Thermal overload relay, Function: Designed to protect three-phase or single-phase electric motors from prolonged overloads and phase faults. It is typically mounted directly below a compatible contactor (such as LS Electric's GMC-40 model)., Adjustment range: The tripping current is adjustable between .12 Amps (A) and 18 Amps (A), Additional Features: It has a temperature compensated trip mechanism, automatic or manual reset, and auxiliary contacts for signaling (usually 1 NO and 1 NC contact)., Standard: Conforms to industry standards such as IEC 60947-4-1.