Multiple key with invisible hinge
Multiple vacuum interrupter fluid insulated circuit breaker with
Multiple-function, hand-actuated switch unit, particularly for e
Multipole circuit breaker
Multipole circuit breaker with single-pole units
Multiposition microwave switch with extended operational frequen
Multiposition rotary switch with detent means
Normal open low voltage vacuum shorting switch
Normally closed switch
Nozzle and contact arrangement for puffer type interrupter
Nozzle for a puffer-type circuit breaker
Off locking in-line trigger switch
Offset paddle actuator for push-rod switch
Oil circuit-breaker pump-assembly with improved shunting contact
Oil-insulated switch
On-load tap changer of the type of vacuum switches
Operating device for a contact device for a pre-insertion resist
Operating device for enclosed high voltage circuit breakers
Operating mechanism and position indicator for a circuit interru
Operating mechanism for a circuit-breaker, and a circuit-breaker