Eaton IZM Instructional Leaflet

Instructional Leaflet IL0131171EN
Spring release latch check switch (LCS) for
IZM low voltage circuit breakers
(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.
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.
Effective May 2022
m WARNING
m WARNING
Section 1: General information
A latch check switch (LCS) indicates when the
circuit breaker is "ready to close" (Figure 1). The
internal version of the LCS is wired to the spring
release. It will not permit activation of the spring
release until the circuit breaker is fully charged and
the trip latch is reset.
Required tools
1/4-inch drive ratchet
•
10 mm socket
•
Kit parts identification
Refer to Figure 1 for visual identification of the
contents of kit.
N ote: 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.
LCS (internal
version shown)
Figure 1. Contents of Kit