Ex ZS 90 S

  • Ex zone 1 and 21
  • Thermoplastic enclosure
  • 4 contacts
  • Wire length up to 2 x 50 m
  • Release by lever
  • Wire pull and breakage detection
  • N.B.: Please state required international approvals with your order!

Technical data

Applied standardsEN 60947-5-1; EN 60079-0,
EN 60079-1, EN 60079-31;
EN ISO 13850; EN ISO 13849-1
Enclosurethermoset, UV resistant to EN ISO 4892
Coverthermoset, UV resistant to EN ISO 4892
Switch insert2 x Ex 14
Degree of protectionIP 65 to IEC/EN 60529
Contact materialsilver
Switching systemslow action, positive break NC contacts
Switching elements2 NC/2 NO contacts, type Zb
Connectionpre-wired cable H05VV-F
Cable length3 m
B10d (10 % load)200 000
TMmax. 20 years
Rated impulse withstand voltage Uimp4 kV
Rated operating isolation voltage Ui250 V
Conventional thermal current ItheT6: 6 A, T5: 3 A
Utilisation categoryAC-15; DC-13
Rated operating current/voltage Ie/Ue6 A/250 VAC; 0.25 A/230 VDC
Short-circuit protection6 A gG/gN fuse
Ambient temperatureT6: –20 °C … +65 °C,
T5: –20 °C … +75 °C, +90 °C with max. 3 A
Mechanical life> 100 000 operations
Max. wire length2 x 50 m
Impact energymax. 7 J
Ex marking II 2G Ex db IIC T6/T5 Gb,
II 2D Ex tb IIIC
T80 °C/T95 °C Db
IECEx Ex db IIC T6/T5 Gb,
Ex tb IIIC T80 °C/T95 °C Db
ApprovalsPTB 03 ATEX 1070 X*
IECEx PTB 06.0098X*
*referring to the switch insert