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4. Optional Accessories
Key Lock : K1
It is locking device which prevents a certain circuit breaker from being operated by users discretion when two or
more circuit breakers are used at the same time.
K1: Preventing mechanical closing
1. Installation Method
1) Mount Key lock to the upper plate of mechanism by using the mounting projection and hook placed on the
bottom of Key lock as shown in fig. below.
2) Finish the installation by tightening the corresponding screws.
Magnification of
assembly part
Mounting projection
Hook
Guide hole
Mounting hole
Accessories