Ex ES 98 ST-3G/D


  • Ex zone 2 and 22
  • Metal enclosure
  • Design to EN 50041
  • Wiring compartment
  • Actuator can be repositioned in factory by 4 x 90°
  • The actuator is not included in the delivery of the switches

Technical data

StandardsEN 60947-5-1; EN 60079-0,
EN 60079-1, EN 60079-7,
EN 60079-31; EN ISO 13849-1;
EN ISO 14119
EnclosureCorrosion-resistant aluminium, powder-coated, similar to RAL 7016
CoverCorrosion-resistant aluminium, powder-coated, similar to RAL 1003
Actuatorstainless steel 1.4301
Switch typetype 2
Coding levellow coding
Degree of protectionIP 67 to IEC/EN 60529
Contact materialsilver
Switching systemslow action, positive break NC contacts
Switching elements1 NC/1 NO contact or 2 NC contacts, type Zb
Connectionscrew connection terminals
Cable cross-sectionmax. 1.5 mm² (incl. conductor ferrules)
Cable entry1 x M20 x 1.5 for
cable section 5 … 9 mm
B10d (10 % Load)2 million
TMmax. 20 years
Uimp4 kV
Ui250 V
Ithe6 A
Ie/Ue6 A/250 VAC; 0.25 A/230 VDC
Utilisation categoryAC-15; DC-13
Max. fuse rating6 A gG/gN fuse
Ambient temperatureT6: –20 °C … +40 °C;
T5: –20 °C … +60 °C
Mechanical life> 1 million operations
Repeat accuracy of switching points± 0.1 mm
Impact energymax. 7 J
Ex marking II 3G Ex dc ec IIC T6/T5 Gc,
II 3D Ex tc IIIC T80 °C/T95 °C Dc
Ordering details

Slow action

1 NC/1 NO contact

Type   Material no.
Ex ES 98 ST-11-3G/D 1454699

Slow action

2 NC contacts

Type   Material no.
Ex ES 98 ST-02-3G/D 1454701

Angled actuators

Type   Material no.
Angled actuator AZ 335/355-B5 1170538
Angled actuator AZ 335/355-B5-Flex 1182126

Flexible actuators

Type   Material no.
Flexible actuator AZ 335/355-B6 1170540
Type   Material no.
Lockout tag SZ 16/335 1170535
Type   Material no.
Slot sealing plug AZ 335/355-1990 1172965