What Motor Should You Use for Fans, Pumps, Machine Tools and Compressors? A Complete Guide to YE3 Series IE3 Three-Phase Induction Motors

YE3 series motors are IE3-efficiency three-phase induction motors for continuous-duty industrial drives. For fans, centrifugal pumps, machine tools, compressors and conveying equipment, select the power, pole count, voltage, mounting arrangement and protection class from the actual load and installation interface. The standard configuration is 380 V / 50 Hz, IP55, insulation class F and IC411 cooling; custom voltage, frequency, insulation and mounting arrangements are available on request.

View YE3 three-phase induction motors and request a quotation

Why choose a YE3 IE3 motor?

YE3 motors are designed for industrial energy efficiency and are specified in the supplied technical data as meeting IE3 efficiency requirements under GB18613-2020 and IEC 60034-30. IEC-standardized mounting dimensions help replace older Y, Y2 or Y3 motors where the driven equipment interface is compatible. Typical duties include fans, pumps, machine tools, compressors, conveyors and general machinery.

Before selecting a model, confirm ambient temperature (-15 to 40 C), altitude (up to 1000 m), supply voltage and frequency, duty cycle, required protection, insulation class, cooling, mounting and shaft alignment. Size the motor from the required shaft power with an appropriate 15-25% engineering margin, then verify starting torque and actual load conditions.

Representative YE3 motor performance data

The table below contains representative 2-pole, 4-pole, 6-pole and 8-pole models from the supplied technical file. Values are reference data; final model selection, drawings and performance data must be confirmed with HX before ordering.

Model	Rated power (kW)	Rated current 380 V (A)	Speed (r/min)	Efficiency (%)	Power factor	Locked-rotor torque / rated	Locked-rotor current / rated	Maximum torque / rated	Noise dB(A)	Weight (kg)
YE3-80M1-2	0.75	1.8	2855	77.4	0.82	2.5	7.0	2.3	62	16
YE3-90S-2	1.5	3.3	2865	81.3	0.84	2.2	7.6	2.3	67	20
YE3-100L-2	3.0	6.2	2875	84.6	0.87	2.2	7.8	2.3	74	34
YE3-132S2-2	7.5	14.5	2930	88.1	0.89	2.0	7.9	2.3	79	70
YE3-160M1-2	11	21	2950	89.4	0.89	2.0	8.1	2.3	81	112
YE3-180M-2	22	41.1	2950	91.3	0.89	2.0	8.2	2.3	83	180
YE3-200L1-2	30	55.7	2960	92.0	0.89	2.0	7.6	2.3	84	240
YE3-250M-2	55	101	2970	93.2	0.89	1.8	7.1	2.3	89	386
YE3-315L-2	200	360	2975	94.9	0.90	1.8	7.2	2.2	92	1150
YE3-355L-2	315	554	2975	95.0	0.91	1.6	7.2	2.2	100	1806
YE3-80M2-4	0.75	1.9	1425	79.6	0.76	2.3	6.6	2.3	56	18
YE3-100L1-4	2.2	4.75	1430	84.3	0.80	2.3	7.6	2.3	64	34
YE3-132S-4	5.5	11.6	1465	87.7	0.82	2.0	7.9	2.3	71	64
YE3-160M-4	11	21.3	1470	89.8	0.85	2.0	7.7	2.3	73	120
YE3-180M-4	18.5	36.3	1470	91.2	0.85	2.0	7.8	2.3	76	174
YE3-200L-4	30	58.1	1475	92.3	0.85	2.0	7.3	2.3	76	256
YE3-250M-4	55	104	1480	93.5	0.86	2.0	7.4	2.3	79	400
YE3-315M-4	132	238	1485	94.7	0.89	2.0	7.0	2.2	88	1090
YE3-355L-4	315	531	1490	95.1	0.90	2.0	7.1	2.2	95	1810
YE3-90S-6	0.75	2.1	935	75.9	0.71	2.0	6.0	2.1	57	21
YE3-112M-6	2.2	5.7	965	81.8	0.72	2.0	6.6	2.1	65	42
YE3-132M1-6	4	9.7	975	84.6	0.74	1.9	6.8	2.1	69	72
YE3-160M-6	7.5	16.8	975	87.2	0.78	2.0	7.0	2.1	70	112
YE3-200L1-6	18.5	38.9	980	90.4	0.80	1.9	7.3	2.1	73	226
YE3-250M-6	37	73.5	985	92.2	0.83	1.9	7.1	2.1	76	368
YE3-315L1-6	110	209	990	94.3	0.85	1.9	6.7	2.0	83	1120
YE3-355M2-6	200	372	990	95.0	0.86	1.9	6.8	2.0	85	1690
YE3-100L1-8	0.75	2.4	690	67.8	0.67	1.8	4.0	2.0	57	29
YE3-132M-8	3.0	7.9	710	73.8	0.73	1.8	6.0	2.0	67	77
YE3-160M1-8	4.0	10.3	720	73.9	0.73	1.9	6.0	2.0	71	118
YE3-200L-8	15	34.1	730	76.0	0.76	2.0	6.6	2.0	75	240
YE3-250M-8	30	74.0	740	79.9	0.79	1.9	6.6	2.0	78	446
YE3-280S-8	37	77.8	740	79.9	0.79	1.9	6.6	2.0	79	500
YE3-315S-8	55	111	745	81.8	0.81	1.8	6.6	2.0	82	700
YE3-355M1-8	132	261	745	82.8	0.82	1.8	6.4	2.0	89	1110

General technical specifications

Parameter	Specification
Series	YE3
Type	IE3 high-efficiency three-phase induction motor
Efficiency class	IE3 (GB18613-2020 Grade 3; IEC 60034-30)
Power range	0.18-430 kW
Frame range	H63-H400
Poles	2P / 4P / 6P / 8P
Rated voltage	380 V standard; 220-760 V available
Rated frequency	50 Hz standard; 60 Hz available
Protection	IP55
Insulation	Class F; Class H optional
Cooling	IC411
Duty	S1 continuous duty
Connection	Star up to 3 kW; delta from 4 kW
Ambient temperature	-15 to 40 C
Altitude	Up to 1000 m
Mounting	IM B3, IM B5, IM B35 for H63-355; IM B3 and IM B35 for H400
Core benefits	High efficiency, robust structure, low noise and IEC mounting dimensions

Materials and construction

Component	Standard material	Optional material	Notes
Frame and end shields	High-strength cast iron	-	Rigid structure and good heat dissipation
Stator winding	100% copper wire, class F insulation	Class H insulation	Efficient and heat resistant
Rotor	Die-cast aluminium squirrel cage	Copper cage by special order	Reliable, low-maintenance operation
Shaft	45# carbon steel	40Cr or stainless steel	Heat treated; select for high load or corrosive service
Bearings	Quality bearings	SKF / NSK / insulated bearings	Insulated bearings recommended for VFD duty
Fan cover	Steel plate	-	For IC411 cooling
Terminal box	Cast iron	Top, left or right position	Metal or plastic cable glands available
Coating	Industrial paint	Epoxy or special anticorrosion paint	For humid, hot or corrosive environments

Mounting arrangements and alignment

Mounting	Description	IM code	Typical application
B3	Foot-mounted, horizontal, no flange	IMB3	Horizontal pumps, fans, compressors and conveyors
B5	Flange-mounted, horizontal, no feet	IMB5	Vertical pumps and compact installations
B35	Foot and flange mounted, horizontal	IMB35	Heavy-duty pump drives

Keep the foundation level and foot holes aligned. Clean B5/B35 flange faces, align motor and driven shafts, and verify radial and angular alignment. A recommended alignment tolerance is 0.05 mm or less. Jog the motor to verify rotation before commissioning. For VFD operation, confirm insulation suitability and bearing-current protection.

Applications

Industry	Application	Recommended configuration	Key requirement
Fans	Centrifugal fans, axial fans, cooling-tower fans	YE3 + 4P/6P, B3/B5	Low noise, continuous duty
Pumps	Centrifugal, multistage and submersible pump drives	YE3 + 4P, B3/B5	IE3 efficiency, IP55
Machine tools	Lathes, milling machines, presses	YE3 + 2P/4P, B3/B5	Low vibration, precision
Compressors	Piston and screw compressors	YE3 + 4P, B3	High reliability, S1 duty
Material handling	Conveyors, elevators, hoists	YE3 + 4P/6P, B3	Robust structure, starting torque
Petrochemical	Process pumps and agitators	YE3 + 4P, B3/B35	IP55, anticorrosion coating
Steel and mining	Crushers, rolling mills, winches	YE3 + 4P/6P, B3/B35	Dust resistance, starting torque, wear resistance

Important use limitation

YE3 motors are intended for non-explosive environments. For coal mines or hazardous gas environments, select an appropriate explosion-proof motor such as a YBX3 or YB3 series model. Confirm VFD compatibility for inverter duty; insulated bearings are recommended for larger frames.

Technical FAQ

1. What is a YE3 motor? A YE3 motor is an IE3 high-efficiency three-phase induction motor described in the supplied data as compliant with GB18613-2020 and IEC 60034-30 efficiency requirements.
2. What service conditions apply? Standard conditions are -15 to 40 C, up to 1000 m altitude, 380 V supply, IP55, class F insulation, IC411 cooling and S1 duty. Voltage, frequency and insulation can be customized.
3. How is the model designation read? In YE3 132 S 1-2, YE3 is the series, 132 is center height in mm, S is frame-length code, 1 is core-length code and 2 is pole count.
4. What is the power and frame range? The supplied range is 0.18-430 kW in frame sizes H63-H400 with 2, 4, 6 and 8 poles.
5. What efficiency class is used? The supplied file specifies IE3 efficiency.
6. What protection and insulation are standard? IP55 and class F are standard; class H is optional.
7. What are the cooling and duty ratings? IC411 cooling and S1 continuous duty are standard.
8. Which mountings are available? IM B3, B5 and B35 are available for H63-H355; H400 is available in B3 and B35.
9. What voltage and frequency are available? 380 V / 50 Hz is standard. 220-760 V and 60 Hz are available by request.
10. Can YE3 motors run with a VFD? Yes, after confirming inverter-duty suitability; larger frames should use bearing-current protection such as insulated bearings.
11. Which applications are suitable? Fans, pumps, machine tools, compressors, conveyors and general industrial machinery.
12. How efficient are representative models? The supplied table lists 94.9% for YE3-315L-2, 95.0% for YE3-355L-2, 94.7% for YE3-315M-4 and 95.1% for YE3-355L-4.
13. What is the noise range? Representative data ranges from approximately 56 to 100 dB(A), depending on power and pole count.
14. What is the weight range? Representative weights range from approximately 16 to 1810 kg, depending on the frame and configuration.
15. Which parts require attention? Bearings, seals, fan cover and terminal box require routine inspection; VFD service may require insulated bearings.
16. What faults are common? Common causes include overload or poor ventilation causing overheating, lubrication or wear causing bearing heat, misalignment causing vibration, and loose fan covers or damaged bearings causing high noise.
17. Is a foundation required? Install on a rigid foundation designed for equipment weight and operating dynamic loads, with correctly tightened anchor bolts.
18. How should the motor be maintained? Inspect bearing lubrication, bolts, surface cleanliness, insulation resistance, terminal-box condition and cable sealing regularly.
19. What can be customized? Voltage, frequency, mounting, shaft extension, class H insulation, IP65, coating, PTC/PT100 and anti-condensation heaters can be specified.
20. How does YE3 differ from Y/Y2/Y3? The supplied specification positions YE3 as a higher-efficiency IE3 series with IP55 protection, class F insulation and IEC mounting dimensions.

Need a verified model? Send your equipment type, required speed, supply voltage, mounting, load power and operating conditions to our engineering team for a quotation and confirmed drawing.

Technical FAQ

What does IE3 mean for a motor buyer?

IE3 identifies a high-efficiency class under the applicable efficiency standard. The exact efficiency value depends on the rated power, poles and operating point.

How much spare power should I allow?

Allow enough for startup and the real duty, but avoid excessive oversizing. Oversizing can reduce efficiency and power factor at light load.

Authoritative references

For standards and energy guidance, see IEC standards and the U.S. Department of Energy motor systems guidance. Use the references as a starting point and confirm the exact edition required for your market.

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