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4FR1-6 Magnetic field sensor

Key Benefits at a Glance

  • Ferromagnetic actuated reed switch
  • Detects ferrous metal through nonferrous metal
  • One piece housing
Note

All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

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Technical data of 4FR1-6

Switching functionNormally open (NO)
Output typeReed Contact
Rated operating distancesn12.7 mm
Installationnon-flush
Output type2-wire AC/DC
Mechanical life5 x 107 switching cycles
Switching frequencyf100 Hz
Repeat accuracy≤ 0.13 mm
No-load supply currentI0≤ 50 mA
Reed bounce timemax. 0.5 ms
Electrical ratingAC supply: 15 VA, 500 mA, 280 V RMS
DC supply: 15 W, 500 mA, 400 V DC
Ambient temperature-20 ... 83 °C (-4 ... 181.4 °F)
Connection typecable
Housing materialAluminum
Sensing faceAluminum
Degree of protectionIP68
Cable
MaterialPVC
Core cross section1.5 mm2
LengthL1.83 m
Dimensions
Height93 mm
Width81 mm
Depth31 mm
NoteFull sensing range available for low carbon steel 25.4 x 76.2 x 6.35mm