Electronic position switches

Precise and safe monitoring of position ranges

Heavy industry places tough demands on the reliability and lifetime of the installed components. Experience shows that mechanical cam limit switches, which are still used in many industrial plants for position monitoring do not meet all requirements in regards to safety, accuracy and ease of use.

For example, these mechanical devices often exhibit low switching accuracy and user-unfriendly handling during the adjustment of switching points. This inefficiency disrupts the smooth industrial process, causing stoppages and longer downtimes due to the extra time and effort required to achieve precise positioning.

The electronic position switches (limit switches) ERC 40 make it possible to flexibly monitor position ranges. For example, the position switches are deployed in hoisting gear, in crane technology and in mining operations as well as in screw downs and side guides in steel works. The electronic position switches are often used as a simple 1:1 replacement solution in legacy systems where mechanical cam switches are installed. Moreover, the electronic limit switches can also be integrated in new systems without any difficulty. The position switches ensure high accuracy and facilitate fast and easy system calibration by means of presets, by setting switching points as well as uncomplicated data storage.

Johannes Hübner

Electronic position switch ERC 40

Kopierwerk ERC 40zoom

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Short info

  • Monitor position ranges
  • Modular, easy to set
  • Calibration via preset; Intuitive configuration
  • Replacement solution for mechanical rotary cam limit switches

Monitoring of position ranges

  • Ø 14 mm solid shaft (flange or foot mounting)
  • Up to 15 position switches, switching capacity 230 V AC/DC, 0.5 A
  • Resolution 13 bit singleturn / 15 bit multiturn
  • Options: Current output (4-20 mA) for real-time position data
  • Online-Request Contact


  • Real-time position data (4 - 20 mA)

Our partner, Johannes Hübner Fabrik elektrischer Maschinen GmbH, as a specialist for customised encoder solutions, can serve almost all requirements of heavy industry. The electronic position switches are particularly reliable, convenient, felxible and safe.

Attribute Value
Supply voltage 15-27 VDC
Resolution Multiturn 15 bit (32768 rotations)
Singleturn 13 bit (8192 steps per rotation or 0.044° = 360°/8192)
Switching outputs Position switches; further switching functions on request (see U-ONE-Compact)
Signal outputs/Interfaces None (switching relay only)
Current output 4-20 mA
Further interfaces (see U-ONE-Compact)
Maximum rotation Solid shaft: up to 2800 rpm
Electrical connection Base module: Terminal box (copper cable) + USB interface
Switching module: Terminal box (copper cable)
Construction type / Ø shafts Solid shaft (B5, B35) / Ø 14 mm with feather key
Device temperature range -25 °C to +70 °C
Degree of protection IP66
Weight Approx. 3.6 kg + 0.8 kg/module
Device options Modularly extendable (up to 15 relay outputs or current output for real-time position data)
Further additional functions: UOC 40
SIL 2 (DIN EN 61508); PL d (DIN EN ISO 13849); Category 3 (DIN EN ISO 13849) can be implemented with USC 42
Mechanical options Additional foot (solid shaft construction type), MI: Saliferous environment

Flohr Industrietechnik GmbH - Im Unteren Tal 1 - D-79761 Waldshut-Tiengen - Phone: +49 (0)7751 / 8731-0 - info@flohr-industrietechnik.de

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