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

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


•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 lock.
•Partial stroke test device option.
The above description encapsulates the entire product series. Specifications for individual configurations may vary depending on the selection chosen.

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Agency Approvals

  • ATEX
  • CCOE
  • EAC
  • IEC Ex
  • SIL
  • UL

Environmental Protection

  • IP68
  • NEMA 4X

Temperature Range

  • CPE

Ambient Temperature

  • -60° to 80° C (-76° to 176° F)

Switch Quantity

  • 2 Switches
  • 4 Switches
  • 6 Switches

Switch Type

  • DPDT
  • Electromechanical
  • Magnetic Proximity Switch
  • SPDT Snap Switch

Cable Entry

  • 1/2" NPT
  • M20 x 1.5


  • 4-20 mA


  • 3D Indicator
  • Flat Indicator

Enclosure/Body Material

  • 316 Stainless Steel
  • Aluminum