Ex belt alignment switch

Ex ZS 73 SR 1Ö/1S-3D - 3m - mid-position

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Product features

Ex
  • Ex zone 22

  • Metal enclosure

  • 2 contacts

  • Cable

  • Mid-position centered (lever springs back to mid-position)

  • Belt alignment lever adjustable in 12° steps using a self-locking mechanism

  • Belt-alignment roller made of stainless steel 1.4301 / AISI 304

Technical data

Applied standards
EN 60947-5-1, EN IEC 60079-0, EN 60079-31, 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
IP65/IP67 (IEC/EN 60529)
B10d (10 % load)
2 million
TM
max. 20 years
Switch insert
1 x Ex 14
Contact material
silver
Switching system
slow action, positive break NC contacts A
Switching elements
1 NC/1 NO contact, type Zb
Connection
cable H05VV-F
Cable cross-section
4 x 0.75 mm² (incl. conductor ferrules)
Cable length
3 m
Rated impulse withstand voltage Uimp
4 kV
Rated insulation voltage Ui
250 V
Conventional thermal current Ithe
6 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
Ambient temperature
–20 °C … +65 °C
Mechanical life
> 1 million operations
Ex marking
L II 3D Ex tc IIIC T80°C Dc
Impact energy
max. 7 J
Weight
1288 g

Dimensional drawing

Further drawings

Switching diagram

Downloads

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Mounting and wiring instructions – Ex ZS 73 SR-3D

German, English, French, Italian, Portuguese

PDF2 MB 13.11.2025

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Ex ZS 73 SR 1Ö/1S-3D - 3m - mid-position

Article no.: on request

This product is only available on request, please contact our sales team. contact us