J21K Series pressure switch

The J21K differential pressure switch monitors the difference between two system pressures or vacuums and senses excessive flow deviation, or verifies that a filter is clogged. The J21K’s rugged design – with epoxy coated enclosure and sealed metal bellows – lends itself to exacting applications. Widely used in refrigeration (chiller) and compressor applications, the J21K can be used for filter status monitoring and proof of flow.

– J 21 K Series Product Bulletin

  • Rugged, NEMA 4x, epoxy coated enclosure
  •  SPDT switch output
  •  Welded 316 stainless steel or brass sensors
  •  Unique isolated sensor design
  •  Adjustable ranges:
    30 “Hg Vac to 90 psid
    1 bar Vac to 6,2 bar d
  • Approvals: UL, CSA, CE