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IZM63 / IN63 low voltage air circuit breaker
MN013014EN May 2021 www.eaton.com.cn
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 break-
er’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 cir-
cuit 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 exten-
sion 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 of the rating plug installed in the trip unit
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 (Figure 2-2).
Breaker model
Weights (kg)
Weights (kg)
Fixed
Drawout
3P
4P
3P
4P
IZM63N…50…
125.20
163.30
157.40
200.00
IZM63N…63…
125.20
163.30
157.40
200.00
IZM63H…50…
125.20
163.30
157.40
200.00
IZM63H…63…
125.20
163.30
157.40
200.00
Table 2-1 IZM63 basic circuit breaker weights
