English (GB)
40
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
Standard as well as quick-blow or slow-blow fuses may be used.
25.2 Leakage current
The leakage currents are measured in accordance with EN
61800-5-1:2007.
25.3 Torques
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
Standard as well as quick-blow or slow-blow fuses may be used.
26.2 Leakage current
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.
Motor size
[kW]
Min.
[A]
Max.
[A]
0.37 - 0.75 6 10
1.1 - 1.5 10 16
Motor size
[kW]
Number of pumps in
booster system
Leakage current
[mA]
0.37 - 1.5
2 < 7
3 < 10.5
4< 14
Terminal Thread size
Maximum torque
[Nm]
L1, L2, L3, L, N M4 1.8
NC, C1, C2, NO M2.5 0.5
1-26 and A, Y, B M2 0.5
Motor size
[kW]
Min.
[A]
Max.
[A]
0.37 - 1.1 6 6
1.5 6 10
2.2 6 16
31016
41316
5.5 16 32
7.5 20 32
11 32 32
Motor size
[kW]
Number of
pumps in
booster system
Leakage current
[mA]
0.3 - 11
(supply voltage less than
400 V)
2< 7
3 < 10.5
4< 14
0.37 - 11
(supply voltage greater
than 400 V)
2< 10
3< 15
4< 20
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