Ex 98 SR

  • Ex zone 1 and 21
  • Cold-resistant down to -40 °C
  • Metal enclosure
  • 2 contacts
  • Design to EN 50041
  • Wiring compartment
  • Adjustable-length rod lever with nylon roller
  • Belt alignment lever can be adjusted in 13° steps using a self-locking mechanism
  • For light- and medium-heavy applications
  • Special version only for gas Ex zone 2 and dust Ex zone 22 available
  • Attention: Please state required international approvals with your order!

Technical data

Applied standards EN 60947-5-1, EN 60079-0, EN 60079-1, EN 60079-7, EN 60079-31, EN ISO 13849-1
Enclosure aluminium die-cast, corrosion-resistant, powder-coated, anthracite grey, similar to RAL 7016
Cover stainless steel 1.4401, powder-coated, signal yellow, similar to RAL 1003
Sealing silicone
Degree of protection IP 66 to IEC/EN 60529
B10d (10 % load) 2 million
TM max. 20 years
Contact material silver
Switching system slow or snap action
Switching elements 1 NC/1 NO contact or 2 NC contacts, type Zb
Connection screw connection terminals
Cable cross-section min. 0,75 mm² / AWG 18, max. 1,5 mm² / AWG 16, incl. conductor ferrules
Cable entry 1 x M20 x 1.5 (incl. 1 cable gland)
Clamping range 7 … 13 mm
Rated impulse withstand voltage Uimp 4 kV
Rated operating isolation voltage Ui 250 V
Rated operating current Ie max. 4.4 A T6 / max. 6.6 A T5
Rated operating voltage Ue max. 250 VAC; 125 VDC
Utilisation category AC-15; DC-13
Short-circuit protection 4 A / 6 A gG/gN fuse
Ambient temperature T6: -40° C … +70° C (max. 4.4 A)
T5: -40° C … +70° C (max. 6.6 A)
Mechanical life > 1 million operations
Operation cycles max. 1800/h
Repeat accuracy of switching points ± 0.1 mm
Impact energy max. 7 J
Ex marking II 2G Ex db eb IIC T6/T5 Gb,
II 2D Ex tb IIIC
T80°C/T95°C Db
IECEx Ex db eb IIC T6/T5 Gb,
Ex tb IIIC T80°C/T95°C Db
Approvals DMT 01 ATEX E 178
IECEx BVS 07.0014

Ordering details

Slow action, 1 NC/1 NO contact

Type   Material no.  
Type    Material no.   
Ex ES 98 SR-11 -40°C stock type Standard versions, in stock or available at short notice 1420735
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Slow action, 2 NC contacts

Type   Material no.  
Type    Material no.   
Ex ES 98 SR-02 -40°C stock type Standard versions, in stock or available at short notice 1420738
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Slow action, 1 NC/1 NO contact with overlapping

Type   Material no.  
Type    Material no.   
Ex ES 98 SR-11U -40°C 1420740
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Snap action, 1 NC/1 NO contact

Type   Material no.  
Type    Material no.   
Ex EM 98 SR-11 -40°C stock type Standard versions, in stock or available at short notice 1443731
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.