Ex safety switch with separate actuator

Ex ST 14

  • Ex zone 1 and 21

  • Thermoplastic enclosure

  • With pre-wired cable

  • Double insulated X

  • Attention: Please state required international approvals with your order!

  • The actuator is not included in the delivery of the switches

Technical data

Applied standards

EN 60947-5-1, EN IEC 60079-0, EN 60079-1, EN 60079-31, EN ISO 13849-1, EN ISO 14119


thermoplastic, glass-fibre reinforced, shockproof, self-extinguishing UL 94 V-0


stainless steel 1.4301

Switch type

type 2

Coding level

low coding

Degree of protection

IP65 (IEC/EN 60529)

B10d (10 % load)

2 million


max. 20 years

Contact material


Switching system

slow action, positive break NC contacts A

Switching elements

1 NC/1 NO contact or 2 NC contacts, type Zb


pre-wired cable H05VV-F

Cable cross-section

4 x 0.75 mm² (incl. conductor ferrules)

Cable length

2, 5 or 10 m

Rated impulse withstand voltage Uimp

4 kV

Rated insulation voltage Ui

250 V

Conventional thermal current Ithe

T6: 6 A, T5: 3 A

Rated operating current/voltage Ie/Ue

6 A/250 VAC; 0.25 A/230 VDC

Utilisation category

AC-15; DC-13

Short-circuit protection

6 A gG/gN fuse

Positive break travel

8 mm

Ambient temperature

T6: –20 °C … +65 °C,
T5: –20 °C … +75 °C, +90 °C with max. 3 A

Mechanical life

> 1 million operations

Ex marking

L II 2G Ex db IIC T6/T5 Gb,
L 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


PTB 03 ATEX 1070 X
IECEx PTB 06.0098X
Ö f d a Ô


Mounting and wiring instructions – Ex ST 14

German [de], English [en], French [fr], Italian [it], Portuguese [pt], Russian [ru]

PDF 2 MB 18.09.2023
Please go to the relevant product pages for additional downloads.

Variants / Options

The following variants / options are available on request:

  • Cable entry on side
  • Special version only for dust Ex zone 22
  • Cold-resistant version down to -40 °C
to your contact persons