Ex HS Si 4

  • Ex zone 1 and 21
  • Thermoplastic enclosure
  • Hall elements, coded
  • Actuation from front
  • Switching distance up to 7 mm
  • With pre-wired cable
  • Special version only for gas Ex zone 2 and dust Ex zone 22 available
  • N.B.: Please state required international approvals with your order!
Note
  • The actuator is not included in the delivery of the switches

Technical data

Applied standardsEN 60079-0, EN 60079-18;
EN 60947-5-2; EN 60947-5-3;
EN ISO 14119; EN ISO 13849-1;
EN 62061
Enclosureglass-fibre reinforced, shock-proof thermoplastic, self-extinguishing UL 94 V-0
Sensor typetype 4 interlocking device
Coding levellow coding
Defined objectactuator Ex MC 4
Degree of protectionIP 67 to IEC/EN 60529
Switching systemHall sensor, 2 galvanically separated channels, semiconductor
1 NC/1 NO or 2 NC contacts
Connectioncable 6 x AWG 26
Cable length2, 5 or 10 m, max. 15 m
 
Safety-relevant data:
EN ISO 13849-1Performance Level PL e
Category4
MTTFd> 100 years
DC/DCavg> 99 %
EN 62061SIL CL 3
PFHd≥ 2.47 x 10-8 1/h
TMmax. 20 years
 
Rated operating voltage Ue24 VDC
Rated operating voltage range UB10 … 30 VDC
Rated operating current Iemax. 40 mA per channel
Utilisation categoryDC-12
No-load supply current I0max. 6 mA per channel
Voltage drop at Iemax. 2.5 V
Switch-on/switch-off time< 1 ms
Max. fuse rating< 50 mA internal reversible fuse
Switching frequencymax. 100 Hz
Safety classII
Degree of pollution3
Ambient temperature–20 °C … +60 °C
Storage and shipping temperature–20 °C … +60 °C
Mechanical life> 10 million operations
Switching distancessn 7 mm, sao 6 mm, sar 20 mm
Repeatability≤ 5 %
Impact energymax. 7 J
Ex marking II 2G Ex mb IIC T6 Gb,
II 2D Ex mb IIIC T80°C Db
IECEx Ex mb IIC T6 Gb
Ex mb IIIC T80°C Db
ApprovalsBVS 08 ATEX E 150 X
IECEx BVS 08.0054X
NoteThe safety-related data are only valid in combination with a safety module.

Ordering details

1 NC/1 NO contact

Type   Material no.  
Type    Material no.   
Ex HS Si 4 1Ö/1S - 2m 1189003
Type    Material no.   
Ex HS Si 4 1Ö/1S - 5m stock type Standard versions, in stock or available at short notice 1187202
Type    Material no.   
Ex HS Si 4 1Ö/1S - 10m 1185205
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

2 NC contacts

Type   Material no.  
Type    Material no.   
Ex HS Si 4 2Ö - 2m 1189005
Type    Material no.   
Ex HS Si 4 2Ö - 5m 1188792
Type    Material no.   
Ex HS Si 4 2Ö - 10m 1189918
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Actuators

Type   Material no.  
Type    Material no.   
Actuating magnet coded Ex MC 4 stock type Standard versions, in stock or available at short notice 1182903
Type    Material no.   
Actuating magnet coded Ex MC 4/90° stock type Standard versions, in stock or available at short notice 1184680