AEC IST5 Series, Service Manual

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3.1.7 Cable and Fuse Configuration
Cable designs must be compatible to current and voltage values stated herein, additionally local
instructions must be obeyed about these topics
UPS
RATİNG
(KVA)
RATED CURRENTS (A)
INPUT CURRENTS@MAX
CHARGE CURRENT (3P+N)
OUTPUT CURRENTS @100%
LOAD (3P+N)
380V 400V 415V 380V 400V 415V
10 22 20,9 20,2 19,7 18,8 18
15 33 31,4 30,2 29,6 28,2 27,1
20 44 41,8 40,2 30,3 28,2 27,8
30 66 62,7 60,5 45,6 43,4 41,9
40 89 84,6 81,6 78,9 75 72,4
60 133 126,4 121,7 118,4 112,5 108,5
80 177 168,2 162,1 157,8 149,9 144,5
100 222 210,9 203,3 197,3 187,4 180,7
120 266 252,7 243,6 236,7 224,9 216,7
It should be noted that with non-linear loads, neutral current may rise up to 1.5 times the phase
current.
Ground cable must be connected directly to ground line and must be kept as short as possible.
Typical ground cable cross sections are (for IST5 PF: 1):

4 mm2 for 10KVA

6 mm2 for 15KVA

10 mm2 for 20KVA

16 mm2 for 30KVA

25mm2 for 40KVA

35 mm2 for 60KVA

50 mm2 for 80KVA

70 mm2 for 100KVA

95 mm2 for 120KVA ratings.
The length of the cable must not be over 5 meters.