Breaker Mounted Key Lock - Siemens UL 1066 Operating Instructions Manual

15.1.1 Breaker mounted key lock

Hazardous voltage.
Will cause death, serious personal injury, or equipment damage.
Turn off and lock out all power supplying this device before working on this device.
High speed moving parts.
Can cause serious personal injury.
Discharge the closing spring before inspection and before carrying out any work on the circuit breaker.
When the key is removed, the circuit breaker is locked in the open position.
- OPEN the circuit breaker and discharge the closing spring
- Move the circuit breaker into the withdrawn position in the cradle
- Remove front panel
 (page 9-49)
- Remove trip unit
Installing the locking mechanism
For key lock types: KIRK, Superior
1
NOTE
When removing the screws (1), ensure that the cylinder does not slip out of the lock. If this happens, the lock cannot be re-assembled.
DANGER
WARNING
 (page 23-4)
 (page 23-2)
 (page 23-3)
(1)
2
15 – 2