The Desco 19333 Power Relay controls power to workbenches, hand tools, and other electronic devices dependent on the status of the Desco Full-Time Continuous Monitor and Dual Operator Continuous Monitor. A single logic input signal controls one high-current SPDT AC relay. This one relay trigger signal switches three AC outlets simultaneously using a single-pole double-throw relay. One outlet is normally on. Two are normally off. A fourth outlet is unswitched. All outlets are protected against surges and overloads