Two-speed three-phase motors

Two speeds on a single shaft

Two-speed three-phase electric motors are the ideal solution for industrial applications that need two distinct rotation speeds on a single shaft. Thanks to their flexible configuration, they optimise production processes without complex external control systems, while ensuring reliability and robustness.

Technical specifications

IEC frame sizes	from 50 to 200
Mounting	foot-mounted B3 or flanged B5 and B14
Voltage	400 V 50 Hz
Brake version	on request

Winding types and speeds

1. Single winding (Dahlander)
Optimised for 1:2 speed ratios. Common combinations: 2/4 and 4/8 poles.

2. Two separate windings
Ideal for different speed ratios tailored to the application. Available combinations: 4/6 – 6/8, 2/6 – 2/8, 2/12 – 2/16, 4/16 – 4/32 poles.

Why choose our two-speed motors

• Operating efficiency: fast switching between speeds to suit different processing phases.
• Build quality: IEC standards for universal compatibility and long service life.
• Flexibility: can be fitted with electromagnetic brakes for full motion control.