Pressure Switch 120 series / Hazardous, Pressure, Differential, Vacuum, -1 ~ 414 Bar

Type : Mechanical
Pressure : 30 Hg Vac ~ 6,000 psi ( -1 ~ 414 Bar )
Differential Pressure : 0.2 wcd ~ 500 psid ( 0.5 mBar ~ 34 Bar )
Casing : NEMA 4

UE 120 series pressure switch is for Hazardous use.
https://www.ueonline.com/products/hazardous-location/120-series/