ES-4321
Proximity/Limit Switch | Explosion Proof / Flameproof
ATEX Ex d/db/tb, IECEx Ex d/db/tb, UKEx Ex d/db/tb IIC / IIIC T6 SPCO/SPDT
Our ES series switches are highly dependable, hermetically sealed position sensors for use in the most arduous and hazardous applications. They require the use of a magnetic target to operate.
Properties
| Body Shape | Cylindrical |
| Body Material | 316L Stainless Steel |
| Contact Arrangement | SPCO / SPDT (Form C) |
| Contact Material | Rhodium (Tungsten optional) |
| Mounting Thread | M18x1.0 (35.00mm / 1.38" long) c/w 2 x locknuts |
| Connection | PVC Cable |
| Conduit Entry | PG9 |
| Termination | Cabled |
| Certification & Approvals | IECEx, ATEX, UKEx Ex d/db/tb |
| Hazardous Location | Zone 1, 2, 21 and 22 |
| Gas Group | IIC |
| Dust Group | IIIC |
| Temperature Class (T Rating) | T6 |
| Operating Temperature | -20°C to +70°C / -4°F to +158°F |
| Sensing Range with Magnet | Up to the maximum in the magnet table |
| 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 | Magnetically Actuated |
Sensing Ranges
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Sensing range depends on the magnetic target used. We have a large range of magnetic targets available. Please contact us for more information.
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Dimensions
Connections
Supplied with 2m (79") of 3 core PVC Cable (18 AWG). Custom lengths available on request. Cable OD: 6.5mm (0.256"), rated to 300V.
Certifications & Approvals
| Certification | Compliance | Certificate No. | |
|---|---|---|---|
| ATEX | EN IEC 60079-0: 2018, EN 60079-1: 2014, EN 60079-31: 2014 | Baseefa14ATEX0256X |  |
| CCC-Ex / NEPSI (China) | GB/T 3836.1-2021, GB/T 3836.2-2021, GB/T 3836.31-2021 | 2020322304000801 | |
| IECEx | IEC 60079-0:2017, IEC 60079-1:2014-06, IEC 60079-31:2013 | IECExBAS14.0121X | |
| Safety Integrity Level (SIL) | IEC 61508:2010; SC3 ¦ SIL 2 with HFT=0 (1oo1) and SIL 3 with HFT =1 (1oo2) | FSP18015 | |
| UKEx | EN IEC 60079-0:2018 EN 60079-1:2014 EN 60079-31:2014 | BAS21UKEX0756X | |