Ex emergency pull-wire switch

Ex ZS 73 S-3D


  • Ex zone 22

  • Metal enclosure

  • 2 contacts

  • Wire length up to 2 x 100 m

  • Release by push button (VD)

  • Wire pull and breakage detection

Technical data

Applied standards

EN 60947-5-1, EN 60947-5-5, EN IEC 60079-0, EN 60079-31, EN ISO 13850, EN ISO 13849-1

Enclosure

aluminium die-cast, enamel finish

Cover

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

Degree of protection

IP67 (IEC/EN 60529)

B10d (10 % load)

200 000

TM

max. 20 years

Contact material

silver

Switching system

slow action, positive break NC contacts A

Switching elements

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

Connection

screw connection terminals

Cable entry

1 x M20 x 1.5 (incl. 1 cable gland)

Clamping range

6 … 12 mm

Rated impulse withstand voltage Uimp

4 kV

Rated insulation voltage Ui

250 V

Conventional thermal current Ithe

6 A

Utilisation category

AC-15; DC-13

Rated operating current/voltage Ie/Ue

6 A/250 VAC; 0.25 A/230 VDC

Short-circuit protection

6 A gG/gN fuse

Ambient temperature

–20 °C … +60 °C

Mechanical life

> 100 000 operations

Max. wire length

2 x 100 m

Impact energy

max. 7 J

Ex marking

L II 3D Ex tc IIIC T80°C Dc

Downloads

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Mounting and wiring instructions – Ex ZS 73-3D / Ex ZS 73 S-3D

German, English, French, Italian, Portuguese, Russian

PDF 5 MB 29.09.2023
Please go to the relevant product pages for additional downloads.
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