Eaton IZMY Series Manual

Series IZMY OFF-position safety lock
• 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.
• 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.
Instructions apply to:
Effective January 2024 Series IZMYInstruction Leaet IL0131235ZU
IEC IZMY16

2
Series IZMY OFF-position safety lock Instruction Leaflet IL0131235ZU
Effective January 2024
EATON www.eaton.com
Section 1: General information
The key interlock secures the breaker in the “OFF” position. It is
mounted in the upper portion of the breaker and can be viewed from
the front cover. The customer supplies the keylock. The following
safety features are provided.
1. With NO key, the breaker is “OPEN” and cannot close.
2. With the key ON (key in the cylinder) and rotated, the breaker is
fully functional.
3. The key cannot be removed when the breaker is ON (closed).
ote:N To remove the key, press the breaker “OFF” button, and rotate the key
90 degrees counterclockwise.
Kit parts identification
• OFF-position safety lock (1)
• Screws M4×10 (1)
Required Tools
• Phillips screwdriver
• Drill Φ2
Section 2: Installation of key interlock
Proceed with the following 4 steps.
Step 1: Remove the mounting screws from the circuit breaker front
cover with the Phillips screwdriver. Pull down the charging handle (by
an approx. 45° angle) to remove the cover.
Figure 1.
Mounting screws
Step 1
Step 2: Place the OFF-position safety lock onto the mechanism
cover and secure it with the M4×10 screw (the lock should be in the
unlocked state during mounting).
Figure 2.
Screw M4×10
Step 2
Step 3: Make a cutout (Φ 25) on the cover according to the cover
outline.
Figure 3.
Ø25
Step 3
Step 4: Put the cover back.

3
Instruction Leaflet IL0131235ZU
Effective January 2024
Series IZMY OFF-position safety lock
EATON www.eaton.com
Notes:

Series IZMY OFF-position safety lock Instruction Leaflet IL0131235ZU
Effective January 2024
Eaton Industries GmbH
Hein-Moeller-Straße 7-11,
53115 Bonn,
Germany
Eaton.com
© 2024 Eaton Industries GmbH
All Rights Reserved
Printed in Germany
Publication No. IL0131235ZU
01.2024a / 157000006
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respective owners.
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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.