4
IZM32 / IN32 low voltage air circuit breaker
MN013017EN May 2022 www.eaton.com
Section 2: Receiving, handling, and installation
2-4 Lifting circuit breaker
CAUTION
Do not attempt to lift circuit breakers with ordinary crane
hooks, ropes, chains, or other such devices. Failure to follow
this caution could result in damage to vital parts, such as arc
chutes, barriers, and wiring or the entire circuit breaker.
To closely examine, install, or just become more familiar
with the circuit breaker, carefully lift and place the circuit
breaker on a solid work surface capable of handling the
circuit breaker’s weight (Table 2-1) or on the captive
drawout extension rails of the breaker compartment. This
is accomplished by using the appropriate lifting yoke and
lifter. The lifting yoke consists of two steel hooks specially
shaped to hook under the integral molded lifting handles
on both sides of the circuit breaker. Every effort should be
made during lifting to minimize circuit breaker swing and tilt.
If the circuit breaker is to be lifted onto compartment
extension rails, follow the instructions in Section 2-7,
“Installing drawout circuit breaker.”
2-5 Circuit breaker inspection
All circuit breakers, once removed from their shipping
containers, should be visually inspected for any obvious
damage.
The current rating shown on trip unit label (Figure 2-2a)
should match the current rating of the sensors mounted
on the lower primary stabs of the circuit breaker. Check
to make sure that this match exists. The sensor rating can
be viewed through the viewing windows at the rear of the
circuit breaker and (Figure 2-2b).
Breaker model
Weights (kg)
Weights (kg)
Fixed
Drawout
3P
4P
3P
4P
IZM32B…-1
68
86
86
112
IZM32N…-1
68
86
86
112
IZM32H…-1
68
86
86
112
Table 2-1 IZM32 basic circuit breaker weights
CAUTION
Figure 2-2a PXR trip unit current rating label
Rated current label
