Features:
- Rated output current: 3 A
- Rated output power: 72 W
- Rated output voltage: d.c. 24 V
SD831 provides regulated ABB cabinet power.
Input protection, load margin, thermal conditions and redundancy determine performance.
Measure output under actual cabinet load before service.
Verified resources for ABB SD831:
Power Data:
- Rated output current: 3 A
- Rated output power: 72 W
- Rated output voltage: d.c. 24 V
Use SD831 within its official input and output envelope.
Load Planning:
- Calculate sustained load
- Include startup and fault demand
- Maintain thermal margin
Size SD831 from worst-case load and ambient.
Protection:
- Select upstream protection
- Provide protective earth
- Coordinate secondary protection
Coordinate conductors and protection around SD831.
Installation Check:
- Verify polarity
- Measure voltage under load
- Test alarms and blackout
Record checks after installing SD831.