Berko 3900-2002-507 Motor

The Berko 3900-2002-507 is a precision-engineered OEM replacement fan motor designed for high-performance operation in commercial unit heaters and cabinet unit heaters. Operating at 240/277V, this motor delivers a consistent 1550 RPM, ensuring optimal airflow and heat dissipation for Berko and Marley thermal systems. The Clockwise (CW) rotation is specifically calibrated for compatibility with standard blower wheel configurations found in the 3900 series. As a critical component for maintaining HVAC system integrity, this motor features a rugged construction capable of handling the high-duty cycles of industrial environments. Its electrical specifications match factory standards to ensure direct-fit compatibility, reducing installation time and preventing common alignment issues during field replacement. When replacing a failed HVAC blower motor, utilizing this specific Berko 3900 replacement part ensures that the original equipment manufacturer’s airflow curves and thermal protection standards are maintained without compromising the unit's mechanical lifespan or efficiency.

• Direct-Fit OEM Compatibility: Specifically engineered for the Berko 3900 series, eliminating the need for mounting modifications.
• Industrial Build Quality: Designed for 240/277V electrical systems commonly found in commercial heating applications.
• High-Speed Performance: Maintains a steady 1550 RPM to provide the static pressure required for effective heat distribution.
• Optimized Airflow: The CW shaft rotation is matched to factory fan blades for peak aerodynamic efficiency.

Common Questions

Is this motor compatible with 120V systems?
No, the Berko 3900-2002-507 is rated specifically for 240V or 277V circuits. Applying 120V will result in insufficient torque and motor failure.

How do I verify the rotation for my heater?
This motor features Clockwise (CW) rotation when viewing from the lead end. Always check your existing housing and fan blade pitch before installation.

Can this motor be used in other Marley or QMark units?
While often interchangeable across Marley brands (Berko, QMark), always verify the specific Marley part number against the manufacturer's cross-reference guide to ensure the frame size and shaft length match.

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.