With an adjustable or fixed time delay to prevent nuisance tripping on start-up or under minor current surges, CS Series of current sensing relays has a torodial sensing element that provides complete isolation between sensed current and the control circuit. The pass through toroid senses between 0.1A and 20A and offers accurate setting of the trip point using an LED fault indicator. An optional 5% trip point hysteresis is available. The switched relay outputs include SPDT or SPDT types with 10A to 20A. Operating voltages are 12 to 24 vdc and 24 to 230 vac, 50/60 Hz. The relays are encapsulated for protection from humidity and harsh environments.