Overview
The Trane SWT2685 is a genuine Original Equipment Manufacturer (OEM) limit switch designed for use in Trane Heating, Ventilation, and Air Conditioning (HVAC) systems. It functions as an inducer limit switch, primarily responsible for protecting HVAC equipment from over-temperature conditions by interrupting electrical circuits when temperatures exceed or fall below set limits. It is an automatic reset limit switch, operating within a specified temperature range.
Features
The key features of the Trane SWT2685 Limit Switch include:
- Function: Inducer Limit Switch.
- Operation: Automatic Reset.
- Contact Arrangement: Single Pole Single Throw (SPST).
- Enclosure Type: Exposed or Enclosed Bimetal Disc.
- Terminal Material: Tin Plated Brass.
- Standards: UL and CSA Recognized.
Specifications
- Part Number: SWT2685.
- Open Temperature: 155°F.
- Reset Temperature (Close Temperature): 95°F.
- Switch Tolerance: ±5°F Open; ±10°F Close.
- Voltage: 120V (VAC).
- Current Rating (FLA): 5.8A.
- Locked Rotor Current: 34.8A.
- Number of Poles: 1.
- Mounting Type: Airstream Mount.
- Shipping Weight: 0.15 lbs.
Applications
The Trane SWT2685 Limit Switch is used as a critical safety component in various Trane HVAC systems, such as furnaces or air handlers. Its main application is to monitor air temperatures, specifically as an inducer limit switch, to ensure the system functions within safe operating temperature limits. It is suitable for commercial and industrial applications where reliable temperature control and over-temperature protection are necessary.



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