8-13, in the exemplary embodiment shown, the clamping member 214 may be a biasing member. In the exemplary embodiment shown, the biasing member is a spring that includes an end portion 222, a spring member 224 and a clamp arm 226. The end portion 222 can be a substantially planar shaped member or an arcuate shaped member that is configured to mate with the clamp brace 212 and is secured to the clamp brace by, for example, a solder joint, a brazed joint, or a welded joint. The spring member 224 has a lower lobe 224a and an upper lobe 224b. The lower lobe 224a and the upper lobe 224b are configured to interact with the plunger 250 so that movement of the plunger relative to the spring member 224 is translated to the application of a mechanical load on the spring member 224 or the removal of the mechanical load on the spring member. For example, the plunger 250 can be a rectangular shaped member having a notch 252 that is configured to receive the upper lobe 224b of the spring member 224, as shown in FIGS. 8 and 10. The notch 252 has a camming surface 252a that rides along the spring member 224 when the plunger 250 is moved in the direction of arrow B, seen in FIG. 12, applying a mechanical load on the spring member 224 causing the spring member to deflect in the direction of arrow C toward the open position. The clamp arm 226 extends from the upper lobe 224b of the spring member 224 toward the clamp brace 212, as shown. The clamp arm 226 has an elongated opening 228 configured to receive a portion of the clamp brace 212 and at least a portion of a wire press member 230. The wire press member 230 is configured to contact and press a wire, e.g., wire 700 seen in FIGS. 12 and 13, against the clamp brace 212 when the wire is positioned between the clamp brace 212 and the wire press member 230 and the clamping member 214 is in the closed position, as shown in FIG. 13. The clamp arm 226 is movable relative to the clamp brace 212 between the closed position, seen in FIGS. 11 and 13, and the open position, seen in FIG. 12.

[0036] As noted, the wire terminal 210 can connect to electrical conductors of different sizes. For example, if the electrical wiring device, e.g., switch 10, is rated for 20 amps, then the wire terminal 210 should also be configured and rated for at least 20 amps. The wire size, i.e., the bare conductor size, for 20 amps is 12 AWG wire such that the clamp arm 226 should be able to move to an open position where the outer diameter of 12 AWG wire can fit. As another example, if the electrical wiring device is rated for 30 amps, then the wire terminal 210 should also be rated for at least 30 amps. The wire size, i.e., the bare conductor size, for 30 amps is 10 AWG wire such that the clamp arm 226 should be able to move to an open position where the outer diameter of 10 AWG wire can fit. As another example, if the electrical wiring device is rated for 40 amps, then the wire terminal 210 should also be rated for at least 40 amps. The wire size, i.e., the bare conductor size, for 40 amps is 8 AWG wire such that the clamp arm 226 should be able to move to an open position where the outer diameter of 8 AWG wire can fit. As another example, if the blade-type electrical receptacle is rated for 50 amps, then the wire terminal 210 should also be rated for at least 50 amps. The wire size, i.e., the bare conductor size, for 50 amps is 6 AWG wire such that the clamp arm 226 should be able to move to an open position where the outer diameter of 6 AWG wire can fit.

[0037] The spring member 224 is made of a resilient material with sufficient stiffness to flex when the plunger 250 pushes the spring member 224 from the closed position, seen in FIG. 11, to the open position, seen in FIG. 12. As noted, when in the closed position, the spring member 224 applies a force (e.g., a spring force) through the wire press member 230 to a wire 700 inserted between the wire press member 230 and the clamp brace 212, as shown in FIG. 13. As an example, the spring member 224 can be made of metal, such as spring steel. The biasing force (, e.g., spring force) exerted by the spring member 224 clamping a wire between the wire press member 230 and the clamp brace 212 should be sufficient to apply a constant and continuous force on the wire to electrically couple or connect the wire 700 to the wire terminal 210 in various temperatures and environmental conditions. The spring member 224 is configured so that it is normally biased toward the closed position, i.e., in the direction of arrow D which is away from the clamp brace 212, as seen in FIG. 13. In the normal position of the spring member 224 without a conductor inserted into the elongated opening 228, the wire press member 230 of the clamp arm 226 can contact the clamp brace 212, as shown in FIG. 11.

[0038] Referring to FIGS. 11-15, an exemplary embodiment of a use scenario for the switch 10 described herein is shown. In this exemplary embodiment, a 30 amp, three-phase electrical motor 300 is controlled by a disconnect switch assembly 310. The disconnect switch assembly 310 includes an electrical enclosure or electrical box 312 having a main body 314 and a removable cover 316. For ease of description, the electrical enclosure or electrical box 312 may also be referred to herein as the enclosure in the singular and the enclosures in the plural. The enclosure 312 may be a weatherproof or watertight enclosure. A switch 10 is secured in the main body 314 of the enclosure 312. As described herein, the switch 10, seen in FIG. 1, uses wire termination assemblies 200 to terminate electrical conductors or wires within the enclosure 312. To connect wires within the enclosure 312 to the switch 10, an installer, e.g., an electrician, strips the insulation from the end of each wire, as shown in FIG. 12. In the exemplary embodiment shown in FIGS. 14-15, the switch 10 is a three-pole switch that has six wire termination assemblies 200, such that six wires can be connected to the switch 10. The six wires include line side phase 1, phase 2 and phase 3 wires, and load side phase 1, phase 2 and phase 3 wires. However, it is also contemplated that each wire termination assemblies 200 could be configured to electrically connect more than one wire to the wire termination assemblies 200. The plunger 250 for each wire termination assembly 200 extends through the activating member opening 34 in the wire attachment portions 16 or 18 of the switch housing 12. The portion of the plunger 250 extending from the housing 12 are then moved, e.g., pulled, in the direction of arrow B, seen in FIG. 12, which in this case is outward relative to the wire attachment portions 16 or 18 of the housing 12. Moving the plunger 250 in the direction of arrow B causes the camming surface 252a of the notch 252 in the plunger 250 to ride along the spring member 224 applying a mechanical load on the spring member 224. Applying a mechanical load on the spring member 224, causes the spring member 224 to deflect in the direction of arrow C, seen in FIG. 12, from the closed position toward the open position. With the wire terminals 210 in the open position, the electrical wires 700 are then inserted into the appropriate wire receiving openings 32 in the wire attachment portions 16 or 18 of the switch housing 12, seen in FIG. 5. The wire receiving openings 32 also guide the bare end of the wires 700 into the portion of the elongated opening 128 of the clamping member 214 between clamp brace 212 and wire press member 230. When the bare end of each wire 700 is positioned between the clamp brace 212 and the wire press member 230, the respective plunger 250 is then moved, e.g., pushed in the direction of arrow E, seen in FIG. 13, back into the activating member opening 34 in the wire attachment portions 16 or 18. Moving the plungers 250 in the direction of arrow E removes the mechanical load applied by the plunger 250 on the spring member 224 so that the energy stored by the spring member 224 moves the spring member 224 to the closed position with sufficient force to secure or clamp the wire 700 between the clamp brace 212 and the wire press member 230 completing an electrically conductive path between the wire 700 and the wire termination assembly 200. It is noted that when the plunger 250 is moved in the direction of arrow B to a first position, plunger 250 extends out of the wire attachment portion 16 or 18 of the housing 12 a distance that is greater than when the plunger 250 is moved in the direction of arrow E to a second position, as shown in FIG. 5. The second direction may be a direction that is opposite the first direction. In addition, it is noted that when the plunger is moved to the first position or the second position, the plunger 250 may remain in the first position or the second position until the plunger is manually moved to the other position.

[0039] With the wires 700 connected to the switch 10 and the motor 300, when the control knob 318 rotatably attached to the switch cover 316 is rotated from an off position to an on position, the drive rod 320 attached to the control knob 318 rotates the on-off control assembly 24 causing contact pads 102 the switch contact 100 of the switch 10 into engagement with the electrical contact pads 220 on the clamp brace 212 of the wire termination assemblies 200 completing an electrically conductive path from the wires 700 to the motor 300 turning the motor on.

[0040] Referring to FIGS. 11-13, 16 and 17, an exemplary embodiment of a use scenario for the switch 50 described herein is shown. In this exemplary embodiment, a 30 amp, three-phase electrical motor 300 is controlled by a disconnect switch assembly 310 and a motor driver 330. The disconnect switch assembly 310 is the same as described above, except the switch 50 is used instead of switch 10. To connect wires within the enclosure 312 to the switch 50, an installer, e.g., an electrician, strips the insulation from the end of each wire. In the exemplary embodiment shown in FIGS. 16-17, the switch 10 is a three-pole switch that has six wire termination assemblies 200, such that six wires can be connected to the switch 10. The six wires include line side phase 1, phase 2 and phase 3 wires, and load side phase 1, phase 2 and phase 3 wires. In addition, the auxiliary switch 60 is a single pole switch with line and load side control wires.

[0041] The plunger 250 for each wire termination assembly 200 of switch 10 extends through the activating member opening 34 in the wire attachment portions 16 or 18 of the switch housing 12, and the plunger 250 for each wire termination assembly 200 of switch 60 extends through the activating member opening 69 in the wire attachment portions 64 or 66 of the auxiliary switch housing 62. The portion of the plunger 250 extending from the housings 12 and 62 are then moved, e.g., pulled, in the direction of arrow B, seen in FIG. 12. Moving each plunger 250 in the direction of arrow B causes the camming surface 252a of the notch 252 in the plunger 250 to ride along the spring member 224 applying a mechanical load on the spring member 224. Applying a mechanical load on the spring member 224, causes the spring member 224 to deflect in the direction of arrow C, seen in FIG. 12, from the closed position toward the open position. With the wire terminals 210 in the open position, the electrical wires 700 are then inserted into the appropriate wire receiving openings 32 in the wire attachment portions 16 or 18 of the switch housing 12 and the wire receiving openings 68 in the wire attachment portions 64 or 66 of the auxiliary switch housing 62. The wire receiving openings 32 and 68 also guide the bare end of the wires 700 into the portion of the elongated opening 128 of the clamping member 214 between clamp brace 212 and wire press member 230. When the bare end of each wire 700 is positioned between the clamp brace 212 and the wire press member 230, the respective plunger 250 is then moved, e.g., pushed in the direction of arrow E. Moving the plungers 250 in the direction of arrow E removes the mechanical load applied by the plunger 250 on the spring member 224 so that the energy stored by the spring member 224 moves the spring member 224 to the closed position with sufficient force to secure or clamp the wire 700 between the clamp brace 212 and the wire press member 230 completing an electrically conductive path between the wire 700 and the wire termination assembly 200. It is noted that when the plunger 250 is moved in the direction of arrow B to a first position, plunger 250 extends out of the wire attachment portion 16 or 18 of the housing 12 a distance that is greater than when the plunger 250 is moved in the direction of arrow E to a second position, as shown in FIG. 5. The second direction may be a direction that is opposite the first direction. In addition, it is noted that when the plunger is moved to the first position or the second position, the plunger 250 may remain in the first position or the second position until the plunger is manually moved to the other position.

[0042] With the wires 700 connected to the switch 50, the motor driver 330 and the motor 300, when the control knob 318 rotatably attached to the switch cover 316 is rotated from an off position to an on position, the drive rod 320 attached to the control knob 318 rotates the on-off control assembly 24 causing contact pads 102 the switch contact 100 of the switch 50 into engagement with the electrical contact pads 220 on the clamp brace 212 of the wire termination assemblies 200 completing an electrically conductive path from the wires 700 to the motor 300 and providing power to the motor driver 330. The motor driver 330 can then be programmed to turn the motor 300 on and off.

[0043] For the embodiments of FIGS. 14-17, to remove wires from the wire termination assemblies 200, the plungers 250 for each wire termination assembly 200 extending through the activating member opening 34 in the wire attachment portions 16 or 18 of the switch housing 12 and/or activating member opening 69 of the switch housing 62 are moved in the direction of arrow B, seen in FIG. 12. Moving the plungers 250 in the direction of arrow B causes the camming surface 252a of the notch 252 in the plunger 250 to ride along the spring member 224 applying a mechanical load on the spring member 224 causing the spring member to deflect from the closed position to the open position as described above. With the wire terminals 210 in the open position, the electrical wires 700 can be removed from the switch 10 and/or the switch 60.

[0044] The activating member 250 is described herein as moving in the directions of arrows B and E as shown in FIGS. 12 and 13. Movement of the activating member 250 shown in FIGS. 12 and 13 is a linear motion. While the activating member 250 is shown as moving linearly, the present disclosure contemplates other movement of the activating member 250. As non-limiting examples, movement of the activating member 250 can be rotational or torque motion, or movement of the activating member 250 may be pivotable motion, or movement of the activating member 250 can be a twisting motion. An example of rotational movement of the activating member is shown and described in commonly owned U.S. Pat. No. 11,495,895, which is incorporated herein in its entirety by reference. Movement of the activating member 250 may also be referenced relative to the wire terminal 210, or relative to components of the wire terminal 210, or to the housing 12. For example, the activating member 250 can move relative to the clamping member 214 or the clamp brace 212.

[0045] While exemplary embodiments have been chosen to illustrate the invention, it will be understood by those skilled in the art that various changes, modifications, additions, and substitutions are possible, without departing from the scope and spirit of the invention.