Siemens UL 489 - Installing Shunt Trips, Coils, and Devices

11 – 2
11.2 Installing shunt trips, closing coils, and undervoltage devices
- OPEN the circuit breaker and discharge the closing spring  (page 24-2)
- Move the circuit breaker into the withdrawn position in the cradle  (page 24-3)
- Remove front panel  (page 24-4)
DANGER
Hazardous voltage.
Will cause death, serious personal injury, or equipment damage.
Turn off and lock out all power supplying this equipment before working on this device.
WARNING
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.
2
1
Retaining bracket
3
4
Replace retaining bracket and screw down.