Description
The Schneider Electric (Square D) 9013FSW29J21 is an adjustable differential pressure switch designed for dependable pressure monitoring and control in HVAC, refrigeration, and light industrial applications. With a 30–50 PSI adjustable differential pressure range, this switch provides flexible setpoint configuration to match a wide variety of system requirements.
Square D pressure switches are trusted by mechanical contractors and facilities engineers for their rugged construction, consistent switching performance, and long service life. The 9013FSW29J21 is built to protect equipment by detecting pressure differentials and triggering control circuit responses — helping prevent compressor damage, pump cavitation, and system failures before they occur.
Key Features
- Adjustable differential pressure range: 30–50 PSI
- Designed for HVAC, refrigeration, and light industrial pressure control applications
- Reliable switching action for equipment protection and system safety
- Field-adjustable setpoint for flexible installation and commissioning
- Rugged construction for long-term performance in demanding environments
- Manufactured by Schneider Electric under the trusted Square D brand
Applications
- Compressor high/low pressure protection
- Hydronic and chilled water system pressure monitoring
- Refrigeration system differential pressure control
- Pump and fan differential pressure sensing
- General HVAC mechanical room pressure control
Why Choose Square D Pressure Switches?
Schneider Electric’s Square D line of pressure switches has been a cornerstone of commercial and industrial control systems for decades. The 9013 series is widely specified by engineers and trusted by technicians for its accuracy, durability, and ease of adjustment. Whether protecting critical refrigeration equipment or monitoring building system pressures, the 9013FSW29J21 delivers the performance and reliability your application demands.
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