621710 Nordyne 5.5" Blower Motor 1/3HP 115V 3-Speed
621710 Nordyne 5.5" Blower Motor 1/3HP 115V 3-Speed
Product Description
This direct-drop replacement blower motor delivers 1/3 horsepower performance in a compact 5.5-inch housing with three selectable speeds. Designed for 115 VAC residential gas furnaces and air handlers, it features a permanent-split capacitor winding, integrated thermal overload protection, and a color-coded lead harness (black-high, blue-medium, red-low). The factory-balanced steel frame and precision-machined shaft ensure quiet, reliable airflow across OEM blower assemblies.
Key Features
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1/3 HP permanent-split capacitor (PSC) motor
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Three speeds via color-coded leads: high (black), medium (blue), low (red)
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115 VAC, 60 Hz operation drawing 6.0 A at high speed
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6-pole design for stable torque at ~1 075 RPM
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5.5 ″ housing diameter × 4 ″ depth
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1/2 ″ × 4 ″ steel shaft, CCW rotation (viewed from shaft end)
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Built-in auto-reset thermal overload protector
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Pre-attached wiring harness for fast plug-and-play swap
Technical Specifications
| Specification | Details |
|---|---|
| Horsepower | 1/3 HP (0.33 HP) |
| Voltage | 115 VAC ±10 % |
| Frequency | 60 Hz |
| Full-Load Amps (FLA) | 6.0 A (high speed) |
| Speeds | High / Medium / Low |
| Speed (High) | ~1 075 RPM |
| Pole Count | 6 poles |
| Housing Diameter × Depth | 5.5 ″ × 4 ″ |
| Shaft | 1/2 ″ diameter × 4 ″ length |
| Rotation | Counterclockwise viewed from shaft end |
| Thermal Protection | Internal auto-reset overload |
| Frame Material | Steel, factory-balanced |
Compatibility
Fits Nordyne and OEM furnaces and air handlers originally equipped with a 5.5″, 1/3 HP, 3-speed blower motor. Always verify nameplate data before ordering.
| Furnace Model | Capacity | Frame & Speed | Shaft & Rotation |
|---|---|---|---|
| G9MA036A1 | 3 Ton / 36 MBH | 5.5″ 3-speed | 1/2″ × 4″ shaft, CCW |
| G9MA048B1 | 4 Ton / 48 MBH | 5.5″ 3-speed | 1/2″ × 4″ shaft, CCW |
| G9MP060A1 | 5 Ton / 60 MBH | 5.5″ 3-speed | 1/2″ × 4″ shaft, CCW |
| G9MP090A1 | 7.5 Ton / 90 MBH | 5.5″ 3-speed | 1/2″ × 4″ shaft, CCW |
| E9MH040B3 (Coleman) | 3 Ton / 40 MBH | 5.5″ 3-speed | 1/2″ × 4″ shaft, CCW |
| G8QA080E (Intertherm) | 5 Ton / 80 MBH | 5.5″ 3-speed | 1/2″ × 4″ shaft, CCW |
| G9QC050A1 (Concord) | 4 Ton / 50 MBH | 5.5″ 3-speed | 1/2″ × 4″ shaft, CCW |
Nordyne 3 speed blower motor, 1/3 hp, 1075 RPM, 115V, 6.0A. Shaft size 1/2" x 4.00". Housing is 5.5" diameter x 4" deep. Wiring is black-high, blue-medium, red-low, browns-capacitor. Rotates counter clockwise when viewing from back of motor (CCWLE). Requires a 5/370V run capacitor PRC5A (not included). Replaces 6217100.