Programmable switch
Protection cutting apparatus provided with an arc breaking scree
Protective gas cap for electric power apparatuses
Protective switch device and operating mechanism therefor
Protective switch device and operating mechanism therefor
Protracted-blast electric circuit-breaker for alternating curren
Puffer circuit breaker
Puffer circuit-breaker with two concentric interrupting chambers
Puffer interrupter switch
Puffer interrupter with arc energy assist
Puffer interrupter with main and auxiliary pistons and common cy
Puffer interrupter with piston bypass channel
Puffer interrupter with two-piece interrupter contact
Puffer piston circuit breaker
Puffer piston gas blast circuit interrupter with insulating nozz
Puffer type circuit breaker
Puffer type circuit interrupter
Puffer type current interrupter
Puffer type electrical circuit breaker having a high dielectric
Puffer type gas circuit