Ex ZS 92 SR

  • Ex zone 21
  • Cold-resistant version down to -30 °C available
  • Corrosion-resistant aluminium enclosure
  • Screws and belt-alignment roller made of stainless steel
  • With staggered contacts, adjustable from 5° to 35°
  • Belt alignment lever adjustable in 12° steps using a self-locking mechanism
  • Back and base mounting possible

Technical data

Applied standards EN 60947-5-1, EN 60079-0, EN 60079-31
Enclosure aluminium, corrosion-resistant, powder-coated, passivated, impact resistant, signal red, similar to RAL 3001
Cover aluminium, corrosion-resistant, powder-coated, passivated, impact resistant, signal yellow, similar to RAL 1003
Tightening torque cover screws: max. 2.5 Nm
Degree of protection -10°C: IP 65 (EN 60079-0 + IEC/EN 60529)
-20°C/-30°C: IP 66 (EN 60079-0 + IEC/EN 60529)
B10d (10 % load) 2 million
TM max. 20 years
Contact material silver
Switching elements 2 NC/2 NO contacts, type Zb
Switching system snap action, positive break NC contacts
Switching points adjustable 5° to 35°; pre-adjustment setting 2 x 10°
Connection screw connection terminals
Cable cross-section min. 0.5 mm², max. 2.5 mm² (incl. conductor ferrules)
Cable entry 2 x M25 x 1.5
Rated impulse withstand voltage Uimp 6 kV
Rated operating isolation voltage Ui 250 V
Conventional thermal current Ithe 2 A / 4 A / 6 A
Conditional short-circuit current 1100 A
Utilisation category AC-15
Rated operating current/voltage Ie/Ue max. 2 A/4 A/6 A / 250 VAC
Short-circuit protection 2 A / 4 A / 6 A gG/gN fuse
Mechanical life > 1 000 000 operations at max. 45° operating angle
Operation cycles max. 600/h
Ambient temperature –10 °C … +55 °C, –20 °C … +55 °C or –30 °C … +65 °C (depending on the variant)
Degree of pollution 3
Ex marking II 2D Ex tb IIIC T80°C Db
IECEx Ex tb IIIC T80 °C Db
Approvals BVS 19 ATEX E 076
IECEx BVS 19.0074

Ordering details

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

Type   Material no.  
Type    Material no.   
Ex ZS 92 SR 22 P - 2D stock type Standard versions, in stock or available at short notice 1462764
Type    Material no.   
Ex ZS 92 SR 22 P -20°C - 2D on request Produced to order.
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.
Type    Material no.   
Ex ZS 92 SR 22 P -30°C - 2D 1306580
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.