Ex 98 SR

Features/Options

  • 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
  • For light- and medium-heavy applications
  • Special version only for gas Ex zone 2 and dust Ex zone 22 available
  • N.B.: Please state required international approvals with your order!

Technical data

StandardsEN 60947-5-1; EN 60079-0,
EN 60079-1, EN 60079-7,
EN 60079-31; EN ISO 13849-1
EnclosureCorrosion-resistant aluminium, powder-coated, similar to RAL 7016
CoverStainless steel 1.4401, powder-coated, similar to RAL 1003
Degree of protectionIP 66 to IEC/EN 60529
Contact materialsilver
Switching systemslow or snap action
Switching elements1 NC/1 NO contact or 2 NC contacts, type Zb
Connectionscrew connection terminals, min. 0,75 mm² AWG 18, max. 1,5 mm² AWG 16, incl. conductor ferrules
Cable entry1 x M20 x 1.5 for
cable diameter 5 … 9 mm
B10d (10 % Load)2 million
TMmax. 20 years
Uimp4 kV
Ui250 V
Iemax. 4.4 A T6 / max. 6.6 A T5
Uemax. 250 VAC; 125 VDC
Utilisation categoryAC-15; DC-13
Max. fuse rating6 A gG/gN fuse
Ambient temperatureT6: -40° C … +70° C (max. 4.4 A)
T5: -40° C … +70° C (max. 6.6 A)
Mechanical life> 1 million operations
Operation cycles1800/h
Repeat accuracy of switching points± 0.1 mm
Impact energymax. 7 J
Ex marking II 2G Ex de IIC T6/T5 Gb,
II 2D Ex tb IIIC
T80 °C/T95 °C Db
IECEx Ex de IIC T6/T5 Gb,
Ex tb IIIC T80 °C/T95 °C Db
ApprovalsDMT 01 ATEX E 178
IECEx BVS 07.0014
Ordering details

Slow action

1 NC/1 NO contact

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.
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.
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.
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.