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Grundfos MG160MB4-42FF300-F1

* Model: The model number is MG160MB4-42FF300-F1.
* Power (P_2): This motor has a power output of 11.0 kW, which is equivalent to about 15 horsepower.
* Voltage (U): The motor is designed to operate on two different voltage configurations, likely a delta (Δ) and a star (Y) connection.
* For a 50 Hz power supply, it can run on 380-415V with a current of 21.6-20.4A, or 23.8-22.4A at the lower voltage.
* For a 60 Hz power supply, it can run on 460-480V with a current of 21.0-17.8A or 23.0-19.6A at the lower voltage.
* Frequency (Hz): The motor is rated for both 50 Hz and 60 Hz operation, making it suitable for use in various regions worldwide.
* Power Factor (cos \phi): The power factor is listed as 0.85-0.84 for 50 Hz and 0.90-0.83 for 60 Hz. This indicates how efficiently the motor uses electrical power. A power factor closer to 1.0 is more efficient.
* Efficiency (\eta): The motor's efficiency is specified as 91.0-92.0% at 50 Hz and 97.4-93.0% at 60 Hz. This is a crucial metric, as it shows the percentage of electrical power converted into mechanical power.
* Speed: The motor's speed is listed in revolutions per minute (min^{-1}). For 50 Hz, the speed is 1460-1470 min^{-1}, and for 60 Hz, it is 1750-1770 min^{-1}. This confirms it's a 4-pole motor since the speeds are slightly less than the synchronous speeds of 1500 RPM (for 50 Hz) and 1800 RPM (for 60 Hz), which is typical for an induction motor.
Other Details
The upper nameplate provides more general information:
* Serial No.: The unique serial number for this motor is 5496.
* Ingress Protection (IP) rating: The motor has an IP55 rating, which means it's protected against dust ingress and low-pressure jets of water from any direction.
* Bearings: The bearing types are specified as 6309.C4 (DE, likely "Drive End") and 6309.C4 (NDE, likely "Non-Drive End"). These are standard deep groove ball bearings.
* Grease: The recommended grease is UNIREX N3 ESSO.
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* Protector Type: The motor has a thermal protector, specifically a PTC 160°C TTP211. This protects the motor from overheating.
* Weight: The motor's weight is listed as 98 kg.