Limit Switch Box designed for safe and hazardous areas, provides a visual and electrical remote position feedback on automated valves.

Available in either die cast aluminum, with different lid choices, from the same enclosure material, for a complete metallic device, to the transparent polycarbonate cover or to a flat lid without visual indication. Designed for weather proof applications, it can also matches the Ex ia.

IIC T6 standards with the integral intrinsically safe certification, covering both enclosure and electrical components inside.

The Soldo multi-application limit switch box solution, covering from industrial automation to food and beverage, from chemical to maritime, from oil and gas, both on-shore and off-shore, to 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
  • Suitable for Artic Application, down to -50° C (-76° F)
  • Two Cable Entries, either Metric or Imperial
  • Enhanced Corrosion Resistance thanks to the Thick Polyester Powder Coating on Aluminum Housings
  • 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
  • ASI Communication Protocol Board
  • 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 #:

SF-SS-SB

Price:
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Availability:
Out of Stock
Min. Qty:
1 Item

Configuration

reset configuration

Agency Approvals

  • ATEX Ex II 2GD Ex ia IIC T4/T5/T6, Ex ia IIIC T44° C to T108° C Db, Ex ia IIIB T44° C to T108° C Db
  • CCOE Ex II 2GD Ex ia IIC T4/T5/T6, Ex ia IIIC T44° C to T108° C Db, Ex ia IIIB T44° C to T108° C Db
  • CE
  • cULus Class 1/2 Division 2
  • EAC Ex II 2GD Ex ia IIC T4/T5/T6, Ex ia IIIC T44° C to T108° C Db, Ex ia IIIB T44° C to T108° C Db
  • IEC Ex Ex II 2GD Ex ia IIC T4/T5/T6, Ex ia IIIC T44° C to T108° C Db, Ex ia IIIB T44° C to T108° C Db
  • SIL 3
  • UL Class I Division 2 Groups A, B, C, D, Class II 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

  • -60º to 105º C (-76º to 221º F)

Switch Quantity

  • 2 Switches
  • 3 Switches

Media

  • Inert Gas Contact Chamber - REED C4 and C8

Sensor Connection

  • 2-wire
  • 3-wire

Switch Type

  • DPDT - Proximity Hermetically Sealed Snap Acting, Reed
  • PNP
  • 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 and C8
  • 0.1 A at 30 Vdc - Exia Rating Maximum (NOVA V3™ N3, REED C4 and C8)
  • 1 A at 24 Vdc - REED C4 and C8
  • 1 A at 250 Vac - NOVA V3™ N3
  • 1 A at 30 Vdc - 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

Communication

  • ASI Communication Protocol

Electrical Contacts

  • Gold-Plated - SPDT
  • Normally Closed
  • Normally Open
  • Silver-Plated - SPDT, DPDT

Terminal Strip

  • Blue Screw Terminal Strip - With Extra Poles for Solenoid Valve Connection (For Exia Certification)
  • Cage Clamp Terminal Strip - With Extra Poles for Solenoid Valve Connection
  • Screw Terminal Strip - With Extra Poles for Solenoid Valve Connection
  • Terminal PCB Board

Indication

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

Enclosure/Body Material

  • AISI 316 Stainless Steel
  • Die-cast Aluminum

Enclosure Finish

  • Electropolishing
  • Powder Coated Polyester - Black and Blue Powder

Shaft Material

  • Stainless Steel - Fasteners

Cover Material

  • AISI 316 Stainless Steel
  • Die Cast Aluminum
  • Transparent Polycarbonate

Sensor/Probe Type

  • NAMUR Sensor

Applications

  • Chemical Industry
  • Food and Beverage
  • Industrial Automation
  • Maritime
  • Oil and Gas Applications
  • On-Shore and Off-Shore
  • Petrochemical Industry

Current

  • 0-100 mA - 3 Wire PNP Normally Open