Cleveland Controls NS2-1119-00 Pressure Switch

The Cleveland Controls NS2-1119-00 is an industrial-grade DPDT pressure switch engineered for high-accuracy sensing in critical HVAC and process control environments. This differential air pressure switch features a factory-fixed setpoint of 0.05" WC, making it a professional choice for identifying low-flow conditions, proving draft, or monitoring filter status. Built with a rugged glass-filled polycarbonate housing and a high-stability silicone diaphragm, the NS2-1119-00 maintains a narrow switching differential even under extreme temperatures ranging from -40°F to 180°F.

For the technician, the Double Pole Double Throw (DPDT) configuration provides advanced control logic, allowing for simultaneous switching of two independent circuits—ideal for triggering an alarm while safety-interlocking a burner or blower. This model includes integrated mounting feet for rapid, stable installation on vertical planes. The air pressure sensing switch utilizes color-coded ports (Black for Positive, Gray for Negative) to prevent plumbing errors during field replacement. With a 1/4" quick-connect terminal interface and support for the products of combustion, this switch is a reliable drop-in solution for OEM and light commercial applications requiring precise differential pressure monitoring.

Key Benefits:

• DPDT Contact Arrangement: Allows for versatile control of multiple circuits or safety interlocks from a single pressure event.
• Ultra-Low 0.05" WC Setpoint: Specifically calibrated for high-sensitivity applications where slight pressure drops must be detected.
• Durable Construction: Features a contaminant-resistant glass-filled polycarbonate body and silicone diaphragm for long-term stability.
• Simplified Installation: Built-in mounting feet and color-coded ports streamline the mounting and tubing process for field contractors.
• Broad Media Compatibility: Rated for air and non-corrosive combustion by-products, ensuring performance in varied HVAC environments.

Common Questions:

Can I mount this switch in any orientation?
To maintain the precise 0.05" WC calibration, it is recommended to mount the switch with the diaphragm in a vertical plane. Horizontal mounting may shift the setpoint due to the weight of the internal diaphragm.

What type of tubing is compatible with the ports?
The ports are designed to accept standard 1/4" or 3/16" ID flexible or rigid tubing typical in HVAC pressure switch installations.

Is the setpoint adjustable for field tuning?
No, the NS2-1119-00 features a factory-calibrated, non-adjustable setpoint to ensure tamper-proof safety and consistent system performance.

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.