The 7D 208/240V 60Hz NEMA3R PLS ENL 21A SPDT Time Switch is a universal, electromechanical time control. It is is a light-duty commercial time switch ideal for 240 VAC single phase applications, such as lighting control, heating, air-conditioning, pumps, motors, fans, agricultural facilities and general electrical circuits. The unit is mounted in a Type 3R outdoor enclosure.