FX12FK003 | 1/2 HP 1800 RPM 56C 575V 3 Phase TEFC, FLEX-IN-1 Marathon Electric Motor

FX12FK003 | 1/2 HP 1800 RPM 56C 575V 3 Phase TEFC, FLEX-IN-1 Marathon Electric Motor

The FX12FK003 is a versatile 1/2 HP Marathon Electric Motor designed to replace hundreds of discontinued or out-of-stock standard 56 frame motors, with or without C-face mounts. Ideal for industrial applications requiring a durable, inverter-duty motor with flexible mounting options.

Key Specifications

• Horsepower: 1/2 HP
• RPM: 1800
• Voltage: 575V
• Amperage: 0.95 amp
• Enclosure: TEFC (Totally Enclosed Fan Cooled)
• Frame / Diameter: 56C Frame with removable mounting base
• Rotation: Inverter Duty - 10:1 CT
• Bearings: Double-sealed ball bearings

Product Features & Fitment

This motor features Marathon’s patent-pending FLEX-IN-1™ multi-mount design, allowing rapid reconfiguration of the conduit box and repositionable bolt-on base for enhanced installation flexibility. The conduit box is rotatable 180° for 360° conduit entry, with multiple knockouts (7/8” & 1-1/8”) on all sides, and includes a gasket to maintain an IP44 or better enclosure rating.

The repositionable combination base supports NEMA 56, 56H, 143T, and 145T mounting patterns and can be rotated for NEMA F-2 or F-3 conduit box locations, with F-1 as the standard factory setting. Additional features include rotatable fan guard increments of 90° and cast-in end frame markings for easy identification of conduit box base locations, simplifying installation and reducing downtime.