Settings MGE MGE OEM
Limit 1 exceeded Not active Not active
Limit 2 exceeded Not active Not active
Standstill heating Not active Not active
Motor bearing monitoring Not active Not active
7. Service
DANGER
Electric shock
Death or serious personal injury
‐ Switch off the power supply to the product including the power supply for the signal relays. Wait at least 5 minutes before you
make any connections in the terminal box. Make sure that the power supply cannot be switched on accidentally.
DANGER
Magnetic field
Death or serious personal injury
‐ Do not handle the motor or rotor if you have a pacemaker.
If service of the product is required, contact Grundfos.
7.1 Insulation resistance test
Do not use a megger or similar high voltage instrument, as the built-in electronics may be damaged.
7.2 Cleaning the product
WARNING
Electric shock
Death or serious personal injury
‐ Switch off the power supply to the product and to the signal relays. Check that the terminal box cover is intact before spraying
water on the product.
To clean the motor, follow the procedure below:
1. Let the motor cool down first to avoid condensation.
2. Spray it with cold water.
8. Technical data
8.1 Technical data, single-phase motors
DANGER
Electric shock
Death or serious personal injury
‐ Use the recommended fuse size.
Supply voltage
• 1 x 200-240 V - 10 %/+ 10 %, 50/60 Hz, PE
• 1 x 90-240 V - 10 %/+ 10 %, 50/60 Hz, PE
• 30-300 VDC. Power supply from a renewable-energy source.
Check that the supply voltage and frequency correspond to the values stated on the nameplate.
Recommended size of fuse or circuit breaker
Motor size [kW]
Minimum [A] Maximum [A]
0.25 - 0.75 6 10
1.1 - 1.5 10 16
You can use standard as well as quick-blow or slow-blow fuses.
Related information
4.2.6.1 Overvoltage and undervoltage protection
8.1.1
Leakage current
The leakage currents are measured in accordance with EN 61800-5-1:2007.
• Earth leakage current less than 3.5 mA (AC)
• Earth leakage current less than 10 mA (DC).
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