This compact relay is a SPDT (single pole – dual throw) with a contact rating of up to 10A. Typically these will be used in a special footprint on a circuit board, but they can be made to fit into perfboards with a little creativity or use one of our handy SPDT Relay Breakout PCBs. The coil voltage is 24VDC, so applying ~24V across the coil pins will change the contact position of the relay. The contacts can handle a maximum of 10A and voltages up to 270VAC / 28VDC. These are the exact same relay found on our 2 Channel Relay Breakout (24V).