Electric motor 3 kW 2900 rpm 3-phase 90B3 MS

MS three-phase electric motor 3 kW 2900 rpm 90B3

The MS three-phase electric motor rated 3 kW at 2900 rpm, made by Promotor, is a reliable drive solution for many industrial applications. This high-speed drive has a compact build of frame size 90 while maintaining optimum energy efficiency. Every unit undergoes rigorous quality tests, ensuring it is fully functional and ready for immediate operation.

Technical specification

What makes this drive worth a closer look? The MS 90B3 is built on a solid housing made of high-quality materials. The 24 mm diameter shaft ensures stable transmission of torque to the driven equipment. The product weighs 20 kg, which reflects the use of durable internal components. The three-phase stator winding works with a precisely balanced rotor, minimising vibration in operation even at maximum speed.

Applications and advantages

Why choose this motor? The MS drive unit performs very well in machines that require high speeds at medium power. The drive is used in:

• Medium-pressure industrial pumps
• Ventilation and air-conditioning systems
• Machine tools and grinders
• Belt and roller conveyors
• Air compressors

The Promotor MS three-phase electric motor is highly resistant to overload. The 90B3 design allows universal mounting in various mechanical configurations. The cooling system with an external fan effectively removes heat from the windings even during prolonged operation under load. Its new condition ensures trouble-free operation and full compliance with safety standards for drive equipment.