General Information - Eaton NRX Serie Montageanleitung

Instruction Leafl et IL01301021E
Effective September 2015

General information

n IMPORTANT
IT IS RECOMMENDED THAT APPROPRIATE INTERPHASE BARRIERS BE
INSTALLED BETWEEN INSIDE AND OUTSIDE PRIMARY TERMINALS
WITH ALL REAR-CONNECTED CONFIGURATIONS ON DRAWOUT
CASSETTES AND FIXED TYPE CIRCUIT BREAKERS TO ENSURE
INSULATION INTEGRITY. THESE INSTRUCTIONS ARE PROVIDED FOR
EATON SUPPLIED INTERPHASE BARRIERS OR INTERPHASE BARRIERS
PURCHASED SEPARATELY FROM EATON.
Eaton supplied interphase barriers are made from a flexible rubber
type material, and when installed, provide the proper insulation
integrity. Drawout cassettes and fixed circuit breakers are designed
for the simple installation of these barriers.
Drawout cassette barriers
Dove tail shaped mounting slots are provided in the primary backpan
of the cassette for mounting Eaton supplied interphase barriers
(Figure 1).
Figure 1. Drawout cassette (rear view)
Proceed with the following four steps:
Steps 1 and 2
To install both supplied rubber type interphase barriers, slide each
barrier in until the dove tail shaped keys on the barrier firmly engage
the two mounting slots at the top and bottom of the cassette's
backpan. Three barriers would be required for a four-pole breaker.
Refer to Figure 1 for an additional reference.
Figure 2. Step 1
2
EATON www.eaton.com
Interphase barrier dove
tail mounting slots
Primary terminal pads
Interphase barrier dove
tail mounting slots
Installation and removal instructions for
Series NRX drawout cassette and
fi xed breaker interphase barriers
Figure 3. Step 2
Step 3
Once the barriers are installed, they will feel securely mounted to
the touch and appear as shown.
Figure 4. Step 3
Step 4
Reverse the procedure to remove the barriers from the cassette.