Potential Relay Pick-Up Voltage Setting Adjustability Not Applicable Minimum Pick Up Voltage 139V AC Maximum Pick-Up Voltage 153V AC Maximum Drop Out Voltage 55V AC Coil Voltage 168V AC Overall Height 1 11/16 in Overall Width 2 in Overall Depth 1 13/16 in Compatible with Manufacturer Model Number Not Applicable Contact Form SPST Relay Type Mechanical Potential Relay Maximum Time Setting Not Applicable Minimum Time Setting Not Applicable Voltage Sensing Not Voltage Sensing