35
Figure 31. CPT Fuse Rollout Tray with Key Interlocking
Instrument Transformers
A: Step 1: Secondary breaker is closed. Open secondary
breaker. (05092-89)
B: Step 2: Secondary breaker is open. Rotate key interlock,
extending interlock to block closing of secondary breaker.
Remove key. (05093-89)
C: Step 3: Key interlock on rollout tray is extended, prevent-
ing operation of handle/interlock bars. Insert key, rotate key
interlock, withdrawing interlock so that handle/interlock bar
is free to move. (05091-89)
D: Step 4: Key interlock withdrawn. Operate handle/inter-
lock bar to allow withdrawal of rollout tray. (05090-89)
05102-89
A
B
C
D
Courtesy of NationalSwitchgear.com
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