Service & Contact

Service hours

Fritz Kübler GmbH

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


Encoders Incremental


  • with reference signal
  • Wear-free
  • Space and cost savings
  • Contactless
  • 3.600 ppr incremental
  • Max 35 mm hollow shaft, through
  • Max 1" hollow shaft, through
TTL / RS422

Bearingless encoder for shaft diameter up to 35 mm.

The RLI50 bearingless encoder with reference signal, consisting of magnetic ring and sensor head, with its installation depth of only 16 mm is ideally suited for confined installation possibilities. Its contactless measuring principle enables error-free operation even under adverse environmental conditions and a long service life. IP68 / IP69k protection, special encapsulation technology, and tested resistance to cyclic humidity and heat provide maximum reliability even in unprotected outdoor use. This bearingless encoder can be mounted on shafts up to max. 35 mm diameter.

Shaft type 6 mm hollow shaft, through
8 mm hollow shaft, through
10 mm hollow shaft, through
12 mm hollow shaft, through
15 mm hollow shaft, through
20 mm hollow shaft, through
25 mm hollow shaft, through
30 mm hollow shaft, through
35 mm hollow shaft, through
5/8 " hollow shaft, through
1 " hollow shaft, through
Working temperature -20 °C ... +80 °C
Protection level IP67
Connection types Radial cable
Max. rotational speed 12.000 min-1
Weight 200 g
Scanning magnetic
Resolution max. 3.600 ppr incremental
Supply voltage 4,8...26 V DC
4,8...30 V DC
Interfaces Push-pull
TTL / RS422


Resistant and insensitive
  • High shock and vibration resistance.
  • Sturdy housing with IP67 protection, optionally with special housing for high resistance against condensation (IP68 / IP69k, resistance against cyclic humidity per EN 60068-3-38 as well as humidity and heat per EN 60068-3-78).
  • Contactless and wear-free measuring system for long service life.
Fast commissioning
  • Function indication by LED.
  • Large mounting tolerance between magnetic ring and sensor head.
  • Requires very little installation space.
  • Easy adjustment by mounting via slotted holes.
Data sheet

RLI50 Incremental

PDF ∼ 219,7 KB | 09.2018
Installation manual

LI20, LI50, RLI20, RLI50

PDF ∼ 329,5 KB | 12.2016

Safety characteristics


Multilingual: German, English
PDF ∼ 194,2 KB | 06.2019

Declaration of conformity

LI20 / RI20 / RLI20 / RLI200 / LI50 / RI50 / RLI50 / RLI500

Multilingual: German, English, French
PDF ∼ 353,6 KB | 05.2017

mechanical CAD / STEP


ZIP ∼ 110,5 KB | 05.2017

electronic CAD / ePlan


ZIP ∼ 716,1 KB | 02.2020


Safety instructions for magnetic rings

Multilingual: German, English, French, Italian, Spanish
PDF ∼ 566,2 KB | 05.2017


Cables and connectors

„Do you have technical questions about Kübler encoders 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