Grundfos MQ 3-45 User Manual

11
English (US)
9.3.1 230 V
Fig. 15 Wiring diagram - 230 V
9.4 Winding resistance measurement
The measurement can be done with or without cables connected to the PCB and the capacitor.
TM02 2424 2409
Black (phase)
Red
Black
Orange
> Flow sensor
> Pressure switch
Capacitor
Yellow
Yellow
Electric motor
Yellow/green (ground)
Blue
White (neutral)
> Cable
B
A
Yellow
White
Red (main)
Motor
[V/Hz]
Measuring point Winding
Resistance
[Ω ± 10 %]
Ambient temperature
[°F] [°C]
230/60
A-B (blue - red) Main 5.4
70 21
A-C (blue - white) Aux 5.4

Grundfos MQ 3-45 Specifications

General

Power consumption	1000 W
Maximum head	45 m
Maximum flow rate	3 m³/h
Protection class	IP54
Weight	13 kg
Maximum liquid temperature	35 °C
Maximum operating pressure	7.5 bar
Pumped liquid	Clean water
Liquid temperature range	0 - 35 °C
Maximum ambient temperature	45 °C
Supply voltage	220-240 V
Rated power - P2	0.75 kW
Mains frequency	50/60 Hz
Rated current	4.5 A
Enclosure class	IP54
Inlet connection	1 inch
Outlet connection	1 inch
Power supply	220-240 V, 50/60 Hz
Pump type	Centrifugal
Built-in pressure tank	Yes
Approvals	CE
Material	Stainless steel