Ex 95 WHKM 1Ö/1S

Ex position switch with safety function
Material number: 1049994
(Material number old: 95018301)
  • Ex zone 1 and 21
  • Thermoplastic enclosure
  • Design to EN 50047
  • Wiring compartment
  • Double insulated
  • Actuator: Offset metal roller lever with collar WHKM
  • Actuating speed max. 0.5 m/s with a vertical actuating angle of 40°
  • Watertight collar for protection against penetration of dirt
  • Wear-resistant plastic roller
  • Actuator can be repositioned by 4 x 90°
  • Actuation only possible from right-hand side
  • Free movement of actuator from left-hand side
  • N.B.: Please state required international approvals with your order!
  • With metal roller available on request

Technical data

Applied standardsEN 60947-5-1; EN 60079-0,
EN 60079-1, EN 60079-7,
EN 60079-14, EN 60079-31;
EN ISO 13849-1; EN ISO 14119
Enclosureglass-fibre reinforced, shock-proof thermoplastic, self-extinguishing UL 94 V-0
Tightening torqueenclosure mounting screw: 1.2 ... 1.3 Nm
cover screws: 0.5 ... 0.6 Nm
Switch typetype 1
Coding levelno coding
Switch insert1 x Ex 95
Degree of protectionIP 67 to IEC/EN 60529
Contact materialsilver
Switching systemslow action, positive break NC contacts
Switching elements1 NC/1 NO contact, type Zb
Connectionscrew connection terminals
Cable cross-sectionmax. 1.5 mm² (incl. conductor ferrules)
Cable entry1 x M20 x 1.5 (incl. 1 cable gland)
Clamping range7 … 13 mm
B10d (10 % load)2 million
TMmax. 20 years
Rated impulse withstand voltage Uimp4 kV
Rated operating isolation voltage Ui250 V
Conventional thermal current Ithe6 A
Rated operating current/voltage Ie/Ue6 A/250 VAC; 0.25 A/230 VDC
Utilisation categoryAC-15; DC-13
Max. fuse rating6 A gG/gN fuse
Ambient temperature–20 °C … +60 °C
Mechanical life> 1 million operations
Operation cyclesmax. 1800/h
Repeat accuracy of switching points± 0.1 mm
Contact openingmax. 2 x 3.5 mm
Impact energymax. 7 J
Ex marking II 2G Ex de IIC T5 Gb,
II 2D Ex tb IIIC T80°C Db IP67
IECEx Ex de IIC T5 Gb,
Ex tb IIIC T80°C Db
ApprovalsDMT 01 ATEX E 118
IECEx BVS 14.0018X
Weight100 g

Contact diagram

Switching diagram