English (GB)
21
Fig. 9 Wiring diagram, 10-core cable, delta-connected (D)
To find out whether the pump is fitted with a thermal
switch or a PTC thermistor, measure the motor
winding resistance. See table below.
TM04 6887 0314
Yellow and green
Standard version
Thermal switch and
moisture switch*
Sensor version
Thermal switch, Pt1000 resistor,
moisture switch and water-in-oil
sensor
Sensor version
Thermal switch, PTC thermistor *,
moisture switch and water-in-oil
sensor
* Pumps from 4 kW and up sold in Australia and New Zealand are fitted with a PTC thermistor.
Without
cable
With 10 m
cable
With 15 m
cable
Thermal
switch
< 50 mΩ < 320 mΩ < 390 mΩ
PTC
thermistor
> 100 mΩ > 370 mΩ > 440 mΩ
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