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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

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
Connection types up to 1 m cable axial
Working temperature -20 °C ... +80 °C
Protection level IP69k
Resolution max. 10 µm
Accuracy 0,08
Interfaces Push-pull
TTL / RS422
Supply voltage 4,8...26 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 ∼ 207,3 KB | 09.2018
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



ZIP ∼ 351,1 KB | 10.2014

Declaration of conformity

LI20 / LI50

Multilingual: German, English, French
PDF ∼ 360,1 KB | 04.2016


Instructions for sticking the magnetic tape

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? I would be pleased to help you.“

Rainer Grueninger
Application support
Rainer Grueninger
Application Engineering
+49 7720 3903 764
+49 7720 21564

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

Fritz Kübler GmbH