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CR-4 Generator Interlock Kit

this kit fits brands:

Challenger, Westinghouse

type of circuit breaker panel:

2 handle horizontal throw main breaker offset 7/8" left of center and 7/8" to 1" above two breaker columns

panel spaces used:

2 at the top of the right breaker column

CR-4 Generator Interlock Kit - (price includes 2-3 day USPS Shipping)
$69.00 Add to Cart
National Electrical Code requires a system in place that prevents an emergency generator feeding back into the utility line. This interlock will only allow the generator breaker to be switched on if the main breaker is off. Or the main breaker to be turned on if the generator breaker is off.

You will also need:
  • A generator with a 240 volt outlet
  • A double breaker located at the top of the right breaker column
  • An inlet box and wiring connected to that double breaker
Using this interlock will allow you to power your existing house wiring with your generator (within its wattage limits), including 220v circuits such as a well pump.

Please send me an with any questions