An apparatus includes a switch having alternately open and closed conditions, and a shunt trip mechanism configured to detect and respond to an electrical fault condition. The apparatus further includes an operating mechanism including a spring assembly. The operating mechanism is actuatable manually to deflect the spring assembly into a stressed condition, and is actuatable automatically in response to the shunt trip mechanism to shift the switch into the open condition upon return deflection of the spring assembly from the stressed condition. The spring assembly may include springs connected in parallel.

A circuit interrupting device including a loop split interrupter for interrupting a loop split circuit, and a quick whip interrupter for interrupting a charging circuit.

A relay includes an electromagnetic drive unit with a rotatable armature and a yoke. The rotatable armature includes a first magnetic contact region and the yoke includes a second magnetic contact region. The first magnetic contact region is in touch with the second magnetic contact region in a first state of the relay. The relay further includes at least one immovable first electric contact and a moveable contact arm with at least one second electric contact. The first electric contact contacts the second electric contact in the first state. The rotatable armature and the moveable contact arm are positioned together on a shaft and the shaft is embodied as a torsional element.

A circuit interrupting device including a loop split interrupter for interrupting a loop split circuit with a high current and a low voltage and a quick whip interrupter for interrupting a charging circuit with a low current and a high voltage.

A triggering mechanism is for a switching device, in particular for low-voltage devices and systems, medium-voltage devices and systems, and/or high-voltage devices and systems. The triggering mechanism includes a lever, equipped with two rolls for blocking purposes.

Provided is a switch with excellent operability. A switch is provided with a plunger, a lower torsion spring in which a biasing direction changes according to the movement of the plunger. The lower torsion spring biases the plunger in a returning direction when the plunger is in a reference position, and biases the plunger in a direction different from the returning direction when the plunger is in an operation position.

Provided is a switch that can be downsized. A switch is provided with a plunger, and an upper torsion spring configured to bias the plunger in a returning direction. The torsion spring has a first arm that extends to the plunger and abuts against the plunger. The plunger has a hole at a position into which the first arm is inserted. The hole is a through hole extending in a direction that is perpendicular to a direction in which the plunger moves, and is the same as a direction in which the first arm extends when viewed in the direction in which the plunger moves.

A mechanism for controlling a current switching device. The mechanism includes: an arming lever; an arming disc secured to an arming shaft, movable between a first position and a second position; and a loading pawl which can pivot between a position in which the arming lever drives the arming disc via the loading pawl and a position in which the arming lever is free, rotation of the arming lever causing the arming disc to go from the first position to the second position whilst constraining an elastic member. The mechanism further includes: an end stop for retaining the arming disc; a closing lever configured to trigger closing of the current switching device; and an elastic member configured to move the loading pawl from the position in which the arming lever drives the arming disc to the position in which the arming lever is free when the arming disc is retained by the end stop whilst driving the closing lever so as to close the current switching device.

A stored energy assembly is for an electrical switching apparatus. The electrical switching apparatus includes a housing and a mount coupled to the housing. The stored energy assembly includes: a ratchet assembly having: a first ratchet member, a second ratchet member, and a shaft extending through the first ratchet member and the second ratchet member, the shaft being structured to extend through the mount; a stored energy mechanism coupled to the shaft; at least one charging mechanism structured to charge the stored energy mechanism in order to store energy; and a clutch assembly including a link assembly cooperating with the first ratchet member and the second ratchet member in order to transmit energy from the charging mechanism to the stored energy mechanism.

Provided is a switch that can be downsized. A switch is provided with a plunger, and an upper torsion spring configured to bias the plunger in a returning direction. The torsion spring has a first arm that extends to the plunger and abuts against the plunger. The plunger has a hole at a position into which the first arm is inserted. The hole is a through hole extending in a direction that is perpendicular to a direction in which the plunger moves, and is the same as a direction in which the first arm extends when viewed in the direction in which the plunger moves.