The SE-105/SE-107 is a combination ground-wire monitor and ground-fault relay for resistance-grounded systems. It continuously monitors the integrity of the ground conductor to protect portable equipment from hazardous voltages caused by ground faults. The SE-105/SE-107 is an excellent choice for trailing cables 5 kV and under in underground mining applications. For higher voltages or long-cable applications, see the SE-134C/SE-135. Unit can be used on a wide variety of trailing cable applications Adjustable trip delay for quick protection and system coordination Prevents false operation Provides reliable ground-check loop verification Ensures ground-check circuit remains safe even in the event of equipment failure Additional coating protects circuit boards against harsh environment Provides flexibility for different applications Eliminates chance of unauthorized change to trip circuit FEATURES Adjustable pickup (0.5, 2.0, 4.0 A) Adjustable time delay (0.1 - 2.0 s) Harmonic filter Zener-characteristic termination assembly Fail-safe ground-check circuit Conformal coating SE-105: selectable UV- or shunt-trip mode SE-107: UV-trip mode only