Atlas Copco DWS VSD+

3.6. Electrical data
Table 7 Electrical data
Characteristics
DWS 750 VSD+ DWS 450 VSD+ Units
Dry pump motor rating
22 11 kW
29.5 14.75 hp
Current rating
(380 - 460 V systems)
50 - 60 50 - 60 A
Recommended branch circuit protec-
tion UL
(380 - 460 V systems)
380 V a.c. 70 A
400 V a.c. 70 A
460 V a.c. 60 A
380 V a.c. 35 A
400 V a.c. 35 A
460 V a.c. 30 A
A
Recommended branch circuit protec-
tion IEC
(380 - 460 V systems)
380 V a.c. 80 A
400 V a.c. 63 A
460 V a.c. 63 A
380 V a.c. 40 A
400 V a.c. 32 A
460 V a.c. 32 A
A
Minimum cable size for 380 - 460 V
systems (or corresponding A
WG
size)
16 (4) 6 (8)
mm
2
(A
WG)
Mains connector for 380 - 460 V sys-
tems
UT16 & UT16 PE -
The maximum geometric wire gauge for UT16 and UT16 PE is 25 mm
2
and
maximum A
WG size is 4 A
WG.
Table 8 General electrical data
Description
Rating Units
Supply voltage 3-phase 380 - 460 (see rating plate) V a.c.
Frequency 50/60 Hz
Wiring configuration 3 wire plus Earth (ground)
Voltage tolerance range ± 10%
Installation category II (IEC 60664-1)
Input supply voltage unbalance
Should not exceed 2% when as-
sessed over any one minute peri-
od
Short circuit current rating (when
installed with class T)
5 kA
Second protective earth (ground)
conductor
Must be fitted with a cross‑sec-
tional area at least equal to phase
conductor size
Typical earth leakage†
For 380 - 460 V systems:
For DWS 750 VSD+ < 10 mA
Technical data
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