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96
New generation IZM97, 99 low voltage air circuit breaker instruction manual
MN013010EN February 2020 www.eaton.com.cn
Section 7: Wiring diagrams
Zone interlock wiring
24
23
21
PX
R
24
23
21
PX
R
24
23
21
PX
R
24
23
21
PX
R
IZM series circuit breaker
IZM series circuit breaker
IZM series circuit breaker
IZM series circuit breaker
Zone 1
Zone 2
Zone 3
Zone 3
Notes:
1. Twisted together AWG #14 to #20 copper wire. Route the Zone Interlock wiring
separate from power conductors. DO NOT GROUND any Zone Interlock wiring.
2. The maximum distance between two farthest breakers on different zones (from the
Z
out
downstream to the Z
in
upstream terminals) is 250 feet (75 m).
3. A maximum of 20 breakers may be contained in parallel in one zone.
4. Provide a self interlocking jumper (on Zone 3), if coordination is desired with other
downstream breakers not providing the Zone Interlock feature.