MARS 20581 Motor

The MARS 20581 is a professional-grade 460V direct drive blower motor designed for high-demand residential and commercial air handling applications. This multi-HP motor offers a flexible power range of 3/4 HP to 1/2 HP, allowing technicians to consolidate inventory while maintaining high performance across various furnace and air conditioning units. Operating at a synchronous 1075 RPM with two distinct speed taps, it provides the precise airflow control required for optimized system efficiency. The motor features a single-phase, permanent split capacitor (PSC) design with a 5.6-inch NEMA 48 frame, ensuring a standard fit for most belly band or stud-mount configurations. Built for durability in demanding environments, it includes all-angle ball bearings, Class B insulation, and automatic thermal overload protection. With reversible rotation (CW/CCW) and 36-inch leads, this condenser fan motor replacement is a reliable solution for contractors needing a versatile, high-voltage motor that withstands continuous duty cycles.

• Multi-Rating Versatility: High-efficiency 3/4-1/2 HP range simplifies replacement across multiple equipment brands.
• Enhanced Durability: Equipped with dual ball bearings and thermal protection for extended service life in high-ambient conditions.
• Universal Mounting: Features extended studs and 2-1/4 inch resilient rings for flexible installation in various air handler housings.
• Reversible Rotation: Easily switch between CW and CCW rotation to match specific OEM requirements in the field.

Common Questions

What capacitor is required for the MARS 20581?
This motor requires a 15 MFD / 370V capacitor (not included) for proper operation. Always verify the capacitor rating on the motor nameplate before installation.

Can this motor be mounted in any orientation?
Yes, the all-angle ball bearing system allows for horizontal, shaft-up, or shaft-down mounting, making it suitable for a wide range of blower and condenser applications.

Is the rotation difficult to change on the job site?
The motor features a simple reversing plug system, allowing technicians to change rotation quickly without dismantling the motor or complex rewiring.

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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.