Eaton IZM Manual

Effective December 2021
Instructional Leaet IL0131170EN
Auxiliary switch kit in
IZM low voltage circuit breakers
mWARNING
(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.
Section 1: General information
An auxiliary switch is an optional device providing
remote electrical indication if the circuit breaker is
open or closed. Up to three auxiliary switches can
be mounted in the circuit breaker. Each switch has
four normally open (“A”) and four normally closed
(“B”) contacts for a total of 12 available change
over contacts.
Section 2: Installation of the
auxiliary switch
To install the auxiliary switch, proceed with the
following five 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 hous-
ing 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: Place the appropriate label on the
front cover nameplate space located under
“Accessories.”
Figure 1. Steps 1 and 2
Step 3: Slide the lock on the switch to the
unlocked (up) position. Install the hook feet
down through openings as shown. Then slide
the auxiliary switch forward so the feet engage
the mounting plate. Slide the lock down into the
locked position.
Figure 2. Step 3
ote:N The number of auxiliary switches and shunt trips
cannot exceed four.
Label Bolt
Forward
Auxiliary Switch
Second Switch
Here
Mounting
Plate
Third Switch Here
First
Switch
Here
Hook
Feet
Lock

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respective owners.
Auxiliary switch kit in
IZM low voltage circuit breakers
Eaton Industries GmbH
Hein-Moeller-Straße 7-11,
53115 Bonn,
Germany
Eaton.com
© 2021 Eaton Industries GmbH
All Rights Reserved
Printed in Germany
Publication No. IL0131170EN
Effective December 2021
Instructional Leaflet IL0131170EN
Effective December 2021
Step 4: Wire auxiliary switches per Table 1 and wire markings.
Figure 3. Step 4
ote:N Securely tie wires away from moving parts.
Table 1. Auxiliary Switch Secondary Wiring
Auxiliary Switch Position
#1 Contacts 49–60
#2 Contacts 61–72
#3 Contacts 73–84
Step 5: Reinstall front cover removed in Step 1.
Terminal 49 Terminal 84
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.