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New generation IZM97, 99 low voltage air circuit breaker instruction manual
MN013010EN February 2020 www.eaton.com.cn
Section 4: Accessory devices
Figure 2. Step 2
Step 2: Install all vertical adapters on the basic device as
shown. Pay special attention to the adapter and load terminal
positions.
IZM9 circuit breaker 2-way interlock
WARNING
(1) Only qualified electrical personnel should be permit-
ted 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
The mechanism linkage device can be used to interlock two
to three IZM circuit breakers. Mechanism interlocking holds
one or more circuit breakers tripped (prevents closure). An
operating lever assembly is installed on each circuit breaker
and interfaces with the main shaft and the tripper bar. The
lever assemblies are interconnected with cables. These
cables can be used for any orientation of the circuit breaker.
All IZM circuit breakers must use Type I and Type II kits.
Required tools
• 10mm socket and 1/4-inch socket bar
• 10mm open-end wrench
• 11/16-inch open-end wrench
• 3/8-inch open-end wrench
• 0.5mm plug gauge
• 4mm universal wrench
• Extension rod
Kit Parts Identification
Please refer to Figure 1 and Figure 2 for different parts pack-
ages (as shown in Figure 1): Parts packages are placed on
the circuit breaker, and cables are not included in the parts.
(A) M6 * 12mm hexagon screw (8)
(B) M6 * 25mm flat-head screw (2)
(C) M6 self-locking washer (12)
(D) M6 * 20mm hexagon screw (4)
(E) Drive arm (2)
(F) M6 square nut (6)
(G) Interlocking kit (2)
(H) Oil filler pipe (1)
(I) M6 * 0.75 spacer washer (4)
(J) Mounting panel (2)
Mount on the top of wire
Mount at the bottom of the
load connection terminal