Eaton IZM-PXR Operating instructions
- Category
- Car kits
- Type
- Operating instructions
Effective May 2022
Instructional Leaflet IL0131174EN
Breaker operations counter in
IZM low voltage circuit breakers
m 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.
m WARNING
THE INSTRUCTIONS CONTAINED IN THIS IL AND ON
PRODUCT LABELS MUST BE FOLLOWED. OBSERVE THE
FIVE SAFETY RULES.
• DISCONNECTING;
• ENSURE THAT DEVICES CANNOT BE ACCIDENTALLY
RESTARTED;
• VERIFY ISOLATION FROM THE SUPPLY;
• EARTHING AND SHORT-CIRCUITING; AND;
• 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
The operations counter is a mechanical device
used to provide a record of the number of circuit
operations. It can be viewed through the breaker’s
front cover.
ote: N A number of graphics in this instruction leaflet use
the standard frame (IZM32) circuit breaker for illustrative
purposes only. The double frame circuit breaker (IZM63)
is handled in a similar fashion. Some components, such
as the trip unit, are not shown for clarity.
Required tools
• 1/4-inch drive socket
• 10 mm socket
• Phillips head screwdriver (#2 recommended)
• Small chisel
• Small flat file
Kit parts identification
Refer to Figure 1 for visual identification of the
parts listed below.
(A) Lock mounting plate (one)
(B) Counter actuator (one)
(C) Counter (one)
(D) Return spring (one)
(E) M3.5 x 8 self-threading screws (two)
(F) M3 x 6 self-threading screws (three)
Figure 1. Contents of Kit
(A) (B)
(C)
(D) (E)
(F)
2
Breaker operations counter in
IZM low voltage circuit breakers
EATON www.eaton.com
Instructional Leaflet IL0131174EN
Effective May 2022
Section 2: Installation of
breaker operations counter
Proceed with the following steps.
Step 1: Remove the front cover by unscrewing the hex-head captive
bolts (four for three-pole, six for four-pole) that join the cover to the
breaker housing using a 10 mm 1/4-inch drive socket. Then hold the
charge handle down approximately 45 degrees to pull off the cover.
Step 2: Remove the knockout opening for the counter by laying the
front cover face up on a
firm flat surface. Strike sharply at score marks with a chisel or similar
tool. File the hole
opening smooth.
Figure 2. Steps 1 and 2
Step 3: Ensure that the counter angles at 14 degrees above
horizontal in free state, and note the arm orientation to the counter.
Figure 3. Step 3
Bolt
Knockout
14°
Arm Orientation
Close to Counter
14-Degree Angle
Step 4: Install the counter (C) to the mounting bracket (A) using two
M3.5 x 8 screws (E). Torque the screws to 5–8 in-lbs.
Remove and discard the existing bracket (if equipped), and install
the counter and bracket assembly to the mechanism as shown using
the three M3 x 6 screws (F).
Figure 4. Step 4
Step 5: Assemble the counter spring (D) onto counter actuator (B),
and hook the other end to the bottom hole of flag wireform. Align
the counter actuator onto the charge flag actuator. Make sure the
counter arm sits into the slot of the counter actuator.
Figure 5. Step 3
M3 x 8 Counter
Mounting Screws
Through Mounting
Plate and Into
Counter
M3 x 6
Screw
Bottom Hole
Arm Sits in Slot
Charge Flag Actuator
Mount spring from
lower hole on flag
wireform to
counter actuator
3
Instructional Leaflet IL0131174EN
Effective May 2022
Breaker operations counter in
IZM low voltage circuit breakers
EATON www.eaton.com
Step 6: Check the counter functions with the assembly.
Figure 6. Step 6
Step 7: Reinstall front cover removed in Step 1.
Eaton is a registered trademark.
All other trademarks are property of their
respective owners.
Breaker operations counter in
IZM low voltage circuit breakers
Eaton Industries GmbH
Hein-Moeller-Straße 7-11,
53115 Bonn,
Germany
Eaton.com
© 2022 Eaton Industries GmbH
All Rights Reserved
Printed in Germany
Publication No. IL0131174ENH01
Effective May 2022
Instructional Leaflet IL0131174EN
Effective May 2022
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.
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Eaton IZM-PXR Operating instructions
- Category
- Car kits
- Type
- Operating instructions
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