Remotely monitored and controlled transformer
Remotely programmable electronic trip system
Resettable overcurrent-protected direct current power supply
Residential load center with arcing fault protection
Residual current device
Residual current device
Residual current device
Residual current device having voltage dependent and voltage...
Residual current safety switch
Residual differential device equipped with a surveillance...
Resistive superconducting current limiter
Resistive water sensor for hot tub spa heating element
Resistor dropper power supply with surge protection
Ressettable fast current limiter in telecommunications...
Reverse power flow relay
Reverse power relay
Reverse wiring detect in circuit interrupting devices
Rf power amplifier protection
Rf power amplifier system having amplifier protection
Rms sensing apparatus