Two-Speed Motors
Omega two-speed motors: Dahlander or two-winding three-phase motors for constant or variable torque loads, frames 80–355.
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- Brand
- Omega Motor
- Product group
- Electric Motors
Omega two-speed motors are three-phase motors that can switch their output speed and power between two steps. Separate designs are available for constant-torque loads and for variable-torque loads such as fans and pumps, where torque changes with the square of the speed.
Dahlander windings allow only a 1:2 speed ratio. With two separate windings, other ratios such as 2/6, 4/6 or 6/8 are possible in addition to 1:2. Omega builds multi-speed motors in every frame size from 80 to 355, and the rated output depends on the chosen speed combination.
Applications
- Heating ventilation and air conditioning (HVAC)
- Ventilation fans
- Machines requiring different speed steps
Technical specifications
- Frame sizes
- 80 – 355
- Winding type
- Dahlander (1:2) or two separate windings
- Speed ratios
- 1:2, 2/6, 4/6, 6/8 and others
- Load type
- Constant torque or variable (quadratic) torque
- Voltage
- 400 V and other common voltages
- Frequency
- 50 / 60 Hz
- Protection class
- IP55 (IP56, IP65 optional)
Related products
Standard Motors
Omega IE3 and IE4 squirrel-cage three-phase induction motors in frames 80–355, 0.55–500 kW, for direct-on-line (DOL) operation.
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Compact Motors
Omega compact motors: IE3 three-phase motors delivering the standard rated output in one frame size smaller, frames 80–315, 1.5–250 kW.
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Single-Phase Motors
Omega single-phase motors: permanent-capacitor designs for low vibration and noise, frames 80–112, 2 and 4 poles.
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Forced-Cooled Motors
Omega forced-cooled motors: IE3 / IE4 three-phase motors with an independent fan for inverter-driven variable-speed duty, frames 80–355.
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