Ex RF IS M12 nb-ST


  • Ex zone 1 and 21 in combination with universal transmitter Ex RF 96 ST
  • Metal enclosure
  • M12 thread
  • Non-flush mounting
  • With M12 coupling, 4-pole
  • 2 mounting nuts are included in delivery

Technical data

StandardsEN 60947-5-2
Enclosurebrass, nickeled
Front capPVC, black
Back capPVC, black
ConnectionCoupling M12 x 1, 4-pole
Cable length0.5 m, 1 m or 2 m
Degree of protectionIP 67 to IEC/EN 60529
Ambient temperature–20 °C … +60 °C
Rated operating isolation voltage Ui75 VDC
Rated operating current Ie0.2 mA
Rated operating voltage Ue3 … 5 VDC
Switching distancessn 4 mm; sa 0 … 3.24 mm;
sr 3.6 mm … 4.4 mm
Hysteresisapprox. 10 %
Repeatability< 5 %
Type of installationnon-flush
Switching frequencysee Ex RF 96 ST
Correction factorsSteel (Fe360) = 1; Stainless steel approx. 0.7; Brass approx. 0.5; Aluminium approx. 0.4; Copper approx. 0.4
Actuatorsteel plate 12 x 12 x 1 mm, FE 360
NoteThe sensor may only be used in combination with an Ex RF 96 ST and is included within the ATEX and IECEx approvals for the wireless Ex universal transmitter.
Ordering details
Type   Material no.
Ex RF IS M12 nb-ST 2 m stock type Standard versions, in stock or available at short notice 1355979
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.