IECEx/ATEX Exd/db/tb Zone 1 DPDT/DPCO Proximity Switch - FS-C-D Series
FS-C-D Series overview
With its compact design and reliable signal detection, the FS-C-D Series Proximity Switches (M18 Thread) are ideal for applications that require reliable signal detection at Ex db IIC T6 Gb and Ex tb IIIC T85°C Db levels. At distances of up to 2.3mm (0.09"), it detects ferrous materials, including carbon steel and stainless steel (17/4 or 400 series) using advanced magnetic sensing technology.
FS-C-D Series products are certified for hazardous areas as follows.
| 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 |
A standout feature is its volt-free DPCO/DPDT (Double Pole Changeover/Double Pole Double Throw, 2x Form C) contacts, provided as standard. These contacts enhance the switch's flexibility, enabling it to control multiple circuits and perform changeover functions in complex applications seamlessly.
FS-C-D proximity switches meet the stringent requirements of IEC 61508:2010, specifically Routes 1H and 1S, achieving a Systematic Capability (SC3) classification.
With SIL 2 with HFT=0 (1oo1) and SIL 3 with HFT=1 (1oo2) configurations, they are suitable for integration into safety-related systems performing critical safety functions. They are therefore ideal for applications requiring robust performance and precise signal reliability with high integrity.
- Body Shape
- Cylindrical
- Contact Arrangement
- DPCO / DPDT (2x Form C)
- Max Current
- 4A
- Temperature Class (T Rating)
- T6/T4 (Can also be used in T5, T3)
- Environmental Protection
- IP 66, 67 & 68 / NEMA 4, 4X, 6, & 6P
- Safety Rating
- SC3; SIL 2 with HFT=0 (1oo1) and SIL 3 with HFT =1 (1oo2)
- Dimensions
- M18x1.0 (44.50mm / 1.75" long)
- Mounting
- M18x1.0 (44.50mm / 1.75" long)
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





