UNIVERSAL_POWER_CONTROLLER

Published:2009/7/10 5:08:00 Author:May | From:SeekIC

Relay K1 has a low-impedance coil and K2 has a high-impedance coil. When a sensor opens, current is routed through the coil of K1. K1 activates, opens its contacts, and prevents a sensor contact reclosure from affecting the circuit. When K1 contacts open, current to the main relay K2 is limited by the impedance of K1.K2 controls power to a load (air conditioner, furnace blower, etc.).



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