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McDonnell Miller Series AF1 Air Flow Switches

Air Flow Switches
Series AF1

• For general purpose applications with medium and high velocity requirements
• Paddle fits 8” (203mm) minimum duct size, or 6” (152mm) if trimmed

• Single pole, double throw snap switch
• Sensitivity adjusting screw makes flow adjustment easy
• Two electrical knock-outs allow connection from either end
• Can be equipped with a time delay relay
• Optional features
   – Stainless steel
   – Anti-corrosion treatment
• Minimum ambient temperature 32°F (0°C)
• Maximum duct temperature 300°F (149°C)

Select a link under the "item" tab below to order.

Cat #DescriptionsPart NumberWeight Ibs.(kg)
AF1Air flow switch1228002.0 (. 9)
AF1- JAF1 w/corrosion coating1229202.5 ( 1.1)
AF1- J- EAF1-J-CE conformance rated1229212.5 ( 1.1)


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