United Electric J21K Series Differential Pressure Switches

8542-J21KD J21K-357 J21K-140 J21K-50-9538 J21K-14829 J21K-S140B J21K-150 J21KD-2081C J21K-150-9538 J21KD-232 J21K-232-2000 J21KD-8542 J21K-232-9559  J21KX Differential Pressure SwitchThe J21K Series differential pressure switch monitors the difference between two system pressures or vacuums. It senses excessive flow deviation or verifies that a filter is clogged.The J21K Series switch’s rugged design – with epoxy-coated enclosure and sealed metal bellows – lends itself to exacting applications. Widely found in refrigeration (chiller) and compressor applications, the J21K Series differential pressure switch is used for filter status monitoring and proof of flow.OverviewRugged, NEMA Type 4X, epoxy coated enclosure (with watertight conduit fitting)?SPDT switch output?Welded 316 stainless-steel or brass sensors?Unique isolated sensor design?Adjustable ranges:30 “Hg Vac to 90 psid-1 bar to 6,2 bar?UL listed and cUL certified?Optional ATEX or EAC intrinsic-safety compliance?Adjustable deadband option for precise on-off controlHighlightsDesigned to meet Enclosure Type 4X (with watertight conduit fitting)?UL listed and cUL certified?Optional ATEX and Rostechnadzor (GOST-R) intrinsic safety compliance?Optional adjustable deadband?Single switch output?Opposing bellows design