25
11. Technical data
Supply voltage
1 x 230-240 V – 10 %/+ 6 %, 50/60 Hz.
Motor protection
The pump requires no external motor protection.
Enclosure class
IP 44.
Insulation class
F.
Relative air humidity
Maximum 95 %.
Ambient temperature
0 °C to +40 °C.
Temperature class
TF110 to EN 60335-2-51.
Liquid temperature
M110 °C.
Continuously: +2 °C to +95 °C.
Pumps in domestic hot-water systems:
Continuously: +2 °C to +60 °C.
Maximum system pressure
The maximum system pressure is indicated on the
pump flanges: PN 6 / PN 10: 10 bar.
Number of bolt holes in the pump flange: 4.
Inlet pressure
Recommended inlet pressures:
•
Min. 0.15 bar at +75 °C.
•
Min. 0.45 bar at +95 °C.
EMC (electromagnetic compatibility)
EN 61800-3.
Sound pressure level
The sound pressure level of the pump is lower than
54 dB(A).
Leakage current
The pump mains filter will cause a discharge current
to earth during operation.
I
leakage
< 3.5 mA.
Standby loss
Single-head pumps: Lower than 3 W.
Twin-head pumps: Lower than 7 W.
Inputs and outputs of a pump with relay module
Inputs and outputs of a pump with GENI module
12. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
Ambient
temperature
[°C]
Liquid temperature
Min. [°C]
Max. [°C]
0 2
95/110
30 2
95/110
35 2
90/90
40 2
70/70
Signal output
Internal potential-free change-
over contact.
Maximum load:
250 V, 2 A, AC1.
Minimum load: 5 V, 100 mA.
Screened cable depending on
signal level.
Input for external
start/stop
External potential-free contact.
Contact load: 5 V, 10 mA.
Screened cable.
Loop resistance:
Maximum 130
Ω
.
Inputs for max.
and min. curves
External potential-free contact.
Contact load: 5 V, 1 mA.
Screened cable.
Loop resistance:
Maximum 130
Ω
.
Input for analog
0-10 V signal
External signal: 0-10 VDC.
Maximum load: 1 mA.
Screened cable.
Bus input
Grundfos bus protocol,
GENIbus protocol, RS-485.
Screened cable.
Wire cross section:
0.25 - 1 mm
2
.
Cable length:
Maximum 1200 m.
Signal output
Internal potential-free change-
over contact.
Maximum load:
250 V, 2 A AC1.
Minimum load: 5 V, 100 mA.
Screened cable depending on
signal level.
Input for external
start/stop
External potential-free contact.
Contact load: 5 V, 10 mA.
Screened cable.
Loop resistance:
Maximum 130
Ω
.
Subject to alterations.
Summary of Contents for MAGNA 25-100
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