6
Instruction Leaflet
IL2C13761H11
Effective March 2020
Installation instructions for Kirk
Key Interlock Kit (2C12891G21) in
Magnum low-voltage circuit breakers
EATON
www.eaton.com
Step 12b:
Pull the spring through and attach to the mounting plate,
as shown.
Figure 14. Step 12b
IMPORTANT
ATTACHING THE SPRING IN THIS MANNER WILL CAUSE MALFUNCTION
OF THIS KIT.
The spring SHALL NOT be mounted in this orientation.
Figure 15. Incorrect spring mounting
Step 13:
Insert key and rotate lock and standoff assembly. Connect
cable assembly to new trip lever with tapping screw
(Q)
. (DO NOT
OVERTIGHTEN.) See
Step 13a
for old lever replacement.
Step 13a:
If installed trip lever
(O)
is not provisioned to accept
tapping screw
(Q)
, replace it by prying off existing e-clip and sliding
off the trip lever. Install new trip lever
(O)
and install e-clip
(P)
.
Trip lever
(O)
E-clip
(P)
Tapping screw
(Q)
Figure 16. Steps 13 and 13a
Step 14:
If the breaker includes an operations counter, mount it
to the back of the lock mounting plate with two M3.5 x 8 mm self
tapping screws. Refer to IL2C14767H01 for complete operations
counter installation instructions.
Step 15:
Before reinstalling front cover, perform the following
functional checks:
1.
Verify if a UVR is installed. It may have to be temporarily
removed to perform checks.
2.
With no key, the breaker is “OPEN” and cannot “CLOSE”.
3.
With the key installed and rotated 90 degrees clockwise, the
breaker is fully functional.
4.
The key cannot be removed when the breaker is “CLOSED”.
5.
The key cannot turn the breaker “OFF”.
6.
Key removal only occurs when breaker is “OFF”.