Manual

3-5
3.3. Cable Selection
The following tables list all the information between KVA of the UPS and the size
and rating of the cables. Inadequate cable size or over sized breaker will incur risk
of fire or damage of insulation. Therefore, please look up the following tables to
determine the input circuit breaker rating and the size of cable for input, output and
battery connections. These data are for reference; final decision should be made in
accordance with the local electrical regulations.
BREAKER RATING FOR INPUT
KVA INPUT Imax(A) NFB(A)
20 230/400V 3Φ 50 50
30 230/400V 3Φ 73 75
40 230/400V 3Φ 98 100
50 230/400V 3Φ 122 125
60 230/400V 3Φ 147 150
80 230/400V 3Φ 172 175
100 230/400V 3Φ 215 225
120
230/400V 3Φ
258 300
160
230/400V 3Φ
344 350
240
230/400V 3Φ
520 500
320
230/400V 3Φ
692 700
CABLE SIZE FOR INPUT
KVA INPUT In(A) R/S/T(mm
2
) N(mm
2
)
20 230/400V 3Φ 36 8 14
30 230/400V 3Φ 54 14 22
40 230/400V 3Φ 72 22 30
50 230/400V 3Φ 90 30 38
60 230/400V 3Φ 108 38 50