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2
PXR Electronic trip unit
01/21 MN012005EN
www.eaton.com
Protection settings .................................................................... 25
Overload release .......................................................................... 25
Overload pre-warning................................................................... 26
Thermal memory.......................................................................... 26
Short-time delayed short-circuit release ...................................... 27
Instantaneous short-circuit release .............................................. 27
Ground-fault settings ................................................................... 27
Instantaneous release (override).................................................. 29
Digital bypass............................................................................... 29
Maintenance mode (ARMS)......................................................... 30
Zone selective interlocking (ZSI) .................................................. 31
Event logging and waveform capture .......................................... 32
Residual-life indicator ................................................................... 35
Communication functions......................................................... 37
Integrated Modbus communication module................................ 37
External communication adapter modules................................... 38
System components.................................................................. 39
External power supply ................................................................. 39
Electromagnetic compatibility...................................................... 39
Real-time clock............................................................................. 40
Power Xpert Protection Manager (PXPM) ................................... 40
Auxiliary wiring terminals......................................................... 41
Interface module.......................................................................... 41
Relay module ............................................................................... 43
Testing the trip unit and the circuit breaker ........................... 47
Testing (remote) of the circuit-breaker via USB/PXPM ................ 48
Testing the ground-fault releases - primary injection ................... 48