Trane SWT3546 Pressure Switch
The Trane SWT3546 Pressure Switch (Mfr Part #: SWT03546) is a critical OEM replacement part engineered for precise low-side monitoring in Trane and American Standard HVAC units. This single pole, single throw (SPST) switch features a calibrated open pressure of 50 psig and a close pressure of 70 psig, effectively preventing compressor slugging and long-term damage due to low refrigerant charge or restricted airflow. Designed for HVAC repair professionals, this low pressure switch is rated for 120/240 VAC and 28 VDC at 8 amps, ensuring reliable electrical switching in residential packaged units and commercial RTUs. Whether you are performing an AC service or a heat pump repair, replacing a failing refrigerant pressure sensor with this genuine component maintains system integrity and prevents nuisance HVAC compressor lockouts.
Key Benefits- Precise Pressure Response: Calibrated at OP50# CL70 to ensure the system shuts down immediately under low-pressure conditions, protecting the compressor from overheating.
- OEM Compatibility: A direct-fit replacement pressure switch for popular models including 4YCC, 4TCC, and 4YCX series units, eliminating the need for field modifications.
- Heavy-Duty Contacts: Features an 8A amperage rating and pilot-duty power ratings (up to 375 VA), providing superior durability over generic aftermarket equivalents.
- System Security: Acts as a primary safety control, preventing the refrigeration cycle from operating during a loss of charge, which extends the overall lifespan of the system.
What causes a Trane low pressure switch to trip?
Tripping is typically triggered by a loss of refrigerant, a restricted filter drier, or a frozen evaporator coil. If the pressure drops below 50 psig, the Trane SWT3546 opens the circuit to stop the compressor.
Can I use a universal switch as an alternative?
While universal switches exist, using a genuine Trane SWT03546 ensures the 50/70 PSI setpoints remain accurate to the manufacturer's specification, preventing false trips or delayed responses that could lead to motor failure.
Does this switch require manual resetting?
This specific SPST pressure switch is designed to cycle based on pressure. It closes again once the pressure rises back to 70 psig, though a lockout may still be recorded by the main control board for diagnostic review.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $44.14
-65%$44.14
$15.45Trane SWT3546 Pressure Switch
The Trane SWT3546 Pressure Switch (Mfr Part #: SWT03546) is a critical OEM replacement part engineered for precise low-side monitoring in Trane and American Standard HVAC units. This single pole, single throw (SPST) switch features a calibrated open pressure of 50 psig and a close pressure of 70 psig, effectively preventing compressor slugging and long-term damage due to low refrigerant charge or restricted airflow. Designed for HVAC repair professionals, this low pressure switch is rated for 120/240 VAC and 28 VDC at 8 amps, ensuring reliable electrical switching in residential packaged units and commercial RTUs. Whether you are performing an AC service or a heat pump repair, replacing a failing refrigerant pressure sensor with this genuine component maintains system integrity and prevents nuisance HVAC compressor lockouts.
Key Benefits- Precise Pressure Response: Calibrated at OP50# CL70 to ensure the system shuts down immediately under low-pressure conditions, protecting the compressor from overheating.
- OEM Compatibility: A direct-fit replacement pressure switch for popular models including 4YCC, 4TCC, and 4YCX series units, eliminating the need for field modifications.
- Heavy-Duty Contacts: Features an 8A amperage rating and pilot-duty power ratings (up to 375 VA), providing superior durability over generic aftermarket equivalents.
- System Security: Acts as a primary safety control, preventing the refrigeration cycle from operating during a loss of charge, which extends the overall lifespan of the system.
What causes a Trane low pressure switch to trip?
Tripping is typically triggered by a loss of refrigerant, a restricted filter drier, or a frozen evaporator coil. If the pressure drops below 50 psig, the Trane SWT3546 opens the circuit to stop the compressor.
Can I use a universal switch as an alternative?
While universal switches exist, using a genuine Trane SWT03546 ensures the 50/70 PSI setpoints remain accurate to the manufacturer's specification, preventing false trips or delayed responses that could lead to motor failure.
Does this switch require manual resetting?
This specific SPST pressure switch is designed to cycle based on pressure. It closes again once the pressure rises back to 70 psig, though a lockout may still be recorded by the main control board for diagnostic review.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Trane SWT3546 Pressure Switch (Mfr Part #: SWT03546) is a critical OEM replacement part engineered for precise low-side monitoring in Trane and American Standard HVAC units. This single pole, single throw (SPST) switch features a calibrated open pressure of 50 psig and a close pressure of 70 psig, effectively preventing compressor slugging and long-term damage due to low refrigerant charge or restricted airflow. Designed for HVAC repair professionals, this low pressure switch is rated for 120/240 VAC and 28 VDC at 8 amps, ensuring reliable electrical switching in residential packaged units and commercial RTUs. Whether you are performing an AC service or a heat pump repair, replacing a failing refrigerant pressure sensor with this genuine component maintains system integrity and prevents nuisance HVAC compressor lockouts.
Key Benefits- Precise Pressure Response: Calibrated at OP50# CL70 to ensure the system shuts down immediately under low-pressure conditions, protecting the compressor from overheating.
- OEM Compatibility: A direct-fit replacement pressure switch for popular models including 4YCC, 4TCC, and 4YCX series units, eliminating the need for field modifications.
- Heavy-Duty Contacts: Features an 8A amperage rating and pilot-duty power ratings (up to 375 VA), providing superior durability over generic aftermarket equivalents.
- System Security: Acts as a primary safety control, preventing the refrigeration cycle from operating during a loss of charge, which extends the overall lifespan of the system.
What causes a Trane low pressure switch to trip?
Tripping is typically triggered by a loss of refrigerant, a restricted filter drier, or a frozen evaporator coil. If the pressure drops below 50 psig, the Trane SWT3546 opens the circuit to stop the compressor.
Can I use a universal switch as an alternative?
While universal switches exist, using a genuine Trane SWT03546 ensures the 50/70 PSI setpoints remain accurate to the manufacturer's specification, preventing false trips or delayed responses that could lead to motor failure.
Does this switch require manual resetting?
This specific SPST pressure switch is designed to cycle based on pressure. It closes again once the pressure rises back to 70 psig, though a lockout may still be recorded by the main control board for diagnostic review.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
