Universal Power Controller

Posted on Dec 21, 2012

Relay K1 has a low-impedance coil and K2 has a high-impedance coil. When a sensor opens, current is routed throu

Universal Power Controller
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gh the coil of Kl. K1 activates, opens its contacts, and prevents a sensor contact reclosure from affecting the circuit. When Kl contacts open, current to the main relay K2 is limited by the impedance of Kl. 2 controls power to a load (air conditioner, furnace blower, etc.).

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