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The Cleveland Controls AFS-952-55-B Differential Pressure Sensing Switch is designed to provide precise operation and convenient features for industrial and commercial air handling applications.

The AFS-952-55-B can monitor positive, negative, or differential pressure (flow) of air and non-combustible gases, and is commonly used to monitor combustion air, furnace pressure, ventilating blower operation, inflatable structure pressure, fume hood operation, bag house air flow, dirt accumulation in air filters, and heat-transfer air flow.

The AFS-952-55-B has a field-adjustable set point range of 0.05'' W.C. to 12.0'' W.C. with an 8 second ± 3 seconds) time delay relay sequence. The time delay prevents nuisance shutdowns due to normal pressure fluctuations.
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Setpoint Range:

.05" to 12" WC

Max Temp (F):


Max Pressure (PSI):



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