Multifactor adaptive auto-reclosing of high voltage...

Multiple pole arc-fault circuit breaker using single test...

Multiple static trip circuit breaker coordination

Multiple-pole circuit breaker with shared current sensor for...

Multipole ground fault circuit interrupter with trip level adjus

Neon power supply with improved ground fault protection circuit

Neutral line circuit interrupter

Neutral switch test mechanism for a circuit interrupter

Non-defeatable safety mechanical actuators for appliances

Open circuit detector

Operational amplifier circuit and arc fault circuit...

Optical zero-phase current and zero phase voltage sensing arrang

Over-power safety device for motor driven system

Over-power safety device for motor driven system

Overcurrent and ground fault responsive trip unit for circuit br

Overcurrent protection for circuit interrupting devices

Overcurrent tripping unit for a circuit breaker

Overload circuit interrupter capable of electrical tripping...

Overvoltage protection device for the protection of a power tran

People protecting ground fault circuit breaker utilizing wavefor