Non-snap acting rocker switch
Non-sticking magnet armature
Non-sticking obturator for direct current relays
Non-venting condenser for an expulsion fuse
Non-venting cutout mounted fuse
Non-weldable contact for a fail-safe relay
Normal open low voltage vacuum shorting switch
Normally closed pressure-actuated switch
Nozzle and contact arrangement for puffer type interrupter
Nozzle for a puffer-type circuit breaker
Nozzle-type compressed-gas circuit-interrupter having...
Nutating snap action switch mechanism