Proximity Switch - Ferrous

IECEx/ATEX Proximity Switch - Integral Junction Box - FS-D Series
Certifications / Approvals




FS-D Series overview
A robust and versatile solution, the FS-D Proximity Switch (5/8" UNF Thread) is designed for Ex db IIC T6 Gb and Ex tb IIIC T85°C Db applications requiring dependable signal detection.
Engineered with proven magnetic technology, it reliably senses ferrous materials, such as carbon steel or stainless steel (17/4 or 400 series), with a detection range of up to 2.5mm (0.1"). It is designed with volt-free SPCO/SPDT (Form C) contacts as standard, which makes it compatible with a wide range of applications.
Due to its compliance with IECEx and UL certifications, the FS-D Series is ideal for hazardous environments with strict safety standards. Additionally, it features a unique integrated junction box/connection head design, available in multiple wireable options (W, WL, WLR). This eliminates the need for additional components, enhancing functionality and reliability in space-constrained environments.
The FS-D Series is covered by the following hazardous area certifications.
Explosion Proof: | IECEx & ATEX Exd (Zone 1 & Zone 21) ¦ UL/CSA (Class I & II, Div1 & Div2) |
Intrinsically Safe: | IECEx & ATEX Exia (Zone 0 & Zone 20) ¦ UL/CSA IS (Zone 0) |
Other Regional Approvals Include: | EAC/TRCU, INMETRO, KCs, CCOE/PESO, ECAS ex, NEPSI/CQST |
The series meets the rigorous requirements of IEC 61508:2010 Routes 1H & 1S, achieving Systematic Capability (SC3) as an element/subsystem. It is suitable for safety-related systems performing functions up to SIL 2 with HFT=0 (1oo1) and SIL 3 with HFT=1 (1oo2). With advanced certification, cutting-edge design, and robust performance, the FS-D Series is an ideal choice for industrial and safety applications.
- Body Shape
- Cylindrical
- Body Material
- 316L Stainless Steel
- Contact Arrangement
- SPCO / SPDT (Form C)
- Contact Material
- Palladium-Silver
- Max Current
- 4A
- Conduit Entry
- 1/2" NPT
- Temperature Class (T Rating)
- T3 / T4 / T6
- Operating Temperature Range
- -60°C to +204°C / -76°F to +400°F
- Sensing Face Pressure Rating
- 2000psi / 138 bar
- Environmental Protection
- IP 66, 67 & 68 (24hrs at 30m)/ NEMA 4X & 6P
- Safety Rating
- SIL 2 / SC3
- Actuation
- Ferrous Actuated (Magnet Optional)
- Mounting Thread
- 5/8"-18 UNF (68.60mm / 2.70" long) c/w 2 x locknuts
- Sensing Range with Magnet
- <12mm (0.47")
- Range (ferrous target)
- 2.5mm|0.10"
- Repeatability
- Approx. 0.05mm (0.002")
- Response Time
- 8 ms
- Differential / Hysteresis
- < 0.51mm (0.020")
All of our products are also available as Ordinary Location / General Industrial.
Please select your certification and protection concept for your specific requirement from the Part Number builder below
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Installation and Operating Instructions |
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Installation and Operating Instructions |
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Installation and Operating Instructions |
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Installation and Operating Instructions |
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Installation and Operating Instructions |
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Installation and Operating Instructions |
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Installation and Operating Instructions |
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Installation and Operating Instructions |
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