Marathon Motors 125100000 Belted Fan Motor 3/4 Hp 1075 Rpm

Product Description

The MARATHON MOTORS 125100000 is a 3/4 HP capacitor-start belted fan motor built for single-phase, 208-230 volt, 60 Hz systems running at 1075 RPM. Housed in an open air-over body with a 56Z frame and resilient mounting with base, this motor is designed for reliable performance in commercial and residential HVAC belt-drive fan applications. Ball bearings support the load, and the reversible shaft rotation adds flexibility during installation. At 29.85 pounds with a shaft size of 5/8 inches flat by 3 inches, it is engineered for direct OEM-style replacement or new belt-drive installations.

This motor is suited for belt-drive blower and fan assemblies found in forced-air HVAC units, commercial air handlers, and ventilation systems requiring a single-phase capacitor-start configuration. The 56Z frame and resilient base mounting make it compatible with standard motor mounting arrangements common in light commercial and residential equipment. Licensed HVAC technicians and mechanical contractors typically handle installation, particularly in systems requiring motor replacement or retrofit upgrades.

Key Features

• 3/4 HP capacitor-start design provides strong starting torque for belt-drive fan loads
• 208-230 volt, single-phase, 60 Hz operation draws 3.9-3.6 amps
• 1075 RPM single-speed output matched to standard belt-drive fan applications
• 56Z frame with resilient base mounting for straightforward drop-in replacement
• Reversible shaft rotation allows flexible installation configurations
• Open air-over body with ball bearings for durability in moving-air environments
• Made in USA

Compatibility

Designed as an OEM-style replacement for belt-drive fan and blower applications using a 56Z frame, single-phase capacitor-start motor in 208-230 volt HVAC and ventilation systems.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified mechanical contractor. Disconnect and lock out all electrical power before removing the existing motor or making any wiring connections. Verify that drive belt tension and pulley alignment meet equipment manufacturer specifications before returning the system to service. Follow all applicable local and national codes, including NEC requirements for motor branch circuit protection and disconnecting means.

Technical Specifications

• Horsepower: 3/4 HP
• Voltage: 208-230 volts
• Phase: Single phase
• Frequency: 60 Hz
• Amperage: 3.9-3.6 amps
• Speed: 1075 RPM, 1-speed
• Motor Type: Capacitor Start
• Frame: 56Z
• Mounting: Resilient with base
• Bearing Type: Ball
• Body Type: Open air-over
• Rotation: Reversible
• Shaft Size: 5/8 inches flat x 3 inches
• Motor Length Less Shaft: 9.75 inches
• Overall Length: 12.75 inches
• Weight: 29.85 pounds
• Country of Origin: USA

Standard Information

• Brand: MARATHON MOTORS
• Manufacturer Part Number: 125100000