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SWT01273 Trane OEM Replacement Furnace High Limit Switch 220°F Open

SWT01273 Trane OEM Replacement Furnace High Limit Switch 220°F Open

Low stock: 5 left

Regular price $73.99 USD
Regular price Sale price $73.99 USD
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Shipping calculated at checkout.

Quick Feature Highlights

  • Genuine OEM Replacement for Trane & American Standard systems.

  • 220°F High-Limit Trip for maximum overheat protection.

  • 3-Inch Insert length for accurate thermal sensing.

  • Auto-Reset at 190°F for seamless operation.

  • Direct Replacement for part numbers C340056P10 and SWT1273.

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Specifications

Product Details Specification

  • Brand: Trane / American Standard
  • Part Number: SWT01273
  • Description: Thermal Limit Switch
  • Open Temperature (Cut Out): 220°F
  • Close Temperature (Cut In): 190°F (30°F Differential)
  • Insert Length: 3.0 Inches
  • Electrical Rating: 5.8 FLA / 34.8 LRA @ 120V AC
  • Terminal Type: Quick Connect
  • Number of Poles: 1
  • Shipping Weight: 1.50 lbs
  • Resettable: Automatically resets

description

Trane / American Standard SWT01273 Genuine OEM Furnace Limit Switch (220°F / 3" Insert)


The Trane / American Standard SWT01273 is a high-limit safety switch designed for use in heavy-duty HVAC furnaces and commercial units. As a Genuine OEM component, it acts as a crucial safety shut-off mechanism that protects the system from overheating. This switch monitors operational temperatures and is calibrated to instantly break the electrical circuit to the gas valve if temperatures exceed 220°F. This action prevents heat exchanger damage and potential fire hazards. The 3-inch probe ensures accurate sensing within the plenum of high-BTU equipment. 


Key Features

  • Extreme Temperature Protection: Engineered to safely "Open" the circuit at 220°F, providing essential protection for the furnace heat exchanger.
  • Automatic Reset Function: The switch automatically "Closes" and allows the heating operation to restart once the internal temperature decreases to 190°F.
  • Durable OEM Construction: Built to rigorous Trane and American Standard specifications with a robust 5.8 FLA current rating at 120V AC.
  • Deep-Reach 3" Probe: Features a 3-inch insertion length for accurate, board- or surface-mounted temperature monitoring. 


Product Details Specification

  • Brand: Trane / American Standard
  • Part Number: SWT01273
  • Description: Thermal Limit Switch
  • Open Temperature (Cut Out): 220°F
  • Close Temperature (Cut In): 190°F (30°F Differential)
  • Insert Length: 3.0 Inches
  • Electrical Rating: 5.8 FLA / 34.8 LRA @ 120V AC
  • Terminal Type: Quick Connect
  • Number of Poles: 1
  • Shipping Weight: 1.50 lbs
  • Resettable: Automatically resets


🛠️ HVAC Depot Pro Tip

A limit switch operating at such a high range (L220-30F) is typically found in older or specific commercial-grade units where internal temperatures naturally run hotter. If your SWT01273 is tripping frequently, ensure there are no physical obstructions blocking the airflow immediately downstream of the heat exchanger, such as closed dampers or crushed ductwork. High static pressure is the most common cause of this high-limit tripping


Cross-Reference

  • Superseded Part:

    SWT01273, SWT1273
  • Legacy / Manufacturing Numbers:

    C340056P10, X13540649100, 270159845007
  • Drawing Number:

    X13541189-01
  • Rating ID:

    L220-30F (Indicating 220°F trip and 30°F differential). 


Model Compatibility

This limit switch is compatible with various Trane and American Standard high-efficiency furnaces and packaged units. Below are common compatible model prefixes; always verify the exact fit with your unit's data plate. 


Trane Models:

  • TUD: TUD060C936K1, TUD080C924B1, TUD1A060A9361AA, TUD1B080A9241AA, TUD2A060A9362AA
  • TUE: TUE060A936L1, TUE1A060A9361AA, TUE1A060A9361AC
  • TDD: Check data plate for specific TDD models.
  • CUB: CUB060A936C3, CUB1A060A9361AA


American Standard Models:

  • AUD: AUD060C936K1, AUD080C924B1, AUD080R936K5, AUD1A060A9361AA, AUD1B080A9241BA, AUD2A060A9362AB
  • AUE: AUE1A060A9361AA, AUE1A060A9361AC
  • ADD: Check data plate for specific ADD models. 


Ameristar / RunTru Models:

  • M801P060AU36AAA, M801P060AU36AAB

Specification

Refund policy

Refund & Return Policy

Last Updated: June 2026

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We recommend using a trackable shipping service and purchasing shipping insurance for higher-value items.

Return Address

HVAC Parts & Equipment Depot
1135 E Plano Parkway, Suite 8
Plano, TX 75074
United States

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Many HVAC products require installation by a licensed HVAC professional.

HVAC Parts & Equipment Depot is not responsible for damages resulting from improper installation, misuse, unauthorized modifications, or failure to follow manufacturer instructions.

Special Orders

Special-order products must be picked up within 30 days of purchase unless other arrangements have been approved.

Unclaimed special-order products may be returned to the manufacturer and may be subject to applicable restocking fees.

Contact Us

If you have questions regarding returns, refunds, or exchanges, please contact us:

HVAC Parts & Equipment Depot

Phone: (214) 734-5222
Email: support@tophvacparts.com

Michel & Siso are very knowledgeable and explain everything to where I could understand! Amazing experience! Thank you will always come here for any AC needs. Trustworthy and excellent customer service.

Celest G.
Verified Customer
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