Siemens UL 489 Operating Instructions Manual page 149

Field installation
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.
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.
Removing dummy module
Installing and snapping the ground-fault protection module into place
- Switch on external 24 V DC voltage supply, if planned
- Adjust settings for ground-fault protection
- Test the tripping function with the handheld test device
- Install and seal sealing cap of trip unit, if applicable
DANGER
WARNING
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