EATON IZMX40 Air Circuit Breaker Instruction Manual
- June 6, 2024
- EATON
Table of Contents
IZMX40 Air Circuit Breaker
Instruction Manual
Installation and Removal Instructions for Series NRX Drawout Cassette
Interphase Barriers
Instructions apply to:
Series NRX, Type RF Frame IEC, IZMX40
**WARNING**
- ONLY QUALIFIED ELECTRICAL PERSONNEL SHOULD BE PERMITTED TO WORK ON THE EQUIPMENT.
- ALWAYS DE-ENERGIZE PRIMARY AND SECONDARY CIRCUITS IF A CIRCUIT BREAKER CAN NOT BE REMOVED TO A SAFE WORK LOCATION.
- DRAWOUT CIRCUIT BREAKERS SHOULD BE LEVERED (RACKED) OUT TO THE DISCONNECT POSITION.
- ALL CIRCUIT BREAKERS SHOULD BE SWITCHED TO THE OFF POSITION AND MECHANISM SPRINGS DISCHARGED. FAILURE TO FOLLOW THESE STEPS FOR ALL PROCEDURES DESCRIBED IN THIS INSTRUCTION LEAFLET COULD RESULT IN DEATH, BODILY INJURY, OR PROPERTY DAMAGE.
WARNING
THE INSTRUCTIONS CONTAINED IN THIS IL AND ON PRODUCT LABELS HAVE TO BE
FOLLOWED. OBSERVE THE FIVE SAFETY RULES:
- DISCONNECTING
- ENSURE THAT DEVICES CAN NOT BE ACCIDENTALLY RESTARTED
- VERIFY ISOLATION FROM THE SUPPLY
- EARTHING AND SHORT-CIRCUITING
- COVERING OR PROVIDING BARRIERS TO ADJACENT LIVE PARTS DISCONNECT THE EQUIPMENT FROM THE SUPPLY. USE ONLY AUTHORIZED SPARE PARTS IN THE REPAIR OF THE EQUIPMENT. THE SPECIFIED MAINTENANCE INTERVALS AS WELL AS THE INSTRUCTIONS FOR REPAIR AND EXCHANGE MUST BE STRICTLY ADHERED TO PREVENT INJURY TO PERSONNEL AND DAMAGE TO THE SWITCHBOARD.
Section 1: General information
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.
Eaton 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.
Section 2: Drawout cassette barriers
Dove tail-shaped mounting slots are provided in the primary backplane of the
cassette for mounting Eaton interphase barriers (Figure 1).
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 cassettes
backplane. Three barriers would be required for a four-pole breaker. Refer to
Figure 1 for an additional reference.
EATON CORPORATION www.eaton.com
Step 3: Once the barriers are installed, they will feel securely mounted to
the touch and appear as shown.
Step 4: Reverse the procedure to remove the barriers from the cassette.
Disclaimer of warranties and limitation of liability
The information, recommendations, descriptions, and safety notations in
this document are based on Eaton Corporation’s (“Eaton”) experience and
judgment, and may not cover all contingencies. If further information is
required, an Eaton sales office should be consulted.
The sale of the product shown in this literature is subject to the terms and
conditions outlined in appropriate Eaton selling policies or other contractual
agreements between Eaton and the purchaser.
THERE ARE NO UNDERSTANDINGS, AGREEMENTS, WARRANTIES, EXPRESSED OR IMPLIED,
INCLUDING WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY,
OTHER THAN THOSE SPECIFICALLY SET OUT IN ANY EXISTING CONTRACT BETWEEN THE
PARTIES. ANY SUCH CONTRACT STATES THE ENTIRE OBLIGATION OF EATON. THE CONTENTS
OF THIS DOCUMENT SHALL NOT BECOME PART OF OR MODIFY ANY CONTRACT BETWEEN THE
PARTIES.
In no event will Eaton be responsible to the purchaser or user in contract, in
tort (including negligence), strict liability, or otherwise for any special,
indirect, incidental, or consequential damage or loss whatsoever, including
but not limited to damage or loss of use of equipment, plant or power system,
cost of capital, loss of power, additional expenses in the use of existing
power facilities, or claims against the purchaser or user by its customers
resulting from the use of the information, recommendations, and descriptions
contained herein.
The information contained in this manual is subject to change without notice.
Eaton Corporation
Electrical Group 1000 Cherrington Parkway
Moon Township, PA 15108
United States
877-ETN-CARE (877-386-2273)
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