Ex position switch

ExM 14 WKU - 2m

Article no.: 1189095Old article no.: 14704303

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Product features

Ex
  • Ex zone 1 and 21

  • Thermoplastic enclosure with cable

  • Mounting details to EN 50047

  • Suitable for in-line mounting

  • Actuator: Ball plunger with collar WKU

  • Vertical actuation or actuation from side possible

  • Actuator with captive stainless steel ball

  • Watertight collar for protection against penetration of dirt

  • Attention: Please state required international approvals with your order!

Technical data

Applied standards
EN 60947-5-1, EN IEC 60079-0, EN 60079-1, EN 60079-31
Enclosure
thermoplastic, glass-fibre reinforced, shockproof, self-extinguishing UL 94 V-0
Degree of protection
IP65 (IEC/EN 60529)
Contact material
silver
Switching system
snap action
Switching elements
1 change-over contact with single break, type C
Connection
cable H05VV-F
Cable cross-section
3 x 0.75 mm² (incl. conductor ferrules)
Cable length
2 m
Rated impulse withstand voltage Uimp
4 kV
Rated insulation voltage Ui
250 V
Conventional thermal current Ithe
5 A
Rated operating current/voltage Ie/Ue
5 A/250 VAC; 0.16 A/230 VDC
Utilisation category
AC-15; DC-13
Short-circuit protection
5 A gG/gN fuse
Safety class
II
Ambient temperature
–20 °C … +60 °C
Mechanical life
> 1 million operations
Actuating speed
max. 0.5 m/s with a vertical actuating angle of 20°
Operation cycles
max. 1800/h
Repeat accuracy of switching points
± 0.1 mm
Contact opening
max. 2 x 4 mm
Ex marking
L II 2G Ex d IIC T6 Gb,
L II 2D Ex tb IIIC T80 °C Db IP65
Approvals
PTB 03 ATEX 1069 X

Dimensional drawing

Further drawings

Contact diagram
Switching diagram

Downloads

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Choose the type of download
Mounting and wiring instructions – Ex 14 / ExM 14

German, English, French, Italian, Portuguese

PDF5 MB 13.11.2025

Variants / Options

The following variants / options are available on request:

  • Cable entry on side

  • Gold-plated contacts

  • Contact overlapping (only slow action)

  • Latching element (On-/Off principle)

  • Cold-resistant version down to -40 °C

  • Special version only for dust Ex zone 22

to your contact persons

Ex position switch

ExM 14 WKU - 2m

Article no.: 1189095Old article no.: 14704303

contact us