Interrupter with chamber pressurized by breakdown of arc...
Interrupteur polyphase a auto-soufflage
Interrupting device
Interrupting device employing continuous hydraulic control
Interrupting device with improved current-limiting arrangement
Interruptor
Interval timing mechanism
Inverted board mounted electromechanical device
Inverted low loss relay structure
Inverter bypass safety switch
Inverter with electromagnetic control and mechanical lock
Isolated phase bus disconnect switch with grounded operating...
Isolating apparatus for electric power lines and methods for...
Isolating circuit breaker
Isolating nozzle for arc blow circuit breaker
Isolating switch
Isolating switch construction and improved mechanism therefor
Isolating switch for a high power electrical distribution...
Isolating switch for ultra high voltages
Isolating switch of a high voltage metalclad installation