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4.1 220/380V Three-phase electrical motor
Electric motors for industrial applications
Wide range of three-phase electric motors for industrial and agricultural applications:
- Three-phase asynchronous motors 220V / 380V
- Three-phase asynchronous motors 400/690 V
- 220V / 380V brake motors
- Batch Three-phase motor 220/380 V + Single/Three phase 220V frequency converter
Our electric motors are sold online. For your urgent needs, they are shipped within 24 hours. (Product in stock up to 7.5 kW)
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Our tips to choose your single or three-phase electric motor
The first specification to know about is the voltage: is it single-phase or three-phase? Single-phase motors are generally used for domestic power supply, in private households (example: electrical outlets at home). Three-phase (3 x 400 V) is more common in the industrial sector, for big energy-consuming machines.
To choose your electric motor, it is necessary to know the needs of your machine: on the motor nameplate, look for the power in kW (kilowatt) necessary for the proper functioning of the machine. Then, you need to know about the rotation speed, which is a multiple of the number of motor pole pairs:
2P (2 pairs of poles): 3,000 RPM, 4P: 1,500 RPM, 6P: 1,000 RPM, 8P: 750 RPM.
For the same power, the more pole pairs a motor has, the bigger it is and the slower it runs (base speed: 50 Hz).
Examples of applications: car lift, wood working machine, tyre changer, conveyor, shredder, pump...
Characteristics and calculation of three-phase motor power
An electric motor transforms the electrical energy in mechanical energy. Motors are supplied by a single-phase voltage (1-phase + 1 neutral) or a three-phase voltage (3 phases).
To operate your machine, 4 main criteria need to be considered when choosing your three-phase electric motor:
- The motor power: from 0.37 kW to 315 kW. 1 HP (Horsepower) = 0.746 Kw
| 1/2 HP | 3/4 HP | 1 HP | 1.5 HP | 2 HP | 3 HP | 4 HP | 5 HP | 7 HP | 10 HP |
| 0.37 kW | 0.55 kW | 0.75 kW | 1.1 kW | 1.5 kW | 2.2 kW | 3 kW | 3.7 kW | 5.15 kW | 7.5 kW |
- The rotation speed: 750 RPM (8 poles), 1,000 RPM (6 poles), 1,500 RPM (4 poles) or 3,000 RPM (2 poles)
- The mounting system: B3 (foot mounted), B5 (plain holes flange) or B14 (tapped holes flange).
- The shaft height sets the dimensional characteristics of the electric motor according to the IEC standard (56, 63,71,80,90,100,112,132,160,180...)
EASI-Spare motors also have an IP55 protection rating: they are protected against dust infiltration and water jets.
Discover our range of 220V single-phase motors as well as our variable frequency drives.