C750 & C750R User
Manual Page 24
Recommended circuit breaker and contactor current specifications:
UPS power rating
Input mode
Breaker
Contactor
10kVA
1 phase main input
63A
≥
63A
3 phase main input
32A
≥
32A
1 phase bypass input
63A
≥
63A
3 phase bypass input
32A
≥
32A
20kVA
1 phase main input
125A
≥
125A
3 phase main input
63A
≥
63A
1 phase bypass input
125A
≥
125A
3 phase bypass input
63A
≥
63A
Recommended circuit breaker current specifications:
UPS power rating
Output mode
Breaker current
10kVA
1 phase output
63A
3 phase output
32A
20kVA
1 phase output
125A
3 phase output
63A
Recommended battery circuit breaker current specifications:
UPS power rating
Breaker current
10kVA
80A
20kVA
80A
Read the safety instructions regarding backfeed protection requirements