Technical Reference
Motor data
Feature
Description
Motor type
Frequency
50 or 60 Hz
Supply
3-phase
Starting method
• Direct on-line
• Star-delta
Maximum starts per
hour
30 evenly spaced starts per hour
Code compliance
IEC 60034-1
Rated output variation
±5%
Voltage variation without
overheating
±10%, provided that it does not run continuously at full load
Voltage imbalance
tolerance
2%
Stator insulation class
H (180°C [360°F])
Application limits
Data
Description
Liquid temperature
40°C (104°F) maximum
The pump must work fully submerged under full load operation.
Warm-liquid version : 70°C (158°F) maximum. These versions have certain operating
limitations which are stated on the plate on the pump.
Liquid density
Contact the local Xylem representative
pH of the pumped media
(liquid)
5.5–14
Depth of immersion
20 m (65 ft) maximum
Other
For the specific weight, current, voltage, power ratings, and speed of the pump, see
the data plate of the pump.
Technical Reference
Flygt 5520 Installation, Operation, and Maintenance Manual
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