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> Motors > AC Motors > Permanent Magnet AC (PMAC)

Permanent Magnet AC Motors (PMAC)

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Permanent Magnet AC (PMAC) motors provide a smaller footprint and higher efficiency at lower speeds and partial loads compared to standard AC induction motors. These motors are designed for use only with a VFD capable of controlling a PMAC motor, and cannot be controlled with an across-the-line motor starter.

General Purpose and Inverter Rated

Open Drip Proof

High-Performance Inverter Duty

Washdown

Severe Duty

IEC

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Permanent Magnet AC (PMAC)

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Permanent Magnet AC (PMAC) Motors

Permanent magnet AC motors (PMAC) provide a smaller footprint and higher efficiency even at lower speeds and partial loads, when compared with induction motors. PMAC motors can only be used with a VFD. Marathon SYMAX PMAC motors are a cost effective way to increase efficiency and reduce space requirements.

Operation with VFD only - cannot be used with an across-the-line starter
Sizes up to 10hp
230/460 VAC
6 pole, Interior Permanent Magnet (IPM) construction
25% to 40% efficiency improvement vs. standard induction motor
Maintains high efficiency under partial load
56 Frame - Premium Efficiency (IE3) ; 182 and larger frames - Super Premium Efficiency (IE4)
"Performance Matched" to all leading brands of PWM drives, guaranteeing years of trouble free operation
TENV/TEFC enclosures
Operational to 20:1 constant torque open-loop
Constant torque from 0 to base speed
Lower operating temperature for higher reliability
Superior low speed torque and excellent torque linearity
High power density (small footprint), low weight design
Three year warranty (through Regal)