The Model 1950 explosion-proof differential pressure switch combines all the features of the 1900 series differential pressure switches and comes with explosion-proof or all-weather protective housings, making it more versatile and valuable. It has CE, UL, CSA, and FM certifications, with explosion-proof ratings of Class I, Div 1, Groups C and D; Class II, Groups E, F, and G; and Class III hazardous atmospheres, NEMA 7 & 9. It's raintight with NEMA 3 (IP54). The all-weather housing has a drain plug and O-ring seal, and wiring is easy once you open the front cover. You can adjust the setpoint from the outside of the housing. There are 12 models to choose from, covering ranges from 0.03" to 220" WC (7.5 to 5000 Pa) and 0.5 to 50 psi (0.035 to 3.5 Bar). The Model 1950 explosion-proof differential pressure switch is compact and lightweight, about half the size and weight of other explosion-proof switches.  

Warning: For use with air or compatible gases only. Special ventilation is required when used in hazardous locations under single positive pressure.

● The explosion-proof and waterproof casing protects the device for outdoor use or operation in harsh environments.

● External adjustment screws provide a convenient entry for adjustments without opening or removing the casing.

● Easily accessible electrical connections simplify installation.