Split Phase Belted Fan and Blower Motor, 1/3 HP, 115V

U.S. Motors 841CV – 1/3 HP MOTORBOSS Split Phase Belted Fan and Blower Motor, 115V, 1725 RPM

The U.S. Motors 841CV is a 1/3 horsepower, single-phase, split phase motor designed for belted fan and blower applications. Featuring a 48-frame open drip-proof (ODP) construction, this motor is suitable for air-moving equipment where belt-driven operation is required. The motor includes standard industrial features for HVAC and light commercial environments, including a resilient base, reversible rotation, and Class B insulation.

It operates at 115 volts and delivers 1725 RPM at 60 Hz. The motor is equipped with an automatic reset thermal overload protector for added safety in continuous duty applications. The 1/2-inch diameter shaft and 1.6-inch length support a wide range of pulley-mounted configurations.

Key Performance Features

• ✅ Split Phase Motor Design – Provides reliable starting torque suitable for direct-coupled fan and blower systems.
• ✅ Reversible Rotation – Clockwise or counterclockwise rotation for application-specific airflow direction.
• ✅ Thermal Overload Protection – Internal automatic reset safeguard protects windings from overheating.
• ✅ Resilient Base – Rubber isolation mounting reduces vibration transmission to base frame.
• ✅ Open Drip Proof Housing – Designed for ventilated indoor environments to allow cooling airflow over windings.

Technical Specifications

• Model: 841CV
• Horsepower: 1/3 HP
• Voltage: 115V, 1 Phase
• Full Load Amps: 6.4 A
• Frequency: 60 Hz
• Speed: 1725 RPM
• Frame Size: 48
• Insulation Class: B
• Ambient Rating: 40°C
• Shaft Diameter: 1/2 inch
• Shaft Length: 1.6 inch
• Enclosure Type: Open Drip Proof (ODP)
• Mounting: Resilient base, horizontal mount

Installation Requirements

Installation must comply with NEC and local code requirements. This motor is intended for use in horizontal mount, open ventilation systems and should be installed by qualified personnel with experience in HVAC belt-driven assemblies. Wiring should be performed with appropriate gauge copper conductors and conduit termination through the pre-threaded connection port. Shaft rotation and alignment should be verified before belt tensioning and operation.

Application Scope

Used in air handlers, ventilators, exhaust fans, and unit heaters that require external fan drive systems. Appropriate for commercial mechanical rooms, fan cabinets, and service replacements in legacy equipment where frame compatibility and shaft size are critical to direct substitution.

Contractor Advantages

• ✅ Standard Frame Compatibility – Replaces most 48-frame 1/3 HP belted fan motors in HVAC systems.
• ✅ Field Reversible – Rotation can be adapted on-site for both CCW and CW system designs.
• ✅ Thermally Protected – Built-in safety features reduce damage risk from motor stalls or overloads.
• ✅ Quick Mount Configuration – Resilient base and accessible leads simplify field retrofit installation.