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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
Step 11: Rotate the key counterclockwise to lock the internal
interlock as shown.
If the original counter is removed in Step 3, re-install it to
the rear of the new mounting panel and tighten it using two
M3.5x8 tapping screws. Refer to the Operation Counter IL
installation manual.
Step 12: Re-install the front cover removed in Step 1.
Remove the key for easy installation. The key must be in cir-
cuit breaker OPEN position.
Figure 10. Step 10
Figure 11. Step 11
Figure 1. Step 1
Fixed-type IZM9 low voltage circuit breaker
800/1600A vertical adapter
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 vertical adapter is installed directly on the primary wiring
terminal block behind the panel. This adapter is not a cable
adapter, but used for bus connection. Six adapters are used
for three pole circuit breakers, and eight adapters for four
pole breakers. The required fasteners are supplied, and the
screw torque is 48-63N.M.
Section 2: Installation of vertical adapter
Proceed with the following two steps to install the vertical
adapter:
Step 1: The mounting method is shown below. The load
assembling method is also shown.
Interlocking
lever screw (P)
Fixing pin (M)
Interlocking lever (N)
Load connecting
terminal
M10x45
hexagon screw
Spring washer
Flat washer
Flat washer
M10 hexagon nut
Vertical adapter