SMA SC 500CP-US Maintenance Manual - Manual (Page 24)

5 Maintenance with DC, AC and Control Voltage Present SMA America, LLC
24 SCCP-US-WH-US_en-30 Maintenance Manual
Additionally required maintenance material (not included in the scope of delivery):
☐ A testing device approved by the manufacturer of the AC circuit breaker (e.g. TT1 from ABB).
Procedure:
1. Open the doors of the interface cabinet.
2. Use the testing device to check whether the AC circuit breaker is ready for operation (instructions for testing are
included in the documentation of the testing device).
If a fault occurs during the test, contact the SMA Service Line.
3. Close the doors of the interface cabinet.