Grundfos CRE Series - Technical Data, Three-phase Motors

13.2 Technical data, three-phase motors
WARNING
Electric shock
Death or serious personal injury
‐ Use the recommended fuse size.
Supply voltage
• 3 × 380-480 V -10 % / +10 %, 50/60 Hz, PE
• 3 × 400-480 V -10 % / +10 %, 50/60 Hz, PE
Check that the supply voltage and frequency
correspond to the values stated on the nameplate.
Recommended size of fuse
For recommended size of fuses see the tables below.
3 × 380-480 V, Model K
Motor size
[kW]
Recommended
[A]
Maximum
[A]
Fuse
type
11 35 63 gG
15 50 80 gG
18.5 60 80 gG
22 70 80 gG
3 x 400-480 V, Model K
Motor size
[kW]
Recomme
nded
[A]
Maximum
[A]
Fuse type
26 80 80 gG
For recommended size of fuses see the
appendix concerning installation in the
USA and Canada.
13.2.1 Leakage current (AC)
The leakage currents are measured without any load
on the shaft and in accordance with EN
61800-5-1:2007.
WARNING
Electric shock
Death or serious personal injury
‐ If the leakage current is greater than
3.5 mA, use a PE cable with a
minimum cross-section of at least 10
mm
2
, or use 2 separate PE cables with
the same cross section as the power
cable.
3 × 380-480 V, 50/60 Hz, Model K
Speed
[rpm]
Power
[kW]
Mains voltage
[V]
Leakage current (I
L
)
[mA]
1450-2200 11-22
≤ 400
3.5 < I
L
< 20
> 400
3.5 < I
L
< 30
2900-4000 15-22
≤ 400
3.5 < I
L
< 20
> 400
3.5 < I
L
< 30
3 × 400-480 V, 50/60 Hz, Model K
Speed
[rpm]
Power
[kW]
Mains voltage
[V]
Leakage current (I
L
)
[mA]
3500-4000 26
≤ 400
3.5 < I
L
< 20
> 400
3.5 < I
L
< 30
84
English (GB)