32
UPS for 400 Vac Grid, Installation Guide, doc. rel. 3.0
Table 4: Recommended circuit breakers for the current rating for 30-300kva 400v UPS
Recommended Circuit Breaker / switch ratings for B300
UPS Model
CAPACITY
(KVA)
Nominal
INPUT CURRENT
SW1 rating
(RECTIFIER
INPUT CB)
(AMPS)
SW1
rating
(Rectifier
input CB)
C.B. rating
for output
(CB5) and
BYPASS
(CB3)
(AMPS)
(wires C.S.
mm
2
)
Use
copper
wire only!
(AMPS)
(wires C.S.
mm
2
)
Use
copper
wires only!
(AMPS)
30k
3 x 43.5
6
3 x 75
3 x 43
10
3 x 50
60k
3 x 87
16
3 x 120
3 x 86
25
3 x 100
90k
3 x 130.5
50
3 x 175
3 x 130
50
3 x 150
120k
3 x 174
50
3 x 225
3 x 173
70
3 x 200
150k
3 x 287.5
95
3 x 275
3 x 216
95
3 x 225
180k
3x260
120
3 x 325
3 x 260
120
3 x 300
210k
3 x 304.5
150
3 x 375
3 x 300
150
3 x 325
240k
3 x 348
185
3 x 425
3 x 346
240
3 x 350
270k
3 x 391.5
2 x 120
3 x 475
3 x 390
240
3 x 400
300k
3 x 435
2 x 120
3 x 525
3 x 433
300
3 x 450