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!

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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 EEx geprüft II 2G Ex mb II T6,
EEx geprüftII 2D Ex mbD 21 T80°C
IECEx Ex mb II T6
Approvals BVS 08 ATEX E150 X;
IECEx BVS 08.0054X