Ex safety switch with separate actuator

Ex 97 AZ-3G/D

  • Ex zone 2 and 22

  • Thermoplastic enclosure, double insulated X

  • High degree of protection IP66 / IP67

  • Wiring compartment

  • Mounting details to EN 50047

  • 1 Ex"e" cable gland M20x1.5 included in delivery

  • 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 IEC 60079-7, EN 60079-31, EN ISO 13849-1, EN ISO 14119


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


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



Switch type

type 2

Coding level

low coding

Degree of protection

IP66 / IP67 (EN 60079-0 + 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


screw connection terminals

Cable cross-section

min. 0.75 mm² (AWG 18), max. 1.5 mm² (AWG 16), incl. conductor ferrules

Cable entry

M20 x 1.5; screwing depth max. 9 mm; use only Ex approved and certified cable glands with min. degree of protection IP66/IP67 and suitable for the specified ambient temperature range

Rated impulse withstand voltage Uimp

4 kV

Rated insulation voltage Ui

250 V

Rated operating current/voltage Ie/Ue

max. 3 A or 6 A / max. 250 V

Utilisation category


Mechanical life

> 1 million operations

Impact energy

max. 4 J

Temperature class


Ambient temperature

–20 °C … +45 °C max. 6 A,
–20 °C … +60 °C max. 3 A

Short-circuit protection

3 A / 6 A gG/gN fuse

Ex marking

L II 3G Ex dc ec IIC T6 Gc X,
L II 3D Ex tc IIIC T80 °C Dc X


Mounting and wiring instructions – Ex 97 AZ-3G/D

German, English, French, Italian, Portuguese

PDF 3 MB 18.09.2023
Please go to the relevant product pages for additional downloads.

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