Ex HS Si 4
Features/Options
- Ex zone 1 and 21
- Thermoplastic enclosure
- Hall elements, coded
- Actuation from front
- Switching distance up to 8 mm
- Special version only for dust Ex zone 22 available
- The actuator is not included in the delivery of the switches
- N.B.: Please state required approvals for China and North America with your order!
Product image

Technical data
| Standards | EN 60079-0; EN 60079-18; EN 61241-0; EN 61241-18; EN 60947-5-3 /PDF-M*; EN 1088; EN ISO 13849-1 |
|---|---|
| Enclosure | glass-fibre reinforced thermoplastic, self-extinguishing, A3XZG5 |
| Actuator | actuator Ex MC 4 order No. 05.00.8222 |
| Degree of protection | IP 67 to IEC/EN 60529 |
| Switching system | hall sensor, 2 galvanically separated channels, 1 NC/1 NO or 2 NC contacts |
| Connection | cable 6 x AWG 26 |
| TM | max. 20 years |
| MTTFd | >100 years |
| Utilisation category | DC-13, DC-12 |
| Switching voltage | 24 VDC |
| Switching current | max. 40 mA per channel |
| Switching capacity | max. 1.2 W |
| Max. fuse rating | < 50 mA internal reversible fuse |
| Switching frequency | max. 1000 Hz |
| Ambient temperature | -20 °C … +60 ºC |
| Operating distances: | |
| smax | 8 mm |
| sao | 6 mm |
| sar | 20 mm |
| Axial misalignment | max. 4 mm |
| Ex-marking | II 2G Ex mb II T6, II 2D Ex mbD 21 T80°C IECEx Ex mb II T6 |
| Approvals | BVS 08 ATEX E150 X; IECEx BVS 08.0054X ![]() |





II 2G Ex mb II T6,







