Technical Data, Hydro Multi-E With Single-Phase Pumps; Supply Voltage; Leakage Current; Torques - Grundfos Hydro Multi-E Series Installation And Operating Instructions Manual

25. Technical data, Hydro Multi-E with
single-phase pumps

25.1 Supply voltage

3 x 380-415 V - 10 %/+ 10 %, 50/60 Hz, N, PE.
Check that the supply voltage and frequency correspond to the
values stated on the nameplate.
Recommended fuse size
Motor size
[kW]
0.37 - 0.75
1.1 - 1.5
Standard as well as quick-blow or slow-blow fuses may be used.

25.2 Leakage current

Motor size Number of pumps in
[kW] booster system
2
0.37 - 1.5 3
4
The leakage currents are measured in accordance with EN
61800-5-1:2007.

25.3 Torques

Terminal Thread size
L1, L2, L3, L, N M4
NC, C1, C2, NO M2.5
1-26 and A, Y, B M2
26. Technical data, Hydro Multi-E with
three-phase pumps
26.1 Supply voltage
3 × 380-480 V - 10 %/+ 10 %, 50/60 Hz, PE.
Check that the supply voltage and frequency correspond to the
values stated on the nameplate.
Recommended fuse size
Motor size
[kW]
0.37 - 1.1
1.5
2.2
3
4
5.5
7.5
11
Standard as well as quick-blow or slow-blow fuses may be used.
40
Min. Max.
[A] [A]
6 10
10 16
Leakage current
[mA]
< 7
< 10.5
< 14
Maximum torque
[Nm]
1.8
0.5
0.5
Min. Max.
[A] [A]
6 6
6 10
6 16
10 16
13 16
16 32
20 32
32 32
26.2 Leakage current
Motor size
[kW]
booster system
0.3 - 11
(supply voltage less than
400 V)
0.37 - 11
(supply voltage greater
than 400 V)
The leakage currents are measured in accordance with EN
61800-5-1:2007.
26.3 Torques
See section 25.3 Torques

27. Operating conditions

27.1 Temperatures

27.1.1 Ambient temperature during storage and
transportation
Minimum -30 °C
Maximum +60 °C.
27.1.2 Ambient temperature during operation
Minimum -20 °C
Maximum +50 °C.
The motors can operate with the rated output power (P2) at 50
°C, but continuous operation at higher temperatures will reduce
the expected product life. If the motors are to operate at ambient
temperatures between 50 and 60 °C, oversized motors must be
selected. Contact Grundfos for further information.
27.1.3 Liquid temperature
0 to +60 °C.
Number of
Leakage current
pumps in
[mA]
2 < 7
3 < 10.5
4 < 14
2 < 10
3 < 15
4 < 20