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Pressure switch and thermostat for hazardous areas Series 120

United Electric’s 120 Series meets the requirements for hazardous atmospheres through approvals and certifications, making it the best choice where there is a potentially explosive or highly corrosive atmosphere.

This pressure switch offers a wide range of pressure, vacuum, differential pressure and temperature ranges as well as process connections, materials in contact with liquids and sensor types.

With a flexible common platform, the models can be quickly adapted in the factory for special requirements such as ranges, process connections and electrical ratings.

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Adjustable rangesFrom empty to 413 bar maximumTemperature– 117 ºC to 343 ºCPressure connections1/2 “NPT H or 1/4” NPT H. Other availableMaterials in contactBrass or AISI 316 standardO-materialsBuna N, Viton, Teflon, etc …ProtectionClass I Div 1 & 2 (zone 1); Class II Div 1 & 2; Class III

ADVANTAGES

  • Provides main or secondary emergency shutdown and alarm functions
  • Choice of internal or external adjustment

APPLICATIONS

  • Improves accuracy with ultra-low pressure
  • Much flexibility thanks to the multiple outputs
  • Easy installation through dual electrical conduit openings

CHARACTERISTICS

  • Simple SPDT or DPDT outputs, or double SPDT
  • Wide selection of sensor ranges and materials
  • Range up to 410 bar, 35 bar, 240 ºC
  • Fixed or adjustable differential
  • Hastelloy, Monel and Tantalum available optionally

Technical specifications

 

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