Cleveland Controls NS2-1178-00 Pressure Switch

As a technician, you know that consistent performance in low-pressure applications depends on the reliability of your differential sensing. The Cleveland Controls NS2-1178-00 Pressure Switch is a professional-grade solution designed for precise airflow monitoring in HVAC, industrial process controls, and fluid power systems. This air pressure sensing switch features a compact glass-filled polycarbonate housing and a post-cured silicone diaphragm, ensuring high stability even in demanding environments with temperatures ranging from -40°F to 190°F.

The NS2-1178-00 is factory-calibrated to a sensitive 0.05" WC setpoint, making it ideal for detecting minute changes in positive, negative, or differential pressure. It comes equipped with mounting feet for versatile installation and 90° male quick-connect terminals for streamlined wiring. With a maximum pressure rating of 14" WC and a mechanical life exceeding 100,000 cycles, this 0.05 inch water column switch provides the rugged durability required for long-term service in commercial and industrial machinery.

Key Benefits for the Contractor:

• Precision Calibration: Factory-set at 0.05" WC to ensure accurate safety interlocking and proof-of-airflow in sensitive low-pressure systems.
• Rugged Componentry: Features a glass-filled polycarbonate body and silicone diaphragm for resistance against contaminants and thermal drift.
• Flexible Mounting: The inclusion of mounting feet allows for secure positioning in tight equipment cabinets or plenum spaces.
• Universal Connectivity: Color-coded high (black) and low (gray) ports simplify identification and prevent cross-piping during field installation.
• High Electrical Compatibility: Rated for a variety of tasks, including 1/10 HP @ 120-277 Vac and pilot duty applications.

Common Questions & Technical Support:

Can this switch be used to sense vacuum?
Yes, the Cleveland Controls NS2-1178-00 can monitor positive pressure, vacuum, or differential pressure by utilizing the color-coded sensing ports (P1 positive, P2 negative).

What is the proper mounting orientation?
For maximum accuracy at the 0.05" WC range, it is recommended to mount the diaphragm in a vertical position unless otherwise specified, avoiding orientations where sampling line connectors point directly upward to prevent moisture accumulation.

Is this compatible with combustion by-products?
The materials used in the NS2 series are designed to withstand air and by-products of combustion that do not degrade silicone or polycarbonate, making them suitable for many boiler and furnace applications.

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.