Current sensing relay
Current switching device
Current switching device
Current throttle technique
Current-limiter electric switch having a telecontrol suitable fo
Current-limiting circuit breaker adapter
Current-limiting circuit breaker adapter
Current-limiting electric switch exempt from bumps in the openin
Cutoff structure for circuit breaker
Cylindrical, linear, stopless mercury switch and relay
D.C. electromagnetic contactor
Dampening apparatus and circuit interrupter including the same
Damper, electromagnet assembly employing the damper, and relay e
DC relay
DC vacuum relay device
DC vacuum relay device with angular impact break mechanism
Design of membrane actuator based on ferromagnetic shape...
Detachable device for locking a contactor in its "on" position
Device for accelerating and storing charged particles
Device for adjusting the tripping threshold of a multipole circu