Installation and Removal Instructions for Series NRX Drawout Cassette Interphase Barriers
Instruction Leaflet IL01301048E | Effective May 2011 | Series NRX
Instructions Apply To:
Series NRX, Type RF Frame IEC, IZMX40
Warnings
▲ WARNING
- ONLY QUALIFIED ELECTRICAL PERSONNEL SHOULD BE PERMITTED TO WORK ON THE EQUIPMENT.
- ALWAYS DE-ENERGIZE PRIMARY AND SECONDARY CIRCUITS IF A CIRCUIT BREAKER CANNOT 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 CANNOT 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: Drawout Cassette (Rear View)
Description: A rear view of a drawout cassette showing dove tail shaped mounting slots for interphase barriers and primary terminal pads.
Figure 2: Step 1
Description: Illustration showing the first step of barrier installation, sliding the barrier into the mounting slots.
Figure 3: Step 2
Description: Illustration showing the second step of barrier installation, continuing to slide the barrier into the slots.
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 backplane. Three barriers would be required for a four-pole breaker. Refer to Figure 1 for an additional reference.
Step 3: Once the barriers are installed, they will feel securely mounted to the touch and appear as shown.
Figure 4: Step 3
Description: Illustration showing the interphase barriers fully installed in the drawout cassette.
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.
Sale of the product shown in this literature is subject to the terms and conditions outlined in appropriate Eaton selling policies or other contractual agreement 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 Information
Eaton Corporation
Electrical Group
1000 Cherrington Parkway
Moon Township, PA 15108
United States
877-ETN-CARE (877-386-2273)
© 2011 Eaton Corporation. All Rights Reserved.
Printed in USA
Publication No. IL01301048EH01
May 2011
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