A switching device for an electrical appliance has a housing and an adjustably designed switch therein that operates cyclically. An adjusting device for setting a different cycle behavior of the switch is provided that acts mechanically on the switch. It has a rotary shaft with a varying contour device that has along the circumferential direction a varying contour. An electrothermic tripping device is provided for the switch and has a heating element and two electrical connections thereto. At least one connection has two disconnectable connecting contacts in the current path of the connection. The switching device has a disconnector which acts mechanically on one of the connections of the tripping device in order to disconnect its two connecting contacts. The disconnector can be moved in a disconnecting rotary angle range of the rotary shaft by the contour device, in order to disconnect the connecting contacts in the disconnecting rotary angle range, and otherwise not.

An embodiment of a fuse module has been disclosed. The fuse module includes a housing and a fuse element assembly contained within the housing. The fuse element assembly includes at least one fuse element unit having a plurality of trigger mechanisms and a perforated strip electrically connected to the trigger mechanisms. Increased ampacity ratings in a more compact arrangement provides for fuse modules having increased current protection capability that, in turn, provides for improved disconnect switching capabilities.

An embodiment of a fuse module has been disclosed. The fuse module includes a housing and a fuse element assembly contained within the housing. The fuse element assembly includes at least one fuse element unit having a plurality of trigger mechanisms and a perforated strip electrically connected to the trigger mechanisms. Increased ampacity ratings in a more compact arrangement provides for fuse modules having increased current protection capability that, in turn, provides for improved disconnect switching capabilities.

A fusible disconnect switch devices includes dual sets of switch contacts to connect or disconnect a current path through an overcurrent protection fuse with reduced arcing severity. Faster acting and longer contact path switch mechanisms are described providing satisfactory switching of DC circuits without excessive electrical arcing in a reduced physical package size.

A fusible disconnect switch devices includes dual sets of switch contacts to connect or disconnect a current path through an overcurrent protection fuse with reduced arcing severity. Faster acting and longer contact path switch mechanisms are described providing satisfactory switching of DC circuits without excessive electrical arcing in a reduced physical package size.

A fuse holder for holding a fuse is provided. The fuse holder includes a body, a line side connector supported by the body, and a load side connector supported by the body. The fuse holder also includes a fuse carrier supported by the body. The fuse carrier is adapted for holding the fuse and the fuse carrier is adapted to be removed from the fuse holder. The fuse carrier defines a longitudinal axis thereof. The fuse carrier is separable from the body in a direction along the longitudinal axis of the fuse carrier.

A fuse holder for holding a fuse is provided. The fuse holder includes a body, a line side connector supported by the body, and a load side connector supported by the body. The fuse holder also includes a fuse carrier supported by the body. The fuse carrier is adapted for holding the fuse and the fuse carrier is adapted to be removed from the fuse holder. The fuse carrier defines a longitudinal axis thereof. The fuse carrier is separable from the body in a direction along the longitudinal axis of the fuse carrier.

A compact fusible disconnect switch device includes a magnetic arc deflection assembly including at least a pair of magnets disposed about a switch contact assembly. The magnetic arc deflection assembly facilitates reliable connection and disconnection of DC voltage circuitry well above 125 VDC with reduced arcing intensity and duration. Multiple pairs of magnets may apply magnetic fields in directions opposing one another to deflect electrical arcs in different directions at more than one location in the switch contact assembly to facilitate high voltage DC operation.

A compact fusible disconnect switch device includes a magnetic arc deflection assembly including at least a pair of magnets disposed about a switch contact assembly. The magnetic arc deflection assembly facilitates reliable connection and disconnection of DC voltage circuitry well above 125 VDC with reduced arcing intensity and duration. Multiple pairs of magnets may apply magnetic fields in directions opposing one another to deflect electrical arcs in different directions at more than one location in the switch contact assembly to facilitate high voltage DC operation.

A disconnect switch is disclosed with an integrated thermal breaker that can be disposed between a source of power and a circuit to be protected. The disconnect switch can comprise a housing, a first terminal coupled to a power source and a second terminal coupled to a load. The first terminal and the second terminal can be partially included in the housing. The disconnect switch comprises a bi-metal thermal conductive element made from at least two metal sheets with different thermal expansion coefficients and having a concave shape that engages the first and second terminals. Upon occurrence of an overload condition, heat flowing through the bi-metal thermal conductive element causes the concave shape to retract to a convex shape and disengage the bi-metal thermal conductive element from the first and the second terminals.