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and 210/211 series
The 22" leads provide sufficient length for secure wiring into the control circuit
it effectively masks wall marks left by legacy footprints
Enhanced Visibility: The high-clarity clear lens allows for immediate diagnostic assessment even in high-ambient light environments
Common Questions When should I replace the collector box gasket
Cleveland Controls DFS-301-112 Switch and 210/211 seriesThe Cleveland Controls DFS 301 112 is a precision engineered fixed set point airflow switch designed for critical monitoring in duct heaters, ovens, and high performance HVAC systems. As an airflow proving switch, it utilizes a sensitive silicone diaphragm and a snap acting SPDT switch to ensure air pressure rises meet specific operational thresholds before permitting equipment engagement. This model is factory calibrated to operate at a fixed 0. 03"
