Eaton IZM Series, Installation And Removal Instructions

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6
Installation and removal instructions
for IZM series fixed breaker
three-way Type 32 cable interlock kit
EATON www.eaton.com
Instructional Leaflet
IL0131187EN
Effective June 2022
Step 6
This step contains cable routing and installation procedures . Make
sure that cables move freely in their cable housings before installa-
tion . When attaching cables to swivel fittings, ensure that both ends
of the cable are connected to push swivel fittings or both ends of
the cable are connected to pull swivel fittings (refer to Figure 11 ) .
For example, a cable connected to the Drive Lever Pull Swivel Fitting
on Breaker A must connect to the Driven Lever Pull Swivel Fitting on
Breaker B .
ATTENTION
FIGURE 10 SHOWS THE TYPICAL CABLE ROUTING FOR TYPE 32 INTERLOCK
CONFIGURATIONS. NOTICE THAT DEPENDING ON THE POSITION OF THE
BREAKER WITHIN THE INTERLOCK CONFIGURATION, THE CABLES WILL BE
ATTACHED IN DIFFERENT LOCATIONS. THE CABLE MOUNTING ON BOTH
POINTS OF THE DRIVE AND DRIVEN LEVERS ARE DESCRIBED BELOW.
TABLE 4 SHOWS THE TYPE 32 INTERLOCK LOGIC DEPENDING
ON POSITION.
Locate compression
spring above swivel
fitting
Locate compression
spring above swivel
fitting
Typical interlock
assembly connection
Breaker C
Breaker B
Breaker A
Figure 10. Cable routing for Type 32 interlock configurations
Table 4. Type 32 interlock logic
Type 32 (six cable)
Breaker
A
B C
A B C
Allowed states or conditions
0 0 0
1 0 0
0 1 0
0 0 1
1 1 0
0 1 1
1 0 1
0 = open
1 = closed
Installation recommendations
•
4 inch (102 mm) minimum allowable cable housing bend radius
•
Use plastic wire ties / clamps to attach cable housing to structure
after installation and adjustment
•
Do not compress cable housing
•
Recheck to ensure cables move freely
Driven ”And” lever
Driven lever
push swivel
fitting
Drive lever
pull swivel
fitting
Driven lever
pull swivel
fitting
Drive lever
push swivel
fitting
Drive lever
Gap
Figure 11. Push and pull swivel fitting identification