Eaton Power Xpert Release PXR 20 User Manual

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MN013015EN
POWER XPERT® RELEASE TRIP UNIT FOR MAGNUM PXR CIRCUIT BREAKERS MN013015EN January 2022 www.eaton.com
Contents
1. THE POWER XPERT RELEASE TRIP UNIT .............................1
1.1 System overview ...................................................1
1.2 Catalog numbering and styles .........................................1
1.3 Primary protection features ...........................................2
1.4 Enhanced protection features .........................................3
1.5 Current, voltage, frequency, power and energy data .......................3
2. TRIP UNIT DESCRIPTION ..........................................5
2.1 Status indicator ....................................................5
2.2 Display and menu navigation buttons ...................................5
2.3 Cause-of-Trip indicators ..............................................6
2.4 PXR 20 – Configure using rotary switches ...............................6
2.5 PXR 25 – Configure using the display ...................................7
2.6 Maintenance mode switch ...........................................7
2.7 Reset button ......................................................7
2.8 Tamper proof cover .................................................7
2.9 Test and configuration port ...........................................7
2.10 Battery ..........................................................7
2.11 Breaker continuous current rating .....................................7
2.12 Real-time clock ...................................................7
2.13 Operating temperature .............................................8
2.14 Trip unit, frame, and voltage modules within the trip unit ...................8
2.15 End user license agreement .........................................9
3. PROTECTION FUNCTIONS ........................................10
3.1 Password security .................................................10
3.2 Overload/long delay settings .........................................10
3.3 Short circuit settings ...............................................11
3.4 Instantaneous protection setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.5 High instantaneous (withstand) trip ...................................11
3.6 Ground fault settings ...............................................11
3.7 Enhanced protection settings ........................................13
3.8 Maintenance mode ................................................14
3.9 Zone selective interlocking (ZSI) ......................................15
3.10 Making current release (MCR) ......................................16
4. COMPLEMENTARY FEATURES .....................................17
4.1 Neutral sensors ...................................................17
4.2 Configurable relays ................................................17
4.3 Integrated Modbus RTU ............................................19
4.4 Communications adapter modules (CAMs) .............................19
4.5 Auxiliary control power .............................................20
4.6 Secondary wiring terminals for Magnum PXR ...........................20

Eaton Power Xpert Release PXR 20 Specifications

General

Brand	Eaton
Model	Power Xpert Release PXR 20
Category	Power distribution unit
Language	English