Century Motors OCA3074 Motor

The Century Motors OCA3074 is a robust 3/4 HP replacement motor designed for demanding commercial HVACR applications. Operating at 1725 RPM, this three-phase motor provides high-torque performance across 208-230/460 Vac systems. Built with a 56Y Nema frame size and a rigid base, it offers a secure, vibration-resistant mount for stable long-term operation. The open drip proof (ODP) enclosure ensures maximum cooling efficiency in clean, dry environments, while the ball bearing construction supports both horizontal and vertical mounting configurations. This unit features reversible rotation and a standard 5/8" x 1 15/16" shaft, making it a versatile drop-in solution for a variety of air-moving equipment. As a direct HD54FK652 replacement, it eliminates the need for field modifications when servicing Carrier and BDP units, ensuring consistent electrical and mechanical compatibility for industrial contractors.

• Direct Replacement Compatibility: Specifically engineered to replace Carrier HD54FK652 and HD46GA800, ensuring zero-gap integration.
• Dual Voltage Versatility: Supports 230/460V three-phase power, allowing for use in diverse commercial and industrial electrical infrastructures.
• Thermal Protection: Includes an automatic reset thermal protector to prevent winding failure during temporary overload conditions.
• Durable Construction: Features rolled steel frame and sealed ball bearings for extended service life in high-cycle fan and blower applications.
• Installation Flexibility: The reversible rotation feature allows technicians to match existing fan pitch and airflow requirements on-site.

Is the OCA3074 compatible with variable frequency drives (VFDs)?
While this motor is designed for constant speed 1725 RPM operation, it is a standard three-phase induction motor; however, always verify the service factor of 1.15 and insulation class limits when considering inverter use.

Can this motor be used in outdoor condensing units?
This model has an Open Drip Proof (ODP) rating. It is intended for indoor or protected environments where it is shielded from direct rain and excessive moisture to prevent internal water damage.

What are the exact shaft dimensions for pulley alignment?
The motor is equipped with a 5/8 inch diameter shaft that is 1 15/16 inches long, providing ample surface area for secure pulley or blower wheel attachment.

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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.