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A 132 kW electric motor is no longer a product easily carried on a desktop; it is usually a project item in the 315 frame class, weighing several hundred kilograms. Making the right choice in this power class does not end with a power and speed calculation; it requires that the 2 or 4 pole choice, crane lifting, starting method and lead time-shipping-commissioning plan all be set up from the start. In this guide we cover the entire supply chain of a high-power motor like 132 kW, from selection to delivery and field operation, from the viewpoint of manufacturer assurance and strong stock.
132 kW Motor: A Project Item in the 315 Frame Class
A 132 kW induction motor is generally built in the 315 frame size and weighs several hundred kilograms. This weight and size take the motor out of being a piece of equipment you "buy, pick up and carry away"; high-power motor supply turns into a logistics and engineering project. That is why, when a 132 kW motor is concerned, the purchasing decision alone is not enough; delivery, the crane plan, site placement and the commissioning process must be considered from the start.
In this power class, mechanical details such as the motor's frame size, mounting type (foot B3, flange B5 or combinations), shaft diameter and terminal box orientation must match the project exactly. A wrong shaft diameter or an incompatible mounting type can lead to re-supplying the motor and weeks of delay. That is why detailed technical agreement is essential for high-power motors.
2 Pole or 4 Pole? Speed, Starting Torque and Load Profile
One of the most critical technical decisions for a 132 kW motor is the number of poles. The 2 pole and 4 pole choice is set by speed, starting torque and load profile:
- 2 pole (about 3000 rpm): Preferred in applications requiring high speed; centrifugal pumps, high-speed fans and compressors.
- 4 pole (about 1500 rpm): Common in applications requiring medium speed and high starting torque; conveyors, crushers, mills and general drive applications.
The pole choice relates not only to speed but also to the load's starting character. In an application with high inertia or a loaded start, a 4-pole motor is generally more suitable because it provides higher starting torque. A wrong pole choice leads either to the machine running at an inadequate speed or to it struggling at start and tripping thermally. For this reason, the load profile must be clearly defined before the pole decision. For the right pole and power combination, you can request a project-based quote via electric motor prices.
Starting: Connecting a High-Power Motor to the Mains
When a large motor like 132 kW is connected directly to the mains (DOL), it draws a very high starting current. This high current both stresses the network and mechanically shakes the motor and connected equipment. That is why soft starters or frequency inverters (VFD) are generally used for high-power motors:
- Soft starter: Gradually limits the starting current and mechanical shock; suitable for fixed-speed applications.
- Frequency inverter (VFD): Provides both a soft start and the ability to adjust speed; preferred in applications needing variable load and energy savings.
The starting method must be planned together with the selection of the motor, because the motor's terminal connection (star/delta), drive compatibility and protection elements depend on this decision.
Crane Lifting, Lead Time, Shipping and Commissioning Plan
For a high-power motor, supply does not end when the motor leaves the warehouse; it continues until it is safely placed and running on site. That is why the plan for a 132 kW motor must be set up from the start:
- Crane lifting: Lifting equipment and lifting lugs suited to the motor's weight must be planned.
- Lead time: Whether it is delivery from stock or a production lead time must be clarified at the project's start.
- Shipping: Due to weight and size, a special vehicle and loading plan may be required.
- Commissioning: Bearing setup, coupling alignment, direction-of-rotation check and starting tests are done on site.
When all these steps are planned in advance, the motor is commissioned without delay when it arrives on site. In an unplanned supply, the motor arrives but there is no crane, or the mounting type does not fit; every delay raises the project's cost.
Reducing Lead Time Risk With Manufacturer Assurance and Strong Stock
For high-power motors like 132 kW, the biggest risk is lead time. A manufacturer holding motors in common powers and frames in strong stock can deliver quickly without condemning the project to long production times. HEM Motor offers high-power motors with 2 and 4 pole options, in the mounting type and shaft structure suited to the project, with strong stock and manufacturer assurance. When lead time, crane plan and commissioning support are considered together, the high-power motor project is completed without surprises. To get a detailed quote for your project, review the electric motor prices page.
Frequently Asked Questions
Why should a 132 kW motor be treated as a project item?
Because a 132 kW motor is usually in the 315 frame class, weighing several hundred kilograms, it is no longer a simple purchase. It is a project item requiring crane lifting, starting and a lead time-shipping-commissioning plan to be set up from the start.
Should I choose 2 pole or 4 pole?
This choice is set by speed, starting torque and load profile. 2 pole is common in pumps and compressors needing high speed; 4 pole is common in conveyors, crushers and mills needing medium speed and high starting torque.
How is a high-power motor started?
When a 132 kW motor is connected directly to the mains, it draws a very high starting current. That is why a soft starter or frequency inverter (VFD) is generally used. The starting method must be planned upfront together with motor selection.
