United Electric J21K-357-0140-M446-M900 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.

Features

• Sealed Metal Bellows Sensors
• Welded 316 Stainless Steel Sensors
• Gasketed Die-Cast Aluminum Enclosure with Epoxy Coating
• Single Switch Output
• Adjustable Ranges: 30 “Hg Vac to 90 psid (-1 to 6 bar)
• Designed to meet Enclosure Type4X (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