Cleveland Controls AFS-271 Air Pressure Sensing Switch WC SPDT - 0.05-2.0

The Cleveland Controls AFS-271 is a precision air pressure sensing switch designed for HVAC and combustion applications requiring reliable low-pressure monitoring. This single-pole double-throw (SPDT) switch provides accurate differential pressure detection across a range of 0.05 to 2.0 inches water column ("wc), making it ideal for air flow proving, filter monitoring, and combustion air verification systems.

Key Features:

• Pressure range: 0.05 to 2.0 inches water column
• SPDT contact configuration for versatile control applications
• Designed for air flow and differential pressure sensing
• Reliable switching action for safety and control circuits
• Suitable for furnaces, boilers, and HVAC equipment
• Compact design for easy installation in tight spaces

This air pressure switch is commonly used to prove air flow in combustion appliances, monitor filter status in ventilation systems, and ensure proper draft conditions. The SPDT contact arrangement allows for both normally open and normally closed circuit control from a single device.