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Description
Compact limit switch box, designed for hazardous areas, provides a visual and electrical remote position feedback on automated valves.
Available in either die cast aluminum or 316L stainless steel, the explosionproof enclosure matches the Exd IIC T6 standards. The SK-SQ switch box series offer a ready to mount solution thanks to the integrated Namur mounting kit.
The ideal compact solution for 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
- Integrated Mounting Kit for Namur Actuators
- Two Cable Entries, Either Metric or Imperial
- Enhanced Corrosion Resistance Due to the Thick Polyester Powder Coating on Aluminum Housings
- 316L Stainless Steel Housing for the Maximum Protection in Hostile and Corrosive Environments (SQ Series)
- Enhanced Corrosion Resistance Thanks to the Thick Polyester Powder Coating on Aluminum Housings (SK Series)
- Easy Wiring through the Terminal PCB Board
- NOVA V3 Switch option ensures extreme durability and high power switching capabilities
- Concentric flame path design providing a self-centering system aligning shafts for a precise engagement
- Captive Bolts on the Screwed Lid
Configure
SK-SQ
Box
Switch
Switch Quantity
Terminals
Coating
Cable Entry
Visual Position Indicator
Approvals
SIL2 / SIL3 options available on request
Marking
IP Protection Rating
Temperature Range
Material
Specifications
Specifications
Brand
Ambient Temperature Range
- -55° to 105° C (-67° to 221° F)
Applications
- Oil & Gas Applications
- On-Shore & Off-Shore
- Petrochemical Industries
Approvals & Certifications
- ATEX Ex II 2 GD Ex D IIC T4/T5/T6 Gb, Ex Tb IIIC T135/T100/T85° C Db
- CCOE Ex II 2 GD Ex D IIC T4/T5/T6 Gb, Ex Tb IIIC T135, T100, T85° C Db
- CE
- cULus Class1/2 Div1, Class1/2 Div2
- EAC Ex II 2 GD Ex D IIC T4/T5/T6 Gb, Ex Tb IIIC T135, T100, T85° C Db
- IEC Ex: Ex II 2 GD Ex D IIC T4/T5/T6 Gb, Ex Tb IIIC T135, T100, T85° C Db
- INMETRO Ex II 2 GD Ex D IIC T4/T5/T6 Gb, Ex Tb IIIC T135/T100/T85° C Db
- NEPSI
- PESO
- SIL 3
- UL Class I Division 1, Groups B, C, D Division 2, Grade A, B, C, D & Class II Division 1, Groups E, F, G Division 2, Groups F, G
Cable Entry
- 1/2" NPT
- M20 x 1.5
Cover Material
- 316 Stainless Steel - for SQ Series
- Die Cast Aluminum - for SK Series
Current
- 0 to 100 mA - 3-Wire PNP Normally Open
Electrical Connectors
- 3-Wire
Electrical Contacts
- Gold-Plated - for SPDT
- Normally Open
- Silver-Plated - for SPDT & DPDT
Electrical Rating
- 1 A at 24 Vdc - for Reed C4
- 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 & N4
- 5 A at 28 Vdc - High Power Loop for NOVA V3™ N1 & N4
Enclosure Finish
- Black Polyester Powder-Coated - for SK Series
- Electro-Polishing - for SQ Series
Enclosure, Body Material
- 316 Stainless Steel - for SQ Series
- Die Cast Aluminum - for SK Series
Environmental Protection
- Hazardous Area
- IP66
- IP67
- IP68
- NEMA 4
- NEMA 4X
- Weatherproof
Indication
- 3D Plastic Visual (Red & Green) & 3D Stainless Steel Position Indicator
Media
- Inert Gas Contact Chamber
Shaft Material
- Stainless Steel - Shaft & Fastener Material
Supply Voltage
- 10-30 Vdc - 3-Wire PNP Normally Open
Switch Quantity
- 2 Switches
Switch Type
- DPDT Switch: Proximity Hermetically Sealed Snap Acting
- PNP
- SPDT Switch: Proximity Hermetically Sealed Snap Acting & Reed
Temperature
- -55 to +105 °C (67 to +221 °F) Available on Request
- +20 to +80 °C (-4 to +176 °F) Standard Temperature Range
Terminal Strip
- Standard PCB Board with 3 Extra Terminal Poles
Documentation
Documentation
Certificate
Dimensional Drawing
Document
- ATEX II2GD Dust Proof (pdf) (218 KB)
- ATEX II2GD Explosion Proof (pdf) (218 KB)
- CCCEx Explosion Proof (pdf) (982 KB)
- CCEX Dust Proof (pdf) (982 KB)
- CCOE Explosion Proof (pdf) (1.30 MB)
- EAC Hazardous Location (pdf) (4.40 MB)
- ECAS-Ex Explosion Proof/Dust Proof (pdf) (73 KB)
- hubspot-crm-exports-infowave3-company-emails-2020-12-08.xlsx (34 KB)
- hubspot-crm-exports-infowave3-company-emails-2020-12-08 222.xlsx (40 KB)
- IEC EX Dust Proof (pdf) (230 KB)
- IEC Ex Explosion Proof (pdf) (230 KB)
- INMETRO Dust Proof (pdf) (720 KB)
- INMETRO Explosion Proof (pdf) (720 KB)
- SK Model News (pdf) (228 KB)
- SQ Model News (pdf) (228 KB)
- UL Explosion Proof (pdf) (181 KB)
- UL No Spark (pdf) (181 KB)
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