Baldor Motor M3538 Motor

The Baldor-Reliance M3538 is a heavy-duty general purpose industrial motor engineered for reliability in demanding commercial HVACR and pumping applications. This 1/2 HP three-phase motor operates at a 1725 RPM base speed (4-pole design) and is housed in a NEMA 56 frame with a resilient base for vibration damping. Designed for versatility, the M3538 features a dual-voltage 230/460V wind, drawing 1.8/0.9 amps at full load with a 1.25 service factor. The TEFC (Totally Enclosed Fan Cooled) enclosure provides superior protection against dust and moisture, making it ideal for belt-drive fans, blowers, and centrifugal pumps. High-grade ball bearings and Class F insulation ensure thermal stability under continuous duty cycles. For technicians, the oversized conduit box and clear lead markings simplify field wiring, while the squirrel cage rotor design delivers consistent torque performance across its operating range.

Key Performance Benefits

• NEMA 56 Frame: Features a standard 5/8-inch shaft diameter and resilient mounting for broad compatibility and reduced mechanical noise.
• TEFC Enclosure: Prevents ingress of contaminants, extending the service life of internal windings in non-hazardous environments.
• High Service Factor: A 1.25 SF allows for temporary overloads and provides a safety margin against voltage fluctuations.
• Energy Efficiency: Optimized three-phase 230-460v motor design reduces operational costs compared to single-phase alternatives.
• Durable Construction: Built with premium heavy-gauge steel and aluminum end shields for maximum structural integrity.

Common Technical Questions

What is the frame size and shaft dimension for the Baldor M3538?
This motor utilizes a standard NEMA 56 frame with a 5/8-inch diameter shaft, suitable for most industrial pulley and coupling setups.

Can this motor be used with a VFD (Variable Frequency Drive)?
Yes, the Baldor M3538 1/2 HP motor is compatible with most inverter-duty applications, though it is recommended to verify the specific frequency range for TEFC cooling requirements.

Is the rotation reversible on this 1725 RPM motor?
Yes, as a three-phase AC induction motor, rotation can be reversed by swapping any two power leads at the terminal connection.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.