Advanced surge suppressor incorporating phone line surge...

Afci which detects and interrupts line side arcing

Aircraft applicable circuit imbalance detection and circuit...

Aircraft applicable ground fault circuit interrupter

Alarm and control system for high voltage capacitor bank

Alarm circuit for indicating failure in redundant power...

Alarm circuit for monitoring the primary winding of a...

Alternating current alternator protector system

Alternating current limiting type semiconductor current...

Alternating-current power delivery system

Amalgam of shielding and shielded energy pathways and other...

Ambient compensation for apparatus controls using electrical...

Ampere second relay

Amplifier malfunction detector

An apparatus and method for identifying a loss of a current...

An apparatus for limiting an electrical current

An electric installation arrangement and method for the...

An electronic trip device comprising a power supply device

An improved digital miltifunction relay

An intrinsically safe universal switching power supply