External Wiring Of The Trip Unit; Wiring Table; Auxiliary Power - Eaton Power Xpert Release PXR 10 Manual

The following networks are supported:
network module name
ETHERNET (Modbus TCP) PXR-ECAM – MTCP
PROFIBUS PXR-PCAM
Legacy CAM modules
Modbus-RTU MCAM
INCOM ICAM
Please consult the respective instruction leaflet for details.

5 External wiring of the trip unit

The PXR family has a rich set of options for integrating the trip unit into a larger system.
Wires exit the breaker at the rear through a trough on both the left and right side. The
wiring functionality and color coding is identical throughout the family and frames.

5.1 Wiring table

Wire colors and function are consistent across all PXRs in the Power Defense family. The
styles and options ordered determine which of the following wires are provided.
feature short name
AUX +24V
Aux power
AUX 0V
ZIN
ZSI ZOUT
ZCOM
N1
Neutral sensor
N2
Voltage sensor NV
ALM1
ALM2
Alarm relay(s)
ALM3
ALMC
MODBA
MODBB
Modbus
MODBG
ARMSIN
Maintenance mode
ARMSC
CMM1 (TX+)
CMM2 (TX-)
Communication
CMM3 (GND)
adapter (CAM) link
CMM4 (RX+)
CMMG (RX-)

5.2 Auxiliary power

Providing auxiliary power to the PXR trip unit will provide full functionality even when the
circuit breaker is open or when the circuit breaker is under very light load such that the self-
powering current transformer cannot provide sufficient energy to fully power the trip unit.
The power requirements are: 24 VDC +/- 10%, 1.0 A. The Eaton PSG family of power
supplies with 24 V output are recommended. One supply can feed multiple PXR trip units if
desired.
PXR tRiP units foR PoweR Defense molDeD case ciRcuit bReakeRs MN012007EN June 2018 www.eaton.com
instruction leaflet
IL0131132EN
IL120009EN
IL0131091EN
IL01301033E
color notes
Orange
24 VDC 0.5 A 20 VA is required. Eaton PSG family
recommended.
Orange / black
Yellow / black
These connect to other ZSI enabled breakers in the
Yellow / red system. Maximum length of 75 meters (250 feet) using
AWG # 22 wire.
Yellow
Grey
Connect to the external neutral current sensor.
White
Connect to the neutral sensor module and then the
White / grey
neutral bus.
Black / white
Normally open contacts, close when the associated
Black / red
alarm is active. Contacts rated to 240 VAC, 1 Amp.
Black / violet
See Section 5.3: General purpose relay mapping
Black
Green / black Modbus RTU, max of 99 nodes, length 1,200 meters
(4,000 ft.). Recommended cable: twisted-pair foil
Green / red
shield w/ drain wire, 120 ohms impedance. Rated for
the use (typical 75C and 300 V NEC CM, or Belden Data
Green
Tray series 3074F for 600 V NEC TC).
Brown External dry contact. This is a low-voltage signal, use
a high quality gold contact and keep wire length under
Brown / white
3 meters (15 feet).
Violet / white
Violet / red
Connection to the selected CAM module. Refer to
Violet / green
CAM ILs for wiring details.
Violet / yellow
Violet
5 External wiring of the trip unit
wiring harness
Field wired
Field wired
IL019001EN
IL019001EN
15