Testing The Breaker And Trip Unit - Eaton Power Xpert PXR Series Manual

6.3 Testing the breaker and trip unit

The test functions require no extra equipment, and provide a battery of testing possibilities
via the USB communication. The PXR trip unit has four built-in test modes available for use.
The built-in test modes are secondary injection, simulated, open breaker, and current sensor
continuity. Secondary injection, and simulated test can be configured to optionally open the
breaker. To perform any of these test procedures, a four-digit password, factory set to 0-0-0-0
is required. The password may be changed by the user.
Primary Injection Test
Current Sensor
Test
Current
Sensor
Power Defense Circuit Breaker
PXR tRiP units foR PoweR Defense molDeD case ciRcuit bReakeRs MN012007EN March 2019 www.eaton.com
6 Power Xpert® Protection Manager - configuration software
Functional Test
Input
LSIG
Circuitry
Protection
Secondary Simulated
Injection
Secondary
Current Circuit
USB (PXPM)
Breaker Open Test
Trip
Actuation
Open
Breaker
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