APC 990-4053 Power Supply User Manual


 
16 Installation Guide APC Silcon 480kW 400V UPS
990-4053
External Connection
4.4 Relay Board
Relays
All relays are “fail safe”: In alarm modes, relay coil will be de-energized.
Maximum load: 8.0A – 250VAC
Minimum load: 0.05A – 6VAC
1
2
3
0.3A – 60VDC
0.05A – 6VDC