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Fritz Kübler GmbH

Monday - Thursday: 7.30 am to 5.00 pm
Friday: 7.30 am to 4.00 pm

Limes LI20 / B1 Limes LI20 / B1
Limes LI20 / B1 Limes LI20 / B1

Magnetic length measuring systems

Limes LI20 / B1

  • Extremely robust
  • High protection up to IP69k
  • Contactless
  • Wear-free
  • Simple mounting
  • Max. measuring length 70 m
  • Speed 25 m/s
  • Resolution max. 10 μm
  • Accuracy 0,08
TTL / RS422

Magnetic length measuring system, incremental – suitable for the harshest environments.

The Limes LI20 / B1 contactless incremental magnetic length measuring system – consisting of the LI20 sensor head and the B1 magnetic strip – allows a resolution of up to 10 μm with a maximum distance of 1 mm between sensor and strip.
For outdoor use, with a particularly sturdy aluminum housing and stainless steel cover, wide temperature range, and a UV-resistant cable. IP68 / IP69k protection, special encapsulation technology, and tested resistance to cyclic humidity and heat provide maximum reliability even in unprotected outdoor use.

Measuring system Magnetic length measuring systems
Measuring length 70 m
Speed 25 m/s
Dimension 10 mm x 25 mm x 40 mm
Working temperature -20 °C ... +80 °C
Protection level IP67
Resolution max. 10 μm
Accuracy 0,08
Interfaces Gegentakt
TTL / RS422
Power supply 4,8...26 V DC
4,8...30 V DC
  • Sturdy housing with IP67 protection
    • Optional: Special housing for high resistance against condensation (IP68 / IP69k, resistance to humidity per EN 60068-3-38 as well as humidity-heat per EN 60068-3-78).
  • Contactless measuring technology - thus no wear.
  • Cover strip to protect the magnetic strip
Simple installation
  • Simple adhesive mounting of the magnetic strip.
  • Generous installation tolerance.
  • Requires very little installation space.
  • Warning signals via status LED if the magnetic field is too weak.
Data sheet

LI20 / B1

PDF ∼ 485,5 KB | 02.2024
Installation manual

LI20, LI50, RLI20, RLI50

PDF ∼ 329,5 KB | 12.2016

Safety characteristics

Limes LI20 MTTFd

Multilingual: German, English
PDF ∼ 219,2 KB | 06.2019

Mechanical CAD / STEP


ZIP ∼ 351,1 KB | 10.2014


Instructions for sticking the magnetic tape

Multilingual: German, English
PDF ∼ 597,1 KB | 10.2016


Cables and connectors

„Do you have technical questions about the linear measurement technology or are you looking for individual solutions? We at Application Support are here for you.“

Rainer Grueninger
Application support
Rainer Grueninger
Application Engineer
+49 7720 3903 849

„We will be pleased to give you information about prices and delivery times. We are looking forward to your inquiry.“

Fritz Kübler GmbH
Fritz Kübler GmbH
Sales Germany
+49 7720 3903 871
+49 7720 21564