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Series details

Heavy-duty limit switch boxes, designed for hazardous areas, provide a visual and electrical remote position feedback on automated valves.

Available in 316 stainless steel, the explosion proof enclosure matches the Ex d IIC T6 standards. The SW limit switch box serie, thanks to its large inner volume able to host up to 6 switches and spare pass through terminals and the four cable entries either metrics or imperial, provide a highly customizable solution meeting a wide range of applications. These including, but not limited to, the Oil and Gas, both onshore and off shore, and Petrochemical industries.

Features:

  • Twin shaft design, ensuring a complete sealed device: the shaft is splitted in two parts, each fitted and sealed into the body and cover for the best weather insulation even during opening operation.
  • Suitable for artic application, down to -60°C
  • Enhanced flexibility of electrical feedbacks options.
  • Up to four cable entries available in different sizes.
  • 316 stainless steel housing for extremely hostile and corrosive environments
  • Easy wiring through the terminal PCB board
  • NOVA V3 switch option ensures extreme durability and high power switching capabilities
  • 4-20 mA position transmitter options
  • Single tool opening design, allowing the operator to unscrew the lid by hand after removing the locker
  • Technical Data:

    Materials:

  • AISI 316 Stainless steel body and cover with electro-polished finishing
  • Stainless steel fasteners and shafts
  • Approvals:

    ATEX, IECEx, EAC, CCOE, INMETRO, NEPSI:

    Ex II 2GD  Ex d IIC T4/T5/T6 Gb

    Ex tb IIIC T140/T110/T110°C Db

    Ta:  -60°C≤Ta≤105°C/80°C/60°C

    UL:             

    Class I Division 1 Groups B,C,D  Division 2 Groups A,B,C,D

    Class II  Division 1 Groups E,F,G  Division 2 Groups F,G

    SIL certificate:

    Up to SIL 3 certified by TUV

    Protection rating:

    IP 66 / 68 up to 10 meters for 48 hours

    Cable entries options:

    Up to four cable entries, metric and imperial sizes

    Temperature:

    Standard operating temperature -20°C +80°C Lower and higher temperature options available on request

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