Proximity Switch - Ferrous

High Temperature IECEx Exia Proximity Switch - FS-K-D Series
Certifications / Approvals







FS-K-D Series overview
The FS-K-D Series Proximity Switch (M18 Thread) meets stringent safety standards and has been IECEx-Exia certified, making it suitable for use in hazardous environments.
With detection ranges up to 2.3mm (0.09"), these switches reliably detect ferrous materials, including carbon steel and stainless steel (17/4 or 400 series). As standard, they feature volt-free DPCO/DPDT (2x Form C) contacts.
FS-K-D Series is certified for hazardous areas as listed below.
Explosion Proof: | IECEx & ATEX Exd (Zone 1 & Zone 21) |
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 FS-K-D Series is designed to comply with IEC 61508:2010 Routes 1H and 1S, achieving Systematic Capability (SC3) as an element/subsystem. SIL 2 with HFT=0 (1oo1) and SIL 3 with HFT=1 (1oo2) are supported by this module for integration into safety-related systems. It meets the IECEx Exia standards, making it ideal for environments requiring intrinsic safety and robust performance.
- Body Shape
- Cylindrical
- Body Material
- 316L Stainless Steel
- Contact Arrangement
- DPCO / DPDT (2x Form C)
- Contact Material
- Palladium-Silver
- Max Current
- 3A
- Conduit Entry
- No Conduit Entry
- 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 3 / SC3
- Actuation
- Ferrous Actuated (Magnet Optional)
- Mounting Thread
- M18x1.0 (44.50mm / 1.75" long) c/w 2 x locknuts
- Sensing Range with Magnet
- <12mm (0.47")
- Range (ferrous target)
- 2.3mm|0.09"
- 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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