A switch is disclosed. In some examples, a switch includes a generally cylindrical housing; one or more sets of contact points enclosed by the housing; an indicator module, such as a multi-color LED illuminator, also enclosed by the housing; and a pushbutton actuator disposed to operate the contact points. The housing includes a display section spanning substantially the entire circumference of the housing such that the indication made by the indicator module is visible from all radial directions. When the pushbutton actuator is pressed, some of the contact points open to cut off power from hazards, while others are reconfigured to change the state of the indicator module to indicate the changed status of the switch. Multiple switches can be interfaced with each other, such as by serial connection, to facilitate multi-switch safety environment. Modular cables can be used to conveniently establish the interface.

A locking/unlocking structure of switch device includes a main body and an operation button. The main body is formed with a first stop section and a second stop section. The main body defines a chamber, in which a reaction drum and a wire connection module are assembled. A first elastic unit is disposed between the reaction drum and the main body for making the reaction drum positioned in an initial assembling position, (where the wire connection module is in a closed-circuit state). The reaction drum is assembled with a restriction unit and a second elastic unit. When the reaction drum moves in response to the motion of the operation button, the second elastic unit will force the restriction unit to move from the first stop section to the second stop section so as to control the wire connection module into an open-circuit state.

An overheating destructive switch, comprising: a first conductive element, a second conductive element, a movable conductive element, an overheating destructive element, an operating component, and a second elastic element. The movable conductive element connects the first conductive element and the second conductive element. A first elastic element and the second elastic element act on an operating element. The first elastic element is compressed and has a first elastic force, and the second elastic element has a second elastic force. The first elastic force is greater than the second elastic force under in a normal state. When the overheating destructive element is destroyed due to overheating, the first elastic force is reduced or lost, such that the second elastic force becomes greater than the first elastic force. The movable conductive element is consequently disconnected from the first conductive element and the second conductive element, thus achieving protection against overheating.

A heat destructive disconnecting switch comprises a first conductive member, a second conductive member, a movable conductive member, an overheating destructive member, an operating component, and a second elastic member. The movable conductive member conducts electricity to the first conductive member and the second conductive member. The overheating destructive member is formed as an integral body on a limiting member, and a first elastic member is compressed to between a contact member and the overheating destructive member, thereby providing the first elastic member with a first elastic force. The second elastic member is provided with a second elastic force. When the overheating destructive member is destructed due to overheating, the first elastic force is smaller than the second elastic force, causing the movable conductive member to disconnect the first conductive member from the second conductive member to achieve a protective effect from overheating.

A heat destructive disconnecting switch, comprises a first conductive member, a second conductive member, a movable conductive member, an overheating destructive member, an operating component, and a second elastic member. The movable conductive member conducts electricity to the first conductive member and the second conductive member. A first elastic member and the second elastic member act on an operating member. The first elastic member is compressed and provided with a first elastic force, and the second elastic member is provided with a second elastic force. When the overheating destructive member is destructed due to overheating, the first elastic force is diminished or vanishes, causing the second elastic force to be larger than the first elastic force. Consequently, the movable conductive member disconnects the current conducting state between the first conductive member and the second conductive member, thereby achieving a protective effect from overheating.

Emergency stop for a linear actuator system, which comprises a housing (13) and an activation button (12) adapted for activating a circuit breaker and where the activation button (12) has a neutral position and an emergency position. The emergency stop further comprises a spring (19) for spring-loading the activation button (12) for retaining the activation button (12) in the neutral position, a latching mechanism adapted for retaining the activation button (12) in the emergency position once it has entered this position, and a release mechanism adapted to unlatch the latching mechanism. The spring-loaded activation button (12) is pivotally connected to the housing (13) and arranged to pivot between the neutral position and the emergency position. The spring-loaded activation button (12) comprises an arm (26,27) having one end attached to the underside (24) of the spring-loaded activation button (12). The housing 13 comprises a wall piece (35,36) adapted for engaging a free end of the arm (26,27). The latching mechanism comprises a protruding part (61,62) on the arm (26,27) and a receiving part (39,40) on the wall piece (35,36), said protruding part (61,62) and said receiving part (39,40) being unlatched when the activation button (12) is in the neutral position and latched when the activation button (12) is in the emergency position. The release mechanism comprises a reactivation button (14,15) movable between a first and second position, said reactivation button (14,15) unlatches the latching mechanism by disengaging the protruding part (61,62) from the receiving part (39,40) when the reactivation button (14,15) is moved from the first position to the second position.

The emergency stop switch 2 performs an operation support of an operation switch, and not only improves operability and safety but also simplifies the structure to enhance reliability. The emergency stop switch (or operation switch unit) 2 with an operation support function includes an emergency stop button (or operation switch) 21 for switching the state of the contact, a reception part (or detection part) 32 for detecting a remote operation of the emergency stop button 21 and an electromagnetic solenoid (or actuating part) 3 that is disposed between the contact and the emergency stop button 21 and that actuates the emergency stop button 21 on the basis of the remote operation received (or detected) by the reception part 32. The emergency stop button 21 is located on one end side of the emergency stop switch 2 and the contact is located on the other end side of the emergency stop switch 2.

A fixing module is for fixing a push button or emergency stop button or rotary actuator of a control and signaling device. In an embodiment, the fixing module is constructed from a top housing part and a bottom housing part, each including a cuboidal structure with a top side, an underside and four side parts connecting the top side to the underside. In at least one embodiment, on the top side of the bottom housing part, a material that extends at least partially in this plane and has a grounding function is formed or an electrically conductive component made of metal with a grounding function is arranged.

A safety switch assembly for use on a movable device. The assembly includes a bracket, an impact surface that is held in position in the bracket, and a switch. The bracket and impact surface are clamped against the movable device. The impact surface is an easily replaceable component.

An emergency stop device including a control button, an actuation assembly which includes an actuation plunger that cooperates with the control button and an actuation spring mounted between the body of the device and the actuation plunger, a trip plunger designed to cooperate with at least one electrical contact unit and one trip spring mounted between the actuation plunger and the trip plunger and arranged to actuate the trip plunger when the control button is actuated from its rest position to its actuated position, a latching member mounted on the trip plunger, an unlocking assembly including an unlocking ring that is arranged to cooperate with the control button to return it from its released actuated position to the rest position, the unlocking assembly including an unlocking spring mounted between the control button and the body, and arranged to actuate the control button towards its rest position.