SWT01257

The Trane SWT01257 furnace limit switch is a crucial component in ensuring the safe and efficient operation of your Trane heating system. This standard L160 switch, also known as the SWT1257 C340056P01, is designed to monitor the temperature of the furnace and prevent it from overheating.

The switch is constructed with high-quality materials to withstand the rigors of frequent use in a heating environment. It features a durable plastic housing that protects the internal components from damage. The switch is also equipped with a setscrew terminal block, which makes wiring connections easy and secure.

The Trane SWT01257 furnace limit switch is designed to work with Trane gas and oil furnaces, and it is interchangeable with SWT1257 and SWT1258 models. It is rated for a maximum voltage of 240 volts and a maximum current of 3.5 amps. The switch has three terminals: R, W, and Y. The R terminal is for the furnace call for heat, the W terminal is for the furnace fan, and the Y terminal is for the furnace compressor (for oil furnaces only).

The switch operates by using a bimetal element to monitor the furnace temperature. When the furnace reaches the set temperature, the bimetal element moves, closing the contacts and allowing the furnace to continue operating. If the furnace temperature rises above the set limit, the bimetal element moves further, opening the contacts and shutting off the furnace to prevent damage.

The Trane SWT01257 furnace limit switch is easy to install and replace. It comes with clear installation instructions, and the wiring connections are straightforward. The switch is also covered by Trane's limited warranty, ensuring that you are protected against manufacturing defects.

In summary, the Trane SWT01257 furnace limit switch is a reliable and essential component of your Trane heating system. It is designed to monitor furnace temperature and prevent overheating, ensuring safe and efficient operation. With its durable construction, easy installation, and Trane warranty coverage, this switch is a smart investment for any homeowner with a Trane furnace.

Trane SWT01257 Furnace Limit Switch: A Detailed Analysis

The Trane SWT01257 furnace limit switch is a crucial component of your heating system. This part is responsible for regulating the furnace temperature and preventing it from overheating. In this analysis, we will discuss the pros and cons of buying this Trane limit switch to help you make an informed decision.

1. OEM Part: The Trane SWT01257 is an original equipment manufacturer (OEM) part. This means it is designed and engineered by Trane to ensure optimal performance and compatibility with Trane furnaces.

2. Reliability: Trane is a reputable brand known for producing high-quality heating and cooling equipment. The SWT01257 limit switch is no exception. It is built to last and can withstand the rigors of continuous use.

3. Safety: A faulty limit switch can cause your furnace to overheat, leading to potential safety hazards. By using a genuine Trane part like the SWT01257, you can rest assured that your furnace will operate safely and efficiently.

4. Easy Installation: The Trane SWT01257 limit switch is designed for easy installation. If you are comfortable working on your furnace, you can likely install this part yourself, saving you the cost of hiring a professional.

1. Cost: Original equipment manufacturer parts like the Trane SWT01257 can be more expensive than aftermarket or generic alternatives. This price difference may deter some homeowners from choosing the OEM part.

2. Availability: Depending on your location and the availability of parts at your local HVAC supplier, you may have to wait a few days for the Trane SWT01257 limit switch to be delivered.

3. Compatibility: While the Trane SWT01257 is designed to fit most Trane furnaces, there may be some exceptions. Before purchasing, it is essential to verify that this part is compatible with your specific furnace model.

The Trane SWT01257 furnace limit switch is a reliable and essential component for maintaining the optimal performance and safety of your heating system. Although it may have a higher cost compared to aftermarket alternatives, the peace of mind and confidence in knowing you are using a genuine Trane part may be worth the investment for some homeowners. If you have a Trane furnace and require a new limit switch, the Trane SWT01257 is a solid choice.

If you are a Trane furnace owner and need a new limit switch, I would recommend considering the Trane SWT01257. The benefits of using an OEM part, such as compatibility, reliability, and easy installation, may outweigh the higher cost for you. However, before making a purchase, ensure that this part is compatible with your specific furnace model and that you have the necessary tools and skills to install it yourself or hire a professional if needed.

Details:

Specific furnace model's I've recovered this part from: - Trane model # tud120r9v5k4 aud120r9v5k4 used full tested and functional. Works this limit switch was recovered from a working furnace that decommissioned for upgrading. Trane American standard 3 limit switch 160 L160-30f C340056P01 SWT1257 SWT01257.

specifications centrafurn:

• brand: Trane
• mpn: Swt01257
• model: L160 Swt01257 Swt1257 C340056p01
• type: Central Furnace
• control style: Switch
• heating system: Furnace
• operating sound rating: Standard

general centrafurn:

• category: Home & Garden > Heating, Air > Cooling Systems > Central Furnaces

returns centrafurn:

• method: money back
• policy: returns accepted
• time: 30 days
• paid by: buyer

shipping centrafurn:

• class: standard
• type: fixed
• carrier: usps
• transit: 4-13 days
• service: usps ground advantage

payments centrafurn:

• credit card: mastercard
• wallet: google-pay
• other

seller centrafurn:

• city: bridgeview, illinois
• # reviews: 61
• rating: 98.0%

offer centrafurn:

• prices: $11.99–$86.24
• item condition:
  • New
  • Used
• options: ship-to-home
• in stock #: 5
• started: june 24, 2025
• best offers: true
• availability: in stock
• sold #: 18

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