Overview
The Broan NuTone 99080355 is an OEM replacement motor designed for bathroom exhaust fans and range hood ventilation systems. This single-phase AC induction motor delivers consistent airflow performance in residential and light commercial applications. Supplied as new, no-box condition, this unit is a verified drop-in replacement for Broan 503-series fan assemblies.
Key Features
- 120V single-phase, 60 Hz operation
- 3000 RPM permanent split capacitor (PSC) motor
- 1.5A rated current, low power draw
- Clockwise rotation (viewing from shaft end)
- Rigid mounting design for stable installation
- OEM Broan NuTone component—guaranteed fit for specified models
Technical Specifications
- Shaft diameter: 0.2178″ (approximately 7/32″)
- Shaft length: 1-1/4″
- Shaft feature: Flat with retaining ring spot
- Voltage: 120V AC, 60 Hz
- Current: 1.5 Amps
- Speed: 3000 RPM
- Rotation: CW (viewing from shaft end)
- Motor type: Single-phase AC induction
- Mounting: Direct flange mount
Typical Applications
- Bathroom exhaust fan motor replacement
- Range hood ventilation motor
- Kitchen exhaust fan systems
- Low-noise residential ventilation systems
Compatibility & Replacements
Compatible With
- Broan 503-B exhaust fan assembly
- Broan 503-C exhaust fan assembly
- Broan 503MG model fans
- Broan 8310-B ventilation unit
- NuTone 503-series exhaust fans
Replaces / Drop-In Replacement For
- OEM Broan NuTone motor assemblies in 503-series fans
- Worn or failed original equipment motors in compatible Broan/NuTone models
- Direct mechanical and electrical replacement—no adapter required
Works With
- Standard 120V residential AC electrical circuits
- Capacitor-start capacitor-run (CSCR) and permanent split capacitor (PSC) control schemes
- Single-pole single-throw (SPST) fan speed controls
- Ductwork systems sized for 3000 RPM fan blades
