Current Sensing Relays: Type - Overcurrent or Undercurrent Sensing Relay; Voltage - 240VAC/DC; Trip Setting - Amps - 2 - 500; Contacts - DPDT; Additional Information - Operating Range: 20.4V - 264VAC/DC, 50 / 60 Hz, Operating Temperature: -4 to 122 deg C (-20 to 50 deg F)