Century Motors B171 Motor

The Century Motors B171 Motor is a high-performance 1/3 HP fan and blower motor engineered for demanding HVAC and industrial applications. Built with a NEMA 48 frame and a rugged rolled steel shell, this single-phase capacitor start motor delivers the high starting torque required for heavy-duty belt drive and direct drive systems. Operating at a nominal 3450 RPM, the B171 is a versatile multi-voltage motor supporting 115V or 208-230V configurations, making it a reliable HVAC blower motor replacement for contractors in the field.

Designed for longevity in commercial and residential environments, the B171 features a self-cooled, open drip-proof (ODP) enclosure and high-grade ball bearings to ensure smooth operation in both horizontal and vertical positions. Its reversible rotation capability and cushion base mounting (resilient base) provide superior vibration dampening and installation flexibility. This unit serves as the direct replacement for HC41KE651 and is compatible with various pumps, conveyors, and air-handling equipment requiring a 1/2 inch diameter shaft and continuous duty performance.

• Direct Compatibility: Exact electrical and mechanical drop-in replacement for the HC41KE651 motor, reducing field modification time.
• High Efficiency Design: The capacitor start/induction run design provides the necessary torque to kickstart high-inertia loads without overheating.
• Flexible Power Options: Seamlessly handles 115/208-230Vac dual-voltage inputs at 6.2/3.4-3.1 Amps.
• Quiet Operation: The integrated resilient cushion base absorbs operational harmonics, critical for noise-sensitive indoor air handling units.
• Industrial Durability: Features Class A insulation and automatic thermal protection to safeguard the windings against transient overloads.

Common Professional Questions

Is the B171 reversible in the field?
Yes, the reversible rotation feature allows for easy lead changes to match the specific airflow requirements of your blower or fan assembly.

Can this motor be used in damp environments?
The open drip-proof (ODP) rating means it is protected against drops of liquid falling from up to 15 degrees from vertical, making it suitable for clean, indoor environments but not for direct exposure to heavy moisture or outdoor elements without a cover.

What are the shaft dimensions for coupling?
This motor comes equipped with a 1/2" diameter shaft that is 1.5 inches long with a flat, standard for NEMA 48 frame motors.

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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.