Description
Trane CNT4961 Low Pressure Switch Overview
The Trane CNT4961 is an OEM low pressure switch engineered to protect refrigeration and HVAC systems from operating under unsafe low-pressure conditions. Designed as a direct Trane replacement part, this switch delivers reliable, repeatable performance to help safeguard compressors and system components from damage caused by low refrigerant charge or other pressure-related faults.
Key Specifications
- Switch Type: Low Pressure Switch
- Opening Pressure: 25 PSI
- Closing Pressure: 41 PSI
- Lead Length: 55 inches
- OEM Part Number: CNT4961
- Compatible Brand: Trane
Features & Benefits
- Factory-set open and close pressure setpoints for plug-and-play replacement
- 55″ lead wires provide flexible routing during installation
- Protects compressors from low-refrigerant and low-pressure fault conditions
- Genuine Trane OEM part ensures proper fit and reliable operation
- Designed for use in Trane residential and light commercial HVAC equipment
Application
The CNT4961 low pressure switch is intended for use in Trane air conditioning and heat pump systems where low-side refrigerant pressure monitoring is required. The switch opens at 25 PSI to interrupt the control circuit under low-pressure fault conditions and automatically resets (closes) at 41 PSI once safe operating pressure is restored, helping to prevent compressor damage and extend system life.
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