The 973-12VDC-SL-A-X General Purpose Non Latching 12VDC SPST 15A Relay (277VAC, 110VDC) Max Through Hole RoHS manufactured by NHLC is an inexpensive, reliable and efficient electronic component that can be used to start, stop, and control power flow in low voltage electrical circuits. The relay is a single-pole double-throw switch, which means it has two electrical terminals, one connected to the power supply and one connected to the load. When activated, the switch opens and closes the circuit, allowing electricity to flow when it is switched on and blocking it when it is off. It operates on a range of 12 volts direct current (VDC) and can handle up to a maximum of 15 amps. The maximum voltage allowed is 277 volts alternating current (VAC) and 110 VDC. This relay is through hole mounted to make installation and connection of wires easier. It is RoHS complaint and certified for use in a variety of applications.