Ex ST 14

Features/Options

  • 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 approvals for Russia, China and Brazil with your order!
Note
  • The actuator is not included in the delivery of the switches

Technical data

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 (PA 66), self-extinguishing UL 94-V0
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
Connectioncable H05VV-F, 4 x 0.75 mm²
Cable length2, 5 or 10 m
B10d (10 % Load)2 million
TMmax. 20 years
Uimp4 kV
Ui250 V
ItheT6: 6 A, T5: 3 A
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

on request
Ordering details
Type code

Slow action

1 NC/1 NO contact

Type   Material no.
Ex ST 14 1Ö/1S - 2m 1045467
Ex ST 14 1Ö/1S - 5m 1045463
Ex ST 14 1Ö/1S - 10m 1045450
Ex ST 14 1Ö/1S - 10m / -40°C 1390873

Slow action

2 NC contacts

Type   Material no.
Ex ST 14 2Ö - 2m 1184170
Ex ST 14 2Ö - 5m 1179314
Ex ST 14 2Ö - 10m 1178931
Actuators
Type   Material no.
Straight actuator ST 14-B1 1040840
Type   Material no.
Flexible actuator ST 14-B3 1040842
Type   Material no.
Angled actuator ST 14-B5 1040841