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Please select from the product types listed on the left, where General Purpose and Hazardous Area switches are catagorized by NEMA standards. Or, you can search for a part number using the form field provided (near the top of this and on every page).

Series 151P
Differential Pressure Switch Features

  • Adjustable set point
  • Up to 150 PSID proof pressure
  • Ranges from 5′ to 150′ WC
  • Compact Design
  • NEMA 4X, 7, 9 and 13
  • ATEX approved
Contact us for more information.






The Neo-Dyn® 151P Differential Pressure Switch is a low range adjustable compact switch. The design features efficient Nega-RateŽ Belleville disc spring sensing mechanism. Stable set points are not affected by system pressure changes.


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