EATON IL01301041E NRX Series Pushbutton Cover Kit Installation

Installation/removal instructions for Series NRX pushbutton cover kit

WARNING

1. ONLY QUALIFIED ELECTRICAL PERSONNEL SHOULD BE PERMITTED TO WORK ON THE EQUIPMENT.
2. ALWAYS DE-ENERGIZE PRIMARY AND SECONDARY CIRCUITS IF A CIRCUIT BREAKER CANNOT BE REMOVED TO A SAFE WORK LOCATION.
3. DRAWOUT CIRCUIT BREAKERS SHOULD BE LEVERED (RACKED) OUT TO THE DISCONNECT POSITION.
4. 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.

Instructions apply to:
Series NRXT, Type NF Frame ANSI, ULT 1066, UL 489 / IEC IZMX16, IZM91

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.

General information

A padlockable cover is designed to limit access to both the ON and OFF pushbuttons simultaneously, or individual pushbuttons as required. This is accomplished through the use of individual padlockable doors that close over the pushbuttons. The padlock provision will accommodate up to three padlocks with shackle diameters of 3/16-inch up to 5/16-inch (5-8 mm). A small hole is also provided to accommodate a wire seal.
Padlockable covers are available in seven different configurations:

1. Plastic base and doors

2. Plastic base and metal doors
   Metal base and metal doors

3. Metal base and plastic doors

4. Metal base and metal doors with close push button blocker (safe-off) a

5. Plastic base and plastic emergency access doors b

6. Metal base and plastic emergency access doors b

Note : Not all configurations are shown in this document.

1. Configuration 5 will lock the breaker in a safe-off state when the pushbutton cover is closed, i. e., the breaker main contacts cannot be closed.
2. Configurations 6 and 7 are offered to allow button access through the door holes while preventing accidental tripping/closing. All access to the ON pushbutton can be prevented by adding the blockout plate to the pushbutton cover.

Kit parts identification

Refer to Figure 1 for visual identification of the parts listed below:

• (A) Base (1)
• (B) Doors (2) installed in base
• (C) M3 x 0.5 mm 6 mm long mounting screw (2)
• (D) M2.5 x 4 mm self-tapping screw (2)
• (E) M3 x 0.5 mm, 8 mm long mounting screw (2), configuration 6 only
• (F) Blockout plate (1), configurations 6 and 7 only

Required tools

• Phillips head screwdriver #0 or #1

Tools only required for breakers with two mounting holes (see Step 1):

• 49 (0.073 in or 1.85 mm) drill bit

• Manual drill bit holder

Installation of pushbutton cover

Proceed with the following 11 steps:

Step 1
Examine the front of the breaker. If the breaker has two mounting holes as shown in Figure 2, proceed with Step 2. If the breaker has four mounting holes as shown in Figure 3, skip Steps 2, 3, 4, and 5 and proceed directly to Step 6.

Step 2
Install the lower mounting screw (C) into breaker faceplate 3–4 turns. If installing blockout plate (F) with plastic base (A), use longer mounting screws (E) in place of mounting screws (C).

Step 3
Orient the optional blockout plate (F) as shown (if required); slide onto the mounting screw (C or E) installed in Step 2 and hold in place. Loosen the lower mounting screw (C or E) as necessary to slide the base (A) with installed doors (B) in the open position onto the mounting screw (C or E) installed in Step 2. To simplify the door opening, slide the doors all the way up to unlock them. Then slide the doors all the way down so tabs on the doors slide into the groove space on base for the full open position.
Insert the second mounting screw (C or E) through the other mounting hole in the base and into the mounting hole in the faceplate. Torque both mounting screws to 6.0 lb-in (0.68 N·m).

Step 4
Once the pushbutton cover is mounted on the faceplate with the two screws from Step 3, it will be used as a template to hand drill two additional pilot holes. Using a manual drill bit holder and a #49 (0.073 in or 1.85 mm) drill bit, drill two additional mounting holes in the faceplate through the holes in the pushbutton cover as indicated.

Step 5
Insert the two mounting screws (D) through the indicated holes in the pushbutton cover and into the two pilot holes indicated in the faceplate. Torque both mounting screws to 8 ozf-in (0.06 N·m). Refer to Figure 6 for reference purposes. Once this step is completed, skip to Step 9.
Step 6
Install the lower mounting screw (C) into breaker faceplate
3–4 turns. If installing blockout plate (F) with plastic base (A), use longer mounting screws (E) in place of mounting screws (C).

Step 7
Orient the optional blockout plate (F) as shown (if required); slide onto the mounting screw (C or E) installed in Step 2 and hold in place. Loosen the lower mounting screw (C or E) as necessary to slide the base (A) with installed doors (B) in the open position onto the mounting screw (C or E) installed in Step 6. To simplify the door opening, slide the doors all the way up to unlock them. Then slide the doors all the way down so tabs on the doors slide into the groove space on base for the full open position.
Insert the second mounting screw (C or E) through the other mounting hole in the base and into the mounting hole in the faceplate. Torque both mounting screws (C or E) to 6.0 lb-in (0.68 N·m).

Step 8
Insert the two mounting screws (D) through the indicated holes in the pushbutton cover and into the mounting holes in the faceplate. Torque both mounting screws to 8 ozf-in (0.06 N·m). Refer to the Figure 8 for reference purposes.
Step 9
Once the pushbutton cover assembly is mounted on the breaker faceplate, the doors or individual doors are ready for use.

Step 10
Both doors or individual doors can be closed and padlocked to prevent access to pushbuttons. In addition, a wire seal can also be used on the doors as required. The doors must be all the way down so the door tabs are in the groove space on the base for all padlock and wire seal holes to match. As mentioned on page 2, configuration 5, please be aware that if you are using a pushbutton cover with CLOSE pushbutton blocking capabilities, as soon as you close the metal cover, the breaker will open.

Step 11
Up to three individual padlocks can be used to prevent the doors from being opened by unauthorized individuals. Keep in mind that a padlock or padlocks must be removed to open any locked door.

Disclaimer of warranties and limitation of liability

The information, recommendations, descriptions, and safety notations in this document are based on Eaton’s 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
1000 Eaton Boulevard
Cleveland, OH 44122
United States
Eaton.com
© 2015 Eaton
All Rights Reserved
Printed in USA
Publication No. IL01301041E / Z17057 Part Number IL01301041E-H05 September 2015

Eaton is a registered trademark.
All other trademarks are property of their respective owners.

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>