Description
Siemens 69WA4B Pressure Switch Overview
The Siemens 69WA4B is a commercial-grade pressure switch engineered for dependable pressure monitoring and control in HVAC, hydronic, and related mechanical systems. With a 30 PSI cut-in and 50 PSI cut-out range paired with a 15/30 PSI adjustable differential, this switch provides precise, repeatable performance to protect equipment and maintain safe operating pressures.
Key Features
- Cut-in pressure: 30 PSI
- Cut-out pressure: 50 PSI
- Differential range: 15–30 PSI
- Designed for commercial HVAC and hydronic system applications
- Reliable switching action for equipment protection and system control
- Siemens quality construction for long service life
- Suitable for use in boiler, chiller, and pressure-regulated mechanical systems
Application
The 69WA4B is ideal for use in commercial building HVAC systems where accurate pressure switching is critical. It can be used to start or stop pumps, compressors, or other mechanical equipment based on system pressure levels, helping to prevent over-pressurization and equipment damage.
Product Specifications
- SKU: 69WA4B
- Brand: Siemens
- Type: Pressure Switch
- Cut-In Pressure: 30 PSI
- Cut-Out Pressure: 50 PSI
- Differential: 15/30 PSI







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