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
