Description
Title:
YE4-250M-2 Low Voltage Three Phase AC Motor
Brief Introduction
Engineered to eliminate bearing damage from shaft currents, the 3000 rpm AC motor YE4-250M-2 integrates multi-path suppression technologies for critical industrial applications.
Pre-Operational Assurance System:
Insulation Integrity Verification: Provides dedicated test points for 1000VDC resistance measurements across stator and rotor windings, enabling precise polarization index (PI) validation per F-class standards.
Bearing Health Monitoring: Optimized access ports facilitate lubrication checks and abnormal noise detection in rolling/sliding bearings prior to restart.
Humidity & Contaminant Defense: Sealed IP-rated construction protects windings from moisture ingress and carbon dust accumulation that compromise insulation resistance.
Cooling Circuit Accessibility: Streamlined duct inspection points identify airflow obstructions or coolant leaks during system checks.
Slip Ring Serviceability: Quick-access brush compartments allow wear assessment and replacement without disassembly, maintaining surface contact integrity.
Advanced Shaft Current Control:
Magnetic Flux Optimization: Redesigned stator windings minimize axial flux leakage through computational electromagnetic optimization, reducing induced voltage sources.
Ceramic-Coated Shaft Isolation: Permanent insulating ceramic layers applied to shaft surfaces disrupt current paths between rotor and bearings of 3000 rpm AC motor, eliminating electrochemical degradation.
Hybrid Bearing Protection: Combines insulated bearing seats with accessible grounding brushes for dual-mode current diversion, adaptable to non-explosive environments.
Structural Integrity Enhancement: Reinforced stator-frame mounting prevents air-gap asymmetry during operation, suppressing vibration-induced circulating currents.
Maintenance protocols include dedicated inspection ports for carbon brush wear monitoring and ceramic coating integrity verification of 3000 rpm AC motor. Excludes high-cost fully insulated motor bearings through its layered isolation approach, achieving shaft current suppression in VFD-driven systems without compromising torque density or efficiency ratings.
Main Technical Parameters
| Frame: | H250 |
| Power Scope: | 280~315kW |
| Voltage: | 380V, 660V |
| Frequency: | 50Hz, 60Hz |
| Number of Poles: | 2P |
| Speed: | 2980rpm |
| Cooling Mechod | IC411 |
| Protection Grade | IP55 |
| Insulation Class | F(155℃) |
| Duty: | S1 |
| Mounting Type | B3 |
| Standard: | IEC |
| Efficiency Grade: | IE4 |
Why choose Simo Brand YE4 series of Motor?
The YE4 Series LV Motor has a high-strength cast iron frame, so it is very strong and has a longer service life. Anti-corrosion copper wire coils are not only more powerful but also have thermal protection, so they are safer to operate. The copper wires are evenly arranged, so they are not easy to deform even if the motor runs for a long time. The bearings have high torque and good responsiveness, stable output, and lower noise. In addition, the smaller size and energy-saving characteristics make it more popular.
Production Details
Technical Parameters
| Type | Rated Power
kW |
Rated Current
A |
Speed
r/min |
Efficiency
% |
Power Factor
Cosφ |
Locked Torque | Locked
Current |
Max. Torque | Rated torque
N•m |
No-load Noise
dB(A) |
Weight
Kg |
| Rated
Torque |
Rated
Current |
Rated Torque | |||||||||
| Asynchronous Speed 3000(r/min) | |||||||||||
| YE4-250M-2 | 55 | 98.5 | 2980 | 95.3 | 0.89 | 2.0 | 9.0 | 2.3 | 175 | 89 | 397 |
Frame
- Compact and robust iron casting frame
- Universal IEC and NEMA installation dimensions
- Customizable
Stator
- 99.9% pure copper winding for stator to ensure the output power and efficiency
- Excellent insulation system with 5 more processing flows
- All the windings are fitted in by handwork to ensure all slots are full and avoid any winding flaw.
Rotor
- Aluminum casting rotor with silicon steel rotor core to assure induction efficiency
- Precisely machined shafts with good capacity of strength and toughness
Testing
- All motors must pass the piece testing before painting and packaging
- Type tests will be regularly performed for each series, more often for new developed series and variants.
Package and delivery
- All motors will be packaged well before delivery
- Plastic cover inside, vacuum tin foil outer and then solid wood box
Applications
The YE3 Series LV Motor is commonly used to drive water pumps, compressors, conveyors and other transmission machinery in different areas.
Reviews
There are no reviews yet.