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Secondary Injection Testing

Field installation of a trip unit requires secondary injection testing with a Full-Function Test Kit. This will ensure that the newly-installed trip unit is functioning properly. The test will require opening and closing the circuit breaker. Follow the procedures outlined in the instruction bulletins shipped with the circuit breaker and the Full-Function Test Kit.

  1. Make sure the circuit breaker is isolated from all upstream and downstream devices.

  2. Perform secondary injection testing as outlined in the instruction bulletin shipped with the test kit. Verify that all applicable trip unit functions are operating properly.

  3. Repeat step 2 with the circuit breaker in the open position.

    NOTE: The test kit states that the circuit breaker should be closed when performing the test. Do not close the circuit breaker for this step.
  4. If any test fails, do not put the circuit breaker into service and contact the local sales office for factory authorization service.

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