Description
EP-YD Multi-Speed Motor
EP-YD-132M-4/2
EP-YD-132M-4/2: 6.5/8.0 kW, 1450/2890 r/min. Pole-changing multi-speed three-phase asynchronous motors using stator-winding connection changes for discrete speeds; configured with matched transmission components when required.

Working Range
In a replacement project, EP-YD-132M-4/2 is considered as a discrete pole-changing speed operation selection with efficiency 84/80%. The useful engineering question is how that operating point behaves in machine tools, textile machinery, mining equipment and stepped-speed drives. Record the driven-machine load and output speed first, then check vibration 1.8 mm/s against the actual supply and duty. A motor row becomes meaningful only when those values are attached to the machine it will run.
Destination country belongs in the technical record. A motor that is mechanically suitable may still sit inside a different efficiency, marking or conformity scope in the United States, European Union, Japan, Brazil, Mexico or another market. Separate that regulatory check from the machine calculation so later maintenance can reproduce the original condition. The two documented speeds are discrete operating points created by the winding/pole arrangement, which is a different design decision from continuous VFD speed control.
Process Fit
When the drive is assembled, EP-YD-132M-4/2 is considered as a discrete pole-changing speed operation selection with noise 91 dB(A). The useful engineering question is how that operating point behaves in machine tools, textile machinery, mining equipment and stepped-speed drives. Record the driven-machine load and output speed first, then check rated output 6.5/8.0 kW against the actual supply and duty. A motor row becomes meaningful only when those values are attached to the machine it will run.
The mechanical review should include gearboxes, couplings, pulleys, shafts and machine transmissions. In this model size, do not assume that matching power guarantees a matching shaft or flange. Confirm the drawing, bore, key, shaft engagement and guard space so later maintenance can reproduce the original condition.
Drive Package
During technical review, EP-YD-132M-4/2 is considered as a discrete pole-changing speed operation selection with vibration 1.8 mm/s. The useful engineering question is how that operating point behaves in machine tools, textile machinery, mining equipment and stepped-speed drives. Record the driven-machine load and output speed first, then check reference speed 1450/2890 r/min against the actual supply and duty. A motor row becomes meaningful only when those values are attached to the machine it will run.
For purchasing, state whether EP-YD-132M-4/2 is a new OEM selection, an interchange or part of an efficiency retrofit. That context decides which dimensions are fixed and which can change. Keep gearboxes, couplings, pulleys, shafts and machine transmissions inside the same scope so procurement can compare equal technical scopes.
Protection Strategy
For an OEM buyer, EP-YD-132M-4/2 is considered as a discrete pole-changing speed operation selection with rated output 6.5/8.0 kW. The useful engineering question is how that operating point behaves in machine tools, textile machinery, mining equipment and stepped-speed drives. Record the driven-machine load and output speed first, then check rated current 13.8/17.1 A against the actual supply and duty. A motor row becomes meaningful only when those values are attached to the machine it will run.
If the machine speed is created through reduction, calculate the complete ratio from motor shaft to driven shaft. A gearbox, sprocket or pulley can change both speed and shaft loading. The drawing should show where gearboxes, couplings, pulleys, shafts and machine transmissions connect to EP-YD-132M-4/2 so procurement can compare equal technical scopes. The two documented speeds are discrete operating points created by the winding/pole arrangement, which is a different design decision from continuous VFD speed control.
Assembly Review
At commissioning, EP-YD-132M-4/2 is considered as a discrete pole-changing speed operation selection with reference speed 1450/2890 r/min. The useful engineering question is how that operating point behaves in machine tools, textile machinery, mining equipment and stepped-speed drives. Record the driven-machine load and output speed first, then check efficiency 84/80% against the actual supply and duty. A motor row becomes meaningful only when those values are attached to the machine it will run.
Vibration 1.8 mm/s is a useful catalog reference, but commissioning should create a site baseline under a known load. Note current, temperature and visible vibration at the same time. If a gearbox or chain stage is part of the drive, record its condition too so procurement can compare equal technical scopes.
Export Project
Under steady production duty, EP-YD-132M-4/2 is considered as a discrete pole-changing speed operation selection with rated current 13.8/17.1 A. The useful engineering question is how that operating point behaves in machine tools, textile machinery, mining equipment and stepped-speed drives. Record the driven-machine load and output speed first, then check noise 91 dB(A) against the actual supply and duty. A motor row becomes meaningful only when those values are attached to the machine it will run.
Destination country belongs in the technical record. A motor that is mechanically suitable may still sit inside a different efficiency, marking or conformity scope in the United States, European Union, Japan, Brazil, Mexico or another market. Separate that regulatory check from the machine calculation so procurement can compare equal technical scopes.
Commissioning Data
Before the drawing is released, EP-YD-132M-4/2 is considered as a discrete pole-changing speed operation selection with efficiency 84/80%. The useful engineering question is how that operating point behaves in machine tools, textile machinery, mining equipment and stepped-speed drives. Record the driven-machine load and output speed first, then check vibration 1.8 mm/s against the actual supply and duty. A motor row becomes meaningful only when those values are attached to the machine it will run.
The mechanical review should include gearboxes, couplings, pulleys, shafts and machine transmissions. In this model size, do not assume that matching power guarantees a matching shaft or flange. Confirm the drawing, bore, key, shaft engagement and guard space so procurement can compare equal technical scopes.
Fault Indicators
When a gearbox is added, EP-YD-132M-4/2 is considered as a discrete pole-changing speed operation selection with noise 91 dB(A). The useful engineering question is how that operating point behaves in machine tools, textile machinery, mining equipment and stepped-speed drives. Record the driven-machine load and output speed first, then check rated output 6.5/8.0 kW against the actual supply and duty. A motor row becomes meaningful only when those values are attached to the machine it will run.
For purchasing, state whether EP-YD-132M-4/2 is a new OEM selection, an interchange or part of an efficiency retrofit. That context decides which dimensions are fixed and which can change. Keep gearboxes, couplings, pulleys, shafts and machine transmissions inside the same scope so later maintenance can reproduce the original condition.
Field Replacement
For maintenance planning, EP-YD-132M-4/2 is considered as a discrete pole-changing speed operation selection with vibration 1.8 mm/s. The useful engineering question is how that operating point behaves in machine tools, textile machinery, mining equipment and stepped-speed drives. Record the driven-machine load and output speed first, then check reference speed 1450/2890 r/min against the actual supply and duty. A motor row becomes meaningful only when those values are attached to the machine it will run.
If the machine speed is created through reduction, calculate the complete ratio from motor shaft to driven shaft. A gearbox, sprocket or pulley can change both speed and shaft loading. The drawing should show where gearboxes, couplings, pulleys, shafts and machine transmissions connect to EP-YD-132M-4/2 so later maintenance can reproduce the original condition.
Final Specification
For this model, EP-YD-132M-4/2 is considered as a discrete pole-changing speed operation selection with rated output 6.5/8.0 kW. The useful engineering question is how that operating point behaves in machine tools, textile machinery, mining equipment and stepped-speed drives. Record the driven-machine load and output speed first, then check rated current 13.8/17.1 A against the actual supply and duty. A motor row becomes meaningful only when those values are attached to the machine it will run.
Noise 91 db(a) is a useful catalog reference, but commissioning should create a site baseline under a known load. Note current, temperature and visible vibration at the same time. If a gearbox or chain stage is part of the drive, record its condition too so later maintenance can reproduce the original condition.
Technical Parameters
The table below carries the documented data for this selected variant. Fields not documented for the row are not filled with approximate values.
| Parameter | Value |
|---|---|
| Model | EP-YD-132M-4/2 |
| Series | EP-YD Multi-Speed Motors |
| Rated Output | 6.5/8.0 kW |
| Rated / Reference Speed | 1450/2890 r/min |
| Rated Current | 13.8/17.1 A |
| Efficiency | 84/80% |
| Power Factor | 0.85/0.89 |
| Vibration | 1.8 mm/s |
| Noise | 91 dB(A) |
| Locked-Rotor Current | 6.5/7× |
| Locked-Rotor Torque | 1.7/1.8× |
Frequently Asked Questions
What is the rated output of EP-YD-132M-4/2?
6.5/8.0 kW
What speed is listed for EP-YD-132M-4/2?
1450/2890 r/min
Which transmission parts can be reviewed with it?
Typical paired components include gearboxes, couplings, pulleys, shafts and machine transmissions. Final compatibility is checked from the machine drawing and duty.
Can this motor be used in any country?
No universal claim is made. Destination efficiency, marking and conformity requirements must be checked for the exact configuration.
What should I send for a replacement?
Send nameplate data plus shaft diameter and extension, key, foot or flange pattern, frame or shaft height, envelope and the driven connection.
What commissioning data is useful?
Record current, temperature, noise and vibration under a known load. The selected row lists 13.8/17.1 A, 91 dB(A) and 1.8 mm/s where documented, providing reference values for comparison rather than replacing a site baseline.
Quote EP-YD-132M-4/2
Send the driven-machine duty, required output speed or gearbox ratio, supply, mounting, environment and destination country. Include any gearbox, coupling, chain, sprocket or pulley in the scope so the interfaces can be reviewed together.

