The 4-1617758-7 is a Power Relay, DPDT, 28 VDC, 5 A, FCB Series, Panel, Non Latching Mounting Type Chassis Mount Coil Voltage 28VDC Contact Form DPDT (2 Form C) Contact Rating (Current) 5A Switching Voltage 115VAC, 28VDC - Max Coil Type Non Latching Features Sealed - Hermetically Termination Style PC Pin Turn On Voltage (Max) 18 VDC Turn Off Voltage (Min) 1.5 VDC Operate Time 5ms Release Time 5ms Operating Temperature -70°C ~ 125°C