Ex IS M18


  • Ex zone 0 and 20
  • Stainless steel enclosure
  • Flush or non-flush mounting
  • Long life, no mechanical wear
  • Suitable for the food processing industry
  • Insensitive to soiling
  • With LED
  • Enclosure diameter M18 x 1
  • With pre-wired cable
  • N.B.: Please state required international approvals with your order!
  • Appropriate intrinsical safe switch amplifiers see chapter / Ex IS Safe switch amplifiers >

Technical data

StandardsEN 60079-0: 2012, EN 60079-11: 2012, EN 60079-26: 2007
EnclosureStainless steel A1, 1.4305
Front capKepital F25 POM
Back capLexan 923/A
Connectioncable PUR blue (Ø max. 4.5 mm)
Cable cross-section2 x 0.5 mm²
Degree of protectionIP 66, IP 67, IP 68 (EN 60079-0 + IEC/EN 60529)
Switching systemNamur to EN 60947-5-6
Rated switching distance snEx IS M18b: 5 mm;
Ex IS M18nb: 8 mm
Correction factorsSteel (Fe360) = 1; Stainless steel approx. 0.7; Brass approx. 0.5; Aluminium approx. 0.4; Copper approx. 0.4
Rated operating voltage range UB8.2 VDC
Current absorptionin presence of metal ≤ 1 mA;
in absence of metal ≥ 3 mA
Switching frequency1000 Hz
Repeatability≤ 3 %
Protection circuitInductive interference protection, protection against polarity reversal, short-circuit and overload proof
Ambient temperature–25 °C … +60 °C
Ex marking II 1G Ex ia IIB/IIC T6 Ga,
II 1D Ex ia IIIC T85°C Da IP66/IP67/IP68
Ex ia IIIC T85°C Da IP66/IP67/IP68
ApprovalsIMQ 14 ATEX 001
IECEx IMQ 14.0001X
Ordering details
Type   Material no.
Ex IS M18b 5ABBAB N 1GD 2m 1202210
Type   Material no.
Ex IS M18nb 8ABBAB N 1GD 2m 1202212