Ex ST 14

  • Ex zone 1 and 21
  • Thermoplastic enclosure
  • With pre-wired cable
  • Double insulated
  • Cold-resistant version down to -40 °C available on request
  • Version with cable entry on side available on request
  • Special version only for 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 60947-5-1; EN 60079-0,
EN 60079-1, EN 60079-31;
EN ISO 13849-1; EN ISO 14119
Enclosureglass-fibre reinforced, shock-proof thermoplastic, self-extinguishing UL 94 V-0
Switch typetype 2
Coding levellow coding
Actuatorstainless steel 1.4301
Degree of protectionIP 65 to IEC/EN 60529
Contact materialsilver
Switching systemslow action, positive break NC contacts
Switching elements1 NC/1 NO contact or 2 NC contacts, type Zb
Connectionpre-wired cable H05VV-F
Cable cross-section4 x 0.75 mm² (incl. conductor ferrules)
Cable length2, 5 or 10 m
B10d (10 % load)2 million
TMmax. 20 years
Rated impulse withstand voltage Uimp4 kV
Rated operating isolation voltage Ui250 V
Conventional thermal current ItheT6: 6 A, T5: 3 A
Rated operating current/voltage Ie/Ue6 A/250 VAC; 0.25 A/230 VDC;
4 A/24 VDC
Utilisation categoryAC-15; DC-13
Max. fuse rating6 A gG/gN fuse
Positive break travel8 mm
Ambient temperatureT6: –20 °C … +65 °C,
T5: –20 °C … +75 °C, +90 °C with max. 3 A
Mechanical life> 1 million operations
Impact energymax. 4 J
Ex marking II 2G Ex db IIC T6/T5 Gb,
II 2D Ex tb IIIC
T80 °C/T95 °C Db
IECEx Ex db IIC T6/T5 Gb,
Ex tb IIIC T80 °C/T95 °C Db
ApprovalsPTB 03 ATEX 1070 X
IECEx PTB 06.0098X

Ordering details

Slow action

1 NC/1 NO contact

Type   Material no.  
Type    Material no.   
Ex ST 14 1Ö/1S - 2m 1045467
Type    Material no.   
Ex ST 14 1Ö/1S - 5m stock type Standard versions, in stock or available at short notice 1045463
Type    Material no.   
Ex ST 14 1Ö/1S - 10m 1045450
Type    Material no.   
Ex ST 14 1Ö/1S - 10m / -40°C 1390873
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Slow action

2 NC contacts

Type   Material no.  
Type    Material no.   
Ex ST 14 2Ö - 2m 1184170
Type    Material no.   
Ex ST 14 2Ö - 5m 1179314
Type    Material no.   
Ex ST 14 2Ö - 10m 1178931
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.   
Straight actuator ST 14-B1 stock type Standard versions, in stock or available at short notice 1040840
Type   Material no.  
Type    Material no.   
Flexible actuator ST 14-B3 stock type Standard versions, in stock or available at short notice 1040842
Type   Material no.  
Type    Material no.   
Angled actuator ST 14-B5 stock type Standard versions, in stock or available at short notice 1040841