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Small cylindrical shaded-pole motor assembly with mounting tabs and wire leads

Tjernlund Products, Inc.

Tjernlund Products, Inc. 950-3020 Motor Assembly 1/25 hp 115V 550 RPM

SKU CH-X6BM-Y3G9Z

Replacement shaded-pole motor delivers 1/25 hp at 550 RPM on 115 V AC drawing 0.42 A in a 3.3 frame

  • Product typeRunner
  • Delivers reliable draft boosting with 1/25 hp shaded-pole motor
  • Runs on standard 115V AC household power at 0.42 A
  • Operates at 550 RPM for consistent airflow performance
  • Fits 3.3 frame dimensions for direct OEM replacement
  • Built by Tjernlund for dependable long-term operation

Direct-Draft Booster Motor

The Tjernlund 950-3020 is a shaded-pole motor assembly rated at 1/25 hp for 115 V AC single-phase supply. It turns at 550 RPM and draws 0.42 A at full load. The unit fits a 3.3 frame and serves as an OEM replacement for compatible draft-boosting equipment.

Replaces Worn Shaded-Pole Units

Install this assembly when the original motor fails to start, runs hot or no longer delivers rated torque. The jump is worth it if the existing housing and wiring match the 3.3 frame and 115 V supply. It restores rated airflow without modifying the mounting pattern.

Single-Phase Shaded-Pole Limits

Shaded-pole designs offer low starting torque and fixed 550 RPM speed with no internal speed control. Efficiency is modest, so the motor runs warm during continuous duty. It cannot reverse direction and is unsuitable for loads requiring variable speed or high breakaway torque.

How it compares

Measured against everything we stock in Fan Motors, Parts & Clip-On Fans, at today’s prices. Recalculated every night.

Price $116.99
Pricier than about 70% of the 473 comparable items (median $38.99).

Specifications

Product
Brand nameTJERNLUND
Product typeRunner

Questions about this item

Does the 3.3 frame motor align with my existing draft booster mounting points?

The assembly uses a standard 3.3 frame size designed as a direct OEM replacement for compatible Tjernlund draft booster housings.

How do I wire the 115V shaded-pole motor correctly?

Connect the two leads to a 115V AC supply; the shaded-pole design requires no capacitor or centrifugal switch, just verify rotation matches the original.

When should I plan to replace the sleeve bearings in this 550 RPM motor?

Sleeve bearings in shaded-pole motors typically run several years; listen for new noise or vibration and replace the assembly if lubrication no longer quiets it.

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