Circuit breaker electronic trip unit explained

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The Electronic Trip Unit is a microprocessor controlled, multi-function over-current protective device for application with low voltage power circuit breakers. The adjustment flexibility provided by the Electronic Trip Units allows users to easily accommodate load changes and other protective requirements while still assuring optimum coordination. • This video briefly describes 10 common elements found on modern most circuit breaker trip devices: • 1. Removable Rating Plug • 2. Protection Curve • 3. Adjustable Protection Setting • 4. Protection Alarm • 5. Trip Reset • 6. Unit Status • 7. Test Kit Connection • 8. Self Test Function • 9. Battery Test • 10. Aux. Power • Primary vs. Secondary Injection Testing for Circuit Breakers. Learn the pro's and con's of each: https://goo.gl/9qAWPi • Linkedin: / testguy • Facebook: / testguynet • twitter: / @testguynet • G+: https://plus.google.com/1108327689058... • YouTube: / testguytv • Pinterest: / testguynet • Eaton Digitrip 510 shown in this example. Consult manufacturers literature for your specific application.

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