Section 1: General Information; Section 2: Installation Of Ethernet Communi- Cations Adapter Module - Eaton NRX Series Installation Instructions Manual

Instruction Leaflet IL01301052E
effective May 2012

Section 1: General information

The Series NRX Ethernet Communications Adapter Module (Figure
1) is an accessory that operates as a communicating device in
conjunction with a compatible Series NRX trip unit/breaker via an
Ethernet network.
The Ethernet Communications Adapter Module (ECAM) provides Web-
enabled monitoring and control of the Series NRX trip unit metering,
logging, alarms, and control functions using a standard web browser. It
also includes alarms; command, event, and data logging; configuration
of setpoint, alarm, and logging parameters; and control functions such
as open/close breaker. Additionally, the Series NRX ECAM provides
data communications to the Eaton Power Xpert Software as an easy
means of centralizing and gathering data for long-term data archival,
analysis, and trending. The Series NRX 520M trip unit supports basic
current monitoring and status reporting. The Series NRX 1150 trip unit
provides expanded functionality associated with current, demand,
voltage, power, energy, breaker health, temperature measurement and
event reporting.
Figure 1. Series NRX Ethernet Communications Adapter Module
(ECAM)
Each Ethernet Communications Adapter Module provides:
• Circuit Breaker Open/Close/Reset Control
• NRX Trip Unit Source/Residual Ground Selection
• Flashing Status LED indicating module has power
• Ethernet Control Enable/Disable selection jumper
• DIN rail mounting (11mm H, 28mmW DIN rail minimum require-
ment)
• Input power for module from 24 Vdc
The ECAM is designed to be installed, operated, and maintained by
adequately trained people. These instructions do not cover all details
or variations of the equipment for its storage, delivery, installation,
checkout, safe operation or maintenance.
If you have any questions or need additional information or
instructions, please contact your local Eaton Sales representative.
2 EATON CORPORATION www.eaton.com
Installation Instructions for Series NRX
Ethernet Communications Adapter
Section 2: Installation of Ethernet Communi-
cations Adapter Module
The following steps outline the installation procedure for a Series NRX
ECAM in a drawout circuit breaker configuration only.
N otee: Many illustrations use the NF Frame circuit breaker for illustrative
purposes only. The RF Frame circuit breaker is handled in a similar fashion.
For fixed mounted circuit breakers, a separate DIN rail mounting
configuration is preferred. Consult Eaton for additional information.
The following tools should be available:
• #T-15 Torx
• Small flat blade screwdriver
For drawout circuit breakers, secondary terminal blocks as well
as the ECAM are DIN rail mounted on the top front portion of the
drawout cassette. The module is designed to install or replace the
four terminal blocks (eight contacts in total) at secondary contacts 19
through 26. Refer to the Series NRX Circuit Breaker Wiring Diagrams in
TD01301014E. For additional information relative to secondary terminal
block installation and/or removal beyond that which is presented in this
section, refer to IL01301037E.
Proceed with the following seven steps:
Step 1e: Using a T-15 Torx, remove the four mounting screws holding
the Terminal Block Alignment Bracket in place.
Figure 2. Step 1
Step 2e: Carefully slide the alignment bracket out from between any
mounted terminal blocks, and put it aside with its mounting hardware
for re-installment after the communications adapter module is
connected to the DIN rail.
Figure 3. Step 2
Module