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New generation IZM97, 99 low voltage air circuit breaker instruction manual
MN013010EN February 2020 www.eaton.com.cn
Section 5: Dimensional drawings
IZM99 withdrawable type cassette dimensions and mounting dimensions (4P, 4000~6300A)
Ø11
Ø8.2
Ø8.2
Ø11
10.2
38.1
41.6
241.3
337
475.5
241.3
120.7
241.3
241.3
384.1
475.5
350
351.4
4 x 8.9
6.4
4 x 19.1
50.3
4 x 13.3
25.4
231.9
25.4
279.3
351.3
127.8
Ø22.4
6 places
6 places
4 places
4 places
Preferred mounting positioning
Preferred mounting positioning
Mounting plane
Mounting plane
Required mounting
locations
4 pole mounting locations
Bottom view
Rear view
Optional earth bus mounting
location. replace existing
with M8x25 hex. bolts for
use with 1/4 ( 6mm) bus
Earth contact access hole