Ex ZS 92 SR-3D

  • Ex zone 22
  • Temperature resistant from -20 °C to +55 °C
  • 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
  • Indicator lamp 24 VAC/DC (red)

Technical data

Applied standards EN 60947-5-1, EN 60079-0, EN 60079-31
Enclosure aluminium, corrosion-resistant, powder-coated, passivated, impact resistant, anthracite grey, similar to RAL 7016
Cover aluminium, corrosion-resistant, powder-coated, passivated, impact resistant, signal yellow, similar to RAL 1003
Actuator stainless steel
Calotte polycarbonate, impact resistant, self-extinguishing UL 94 V-0, red transparent
Tightening torque cover screws: max. 2.5 Nm
actuator screw: max. 15 Nm
Degree of protection 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 insulation 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 –20 °C … +55 °C max. 2 A,
–20 °C … +50 °C max. 4 A,
–20 °C … +45 °C max. 6 A
Degree of pollution 3
Rated operating voltage range UB Indicator lamp: 24 VAC/DC +10/-15 %
Rated operating current Ie Indicator lamp: ∼ 15 mA
Ex marking II 3D Ex tc IIIC T80°C Dc

Ordering details

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

Type   Material no.  
Type    Material no.   
Ex ZS 92 SR 22 P L -20°C-3D 1306727
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.