J21K Series Differential Pressure Switch
- Welded bellows sensor provides leak-free protection
- Precise on-off control through adjustable deadband option
- Application versatility achieved through a variety of ranges and microswitches
Robust, NEMA 4X differential pressure switch
The J21K Series is simple to install and operate for alarm, safety and emergency shutdown applications requiring a higher switch sensitivity. It monitors the difference between two system pressures or vacuum using sealed, opposing bellows sensors. As an electromechanical switch, it can safely operate independently of the control system and switch reliably when called upon, free from potential communication errors or cyber concerns.
Typical applications that utilize the J21K Series include proof of flow, filter monitoring, vacuum pumps, chillers, and compressors.
Industries
HVAC
Power
Oil & Gas
Resources
Filter by language:
Filter by language:
Filter by region:
- 6, 10, 12, 21, 100, 117, 120, 400 Series – UKCA Ex ia Certificate (UK)
- 6, 10, 12, 21K, 100, 117, 120, 400 Series – EAC Ex ia Certificate (Russia)
- 6, 10, 12, 21, 100, 117, 120, 400 Series – Ex ia UK Declaration of Conformity (UK)
- 6, 10, 12, 21, 100, 117, 120, 400 Series – CE Declaration of Conformity EMC (Europe)
- 6, 10, 12, J21K, 100, 117, 120, 400 Series CCC Certificate Intrinsic Safety (China)
- J21K Series – PESO Certificate Ex ia IIC T6 Ga (India)
- J21K Series – IECEx Certificate of Conformity (International)
- J21k Series – CE Declaration of Conformity PED (Europe)
- J21K Series – ATEX Ex ia Declaration of Conformity (Europe)
- J21K Series – ATEX Ex ia Certificate (Europe)
- J21K Series – CRN (North America)
- J21K Series – UL Certificate of Compliance (North America)
- J121K Series – CE Declaration of Conformity LVD (Europe)
Know what you need?
Use our Product Selector to configure the model and options for your application.
Related Products
Excela™ Pressure and Temperature Electronic Switch
2-wire electronic switch for upgrading legacy alarm and ESD systems
