Emerson SP3403 - Cable and Fuse Ratings

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Unidrive SP Regen Installation Guide 75
Issue Number: 2 www.controltechniques.com
6.3 Cable and fuse ratings
The input current is affected by the supply voltage and impedance.
Typical input current
The values of typical input current are given to aid calculations for power
flow and power loss.
The values of typical input current are stated for a balanced supply.
Maximum continuous input current
The values of maximum continuous input current are given to aid the
selection of cables and fuses. These values are stated for the worst case
condition with the unusual combination of stiff supply with bad balance.
The value stated for the maximum continuous input current would only
be seen in one of the input phases. The current in the other two phases
would be significantly lower.
The values of maximum input current are stated for a supply with a 2%
negative phase-sequence imbalance and rated at the maximum supply
fault current given in Table 6-2 to Table 6-2.
Table 6-2
Size 1 to 3 input current, fuse and cable size ratings
Model
Maximum
continuous
input
current
A
European USA
Fuse
rating
IEC gG
A
Cable size
EN60204
Fuse
rating
IEC gG
A
Cable
size
UL508C
Input
mm
2
Input
AWG
SP1201 5.2 10 1.0 10 18
SP1202 6.8 10 1.0 10 16
SP1203 9.6 12 1.0 12 14
SP1204 11 12 1.0 12 14
SP2201 15.5 20 2.5 20 14
SP2202 22 25 4.0 25 10
SP2203 28 32 6.0 32 8
SP3201 42 50 16 50 16
SP3202 54 63 25 63 25
SP1405 8.8 12 1.0 15 14
SP1406 11 16 1.5 15 14
SP2401 15.3 20 2.5 20 14
SP2402 21 25 4.0 25 10
SP2403 29 32 6.0 30 8
SP2404 29 32 6.0 30 8
SP3401 35 40 10 40 6
SP3402 43 50 16 45 6
SP3403 56 63 25 60 4
SP3501 5.4 8 1.0 8 18
SP3502 6.1 8 1.0 8 16
SP3503 8.4 12 1.0 12 14
SP3504 11 12 1.0 12 14
SP3505 16 20 2.5 20 14
SP3506 22 25 4.0 25 10
SP3507 27 32 6.0 32 8