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

The SX matches the Exd IIB T6 standards. The SH is our solution reaching Exd IIB + H2 T6 requirements. SX and SH, thanks to spare pass through terminals, the three cable entries either metric or imperial and different visual position indications, provide a highly customizable solution meeting a wide range of applications. These include, but are not limited to, oil and gas (both on-shore and off-shore) and petrochemical industries.

Features:

  • Twin Shaft Design, ensuring a complete sealed device: the shaft is split in two parts, each fitted and sealed into the body and cover for the best weather insulation even during opening operation
  • Enhanced Flexibility of Electrical Feedbacks Options
  • Up to Three Cable entries available in different sizes
  • 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
  • Captive Bolts on the Screwed Lid
The above description encapsulates the entire product series. Specifications for individual configurations may vary depending on the selection chosen.
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Selected Configuration

Model #:

SX-SH

Price:
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Availability:
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Min. Qty:
1 Item

Configuration

reset configuration

Agency Approvals

  • ATEX: Ex II 2GD Ex d IIB T4/T5/T6 Gb (SX Series), Ex II 2GD IIB + H2 T4/T5/T6 Gb (SH Series) and Ex tb IIIC T135/T100/T85° C Db
  • CCOE: Ex II 2GD Ex d IIB T4/T5/T6 Gb (SX Series), Ex II 2GD IIB + H2 T4/T5/T6 Gb (SH Series) and Ex tb IIIC T135/T100/T85° C Db
  • CE
  • cULus: Class 1/2 Division 1, Class 1/2 Division 2
  • EAC: Ex II 2GD Ex d IIB T4/T5/T6 Gb (SX Series), Ex II 2GD IIB + H2 T4/T5/T6 Gb (SH Series) and Ex tb IIIC T135/T100/T85° C Db
  • IEC Ex: Ex II 2GD Ex d IIB T4/T5/T6 Gb (SX Series), Ex II 2GD IIB + H2 T4/T5/T6 Gb (SH Series) and Ex tb IIIC T135/T100/T85° C Db
  • INMETRO: Ex II 2GD Ex d IIB T4/T5/T6 Gb (SX Series), Ex II 2GD IIB + H2 T4/T5/T6 Gb (SH Series) and Ex tb IIIC T135/T100/T85° C Db
  • NEPSI
  • SIL 3
  • UL: Class I Division 1 Groups B, C, D Division 2 Groups A, B, C, D and Class II Division 1 Groups E, F, G Division 2 Groups F, G

Environmental Protection

  • IP66
  • IP67
  • NEMA 4
  • NEMA 4X
  • Weatherproof

Temperature Range

  • -60° to 100° C (-76° to 212° F)

Ambient Temperature

  • -40° to 105° C (-40° to 221° F)

Switch Quantity

  • 2 Switches
  • 4 Switches (on Exd IIB Certification)

Media

  • Inert Gas Contact Chamber - REED C4 and C8

Switch Type

  • DPDT - Proximity Hermetically Sealed Snap Acting, Reed
  • PNP, Normally Open
  • SPDT - Proximity Hermetically Sealed Snap Acting, Reed

Supply Voltage

  • 10-30 Vdc - 3 Wire PNP Normally Open
  • 12-30 Vdc - 4-20 mA Position Transmitter
  • 8-30 Vdc - 4-20 mA HART Position Transmitter

Cable Entry

  • 1/2" NPT
  • M20 x 1.5

Electrical Rating

  • 0.1 A at 120 Vac - REED C4, C8
  • 1 A at 24 Vdc - High Power Loop for REED C4 and C8
  • 1 A at 250 Vac - High Power Loop for NOVA V3™ N3
  • 1 A at 30 Vdc - High Power Loop for NOVA V3™ N3
  • 5 A at 250 Vac - High Power Loop for NOVA V3™ N1 and N4
  • 5 A at 28 Vdc - High Power Loop for NOVA V3™ N1 and N4

Electrical Contacts

  • Silver-Plated - SPDT, DPDT

Electrical Connectors

  • 2-wire
  • 3-Wire

Terminal Strip

  • Screw Terminal Strip
  • Stainless Steel Board with Cage Clamp Terminals
  • Standard PCB Board with 3 Extra Terminal Poles

Indication

  • 3D Plastic Visual (Red and Green) and 3D Stainless Steel Position Indicator

Enclosure/Body Material

  • Die-cast Aluminum

Enclosure Finish

  • Black Powder Coated Polyester

Shaft Material

  • Stainless Steel

Cover Material

  • Die Cast Aluminum

Applications

  • Oil and Gas Applications (Both On-Shore and Off-Shore)
  • Petrochemical Industry

Current

  • 0-100 mA - 3 Wire PNP Normally Open