Square D,PRESSURE SWITCH 480VAC 10AMP G +OPTIONS,-10...185 .F,0.25 inch 18 NPTF conforming to UL 508,0.5 inch NPT conduit entrance,1000 psi,120 operating cycles per minute (max),20...1000 psi,Adjustable Differential,NEMA 4/4X/13,Pressure Switch,SPDT (isolated),Single Stage,UL, CSA, IEC, CE-marked,Water tight, Dust tight, Oil tight and Corrosion Resistant (Indoor/Outdoor),air-non-corrosive liquids-hydraulic oil (-15...250 .F)-hydraulic oil (-15...250 .F)-non-corrosive gas