United Electric earns SIL 2 certification for 100 and 120 series of electromechanical switches

  • April 10, 2017
  • United Electric Controls
  • News

April 10, 2017 — United Electric Controls (UE), a producer of safety, alarm and shutdown technology, announced that it has received SIL 2 certification on two of its electromechanical switch offerings. Combined with the SIL 2-certified One Series Safety Transmitter, UE now offers process instrumentation end users with a e range of options for electromechanical or digital switching in general process or hazardous area functional safety applications.

Global safety certification provider exida has certified United Electric’s (UE’s) 100 Series and 120 Series pressure, differential pressure and temperature switches for use in a SIL 2 environment, with systematic capability at SIL 3 level. The option for SIL 3 reliability in electromechanical or digital switching provides flexibility to optimize instrumentation around performance, safety or economic objectives.

Switch users looking for electromechanical SIL 2 level switching can specify the 100 Series for weather-proof general applications. The 100 Series provides pressure or temperature switching for process plants and OEM equipment. Its one-piece enclosure features a clamshell cover for wiring accessibility, with a wide variety of microswitch, sensor and process-connection options. Typical applications include heat tracing, freeze protection, processing equipment (pumps, compressors), inputs for annunciator panels and fire suppression systems.

Those needing SIL 2 level reliability temperature and pressure switching in Division 1/Zone 1 hazardous environments can consider the explosion-proof UE 120 Series electromechanical switches. The 120 Series performs critical safety, alarm and shutdown functions in oil & gas, petrochemical, and refining industries. They are also globally certified for hazardous applications in North America (cULus), Europe (ATEX, CE, IECEx), India (PESO), Russia (EAC), and other regions.

Those seeking the financial and operational benefits of having a complete safety instrumented system (SIS) in a single digital unit would specify UE’s One Series Safety Transmitter. One Series Safety Transmitters bundle rapid switching, safety logic solving and temperature or pressure sensing in a single housing. They are equipped with digital displays and diagnostic capabilities and shipped SIL 2 certified (SIL 3 Capable) from the factory, removing risk of implementing external relays and controls.

The SIL-certified electromechanical switches will be available for sale on May 1, 2017. The One Series Safety Transmitters are available immediately.

About United Electric Controls

United Electric Controls (UE,) a privately held corporation founded in 1931 and headquartered in Watertown, Massachusetts, USA, is a global supplier of electronic transmitter-switches, pressure and temperature switches, transmitters, wireless gas detectors, sensors and controls for the process, discrete, semiconductor, aerospace and defense industries. 

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