AC Induction MotorHengshui YE3 IE3 · IEC 112M
YE3-112M-4
4 kW 4-pole IE3 three-phase motor, 380 V 50 Hz, IP55, frame 112M.
Manufacturer datasheet: Hengshui Electric (Hebei) · YE3-112M-4 ↗ (checked 2026-10-18)Maker profile & contacts →
Figures are copied from the maker’s published datasheet; curves are calculated from them. Confirm with the manufacturer before ordering. Not stated on the datasheet, estimated from it: rotor inertia.
How this motor is made
Full manufacturing overview: IEC Three-phase Induction Motor (frames 80–160, IE3) →- 1. Lamination stamping & stator core stacking
- 2. Rotor die-casting
- 3. Rotor shaft fitting & turning
- 4. Rotor balancing
- 5. Slot insulation
- 6. Coil winding & insertion
- 7. Connection, lacing & forming
- 8. Stator in-process test
- 9. Impregnation & curing
- 10. Frame & end-shield machining
- 11. Final assembly & painting
- 12. Routine & efficiency test
Export certification: Motor for high-voltage drives
- Rated power
- 4 kW
- Rated torque
- 26.6 N·m
- Rated speed
- 1435 rpm
- Efficiency
- 88.6 % · IE3
Performance curves
Electromagnetic torque
Derived with the Kloss formula from rated slip and breakdown-torque ratio; the low-speed region may deviate from the catalogue locked-rotor torque (2.2×).
Full specifications
General
- Motor type
- AC Induction Motor
- Series
- Hengshui YE3 IE3
- Frame / flange
- IEC 112M
Rated Values
- Rated voltage
- 380 V
- Rated power
- 4 kW
- Rated torque
- 26.6 N·m
- Rated speed
- 1,435 rpm
- Rated current
- 8.37 A
- Rated frequency
- 50 Hz
Performance
- Breakdown torque
- 61.2 N·m
- Synchronous speed
- 1,500 rpm
- Rated efficiency
- 88.6 %
- Power factor
- 0.82
- Locked-rotor torque ratio
- 2.2 ×
- Locked-rotor current ratio
- 7.8 ×
Electrical
Mechanical
- Rotor inertia
- 95 kg·cm²
- Body length
- 480 mm
- Shaft diameter
- 28 mm
- Weight
- 40 kg
- Power density
- 100 W/kg
- Protection
- IP55