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Encoder | INDUCTIVE Rotary | IND-ROT-055-A21-WB

INDUCTIVE Rotary Encoder: Precision in Compact Form

image of Encoder IND-ROT-055-A21

An absolute encoder of highest quality in the smallest possible size.

The INDUCTIVE Rotary Encoder by FLUX redefines reliability in tight spaces with its open PCB design. Unyielding and compact, this encoder delivers the highest quality in an ultra-lightweight, flat form. Utilizing FLUX's patent-pending inductive technology, it boasts exceptional immunity to magnetic and electromagnetic interference, making it the perfect fit for the smallest spaces. Discover unmatched reliability and precision where size meets exceptional performance.


  • Plug-n-play
  • No field calibration required
  • Wide mounting tolerances
  • High accuracy


  • Low installation cost
  • Low integration effort
  • Easy installation

System Data

TypeAxial, frameless, true absolute INDUCTIVE encoder INDUCTIVE-ROTARY-FLUX GmbH (patentpending)
Standard Resolution21 bits, 524’288 2’097’152 ppr(beforex4) cpr(afterx4)
ENOB in entire mounting tolerance range19 bits
High AccuracyEnhanced accuracy can be achieved depending on the mounting setup
Standard Accuracy±90”, ±0.025°, ±450µrad
Repeatability1 resolution count
Position update rate and signal latencyReal-time
Power-up Timemax. 0.8 sec

Electrical Data

Supply voltageOption5V:min.4.35Vdc.max.6Vdc
Reverse polarity protectionyes
Current Consumptionmax.100mA@ 5Vdc, max. 30mA@24Vdc

Mechanical Data

Stator Base MaterialFR4 (CTE~18ppm/°C)
Stator Weight7.00 g
Rotor Base MaterialStainless steel (CTE~10ppm/°C)
Rotor Weight7.00 g
VibrationEN 60068-2-6, 20 g, 55 .. 2000 Hz
ShockEN 60068-2-27, 200 g, 6 ms

Mounting Tolerances

Nominal Axial (air-gap)0.50 mm
Axial Tolerance0.30 mm (0.20 mm to 0.80 mm)
Radial Tolerances0.20 mm

Environmental Data

Temperature Range - Standard Operating-20°C .. +85°C
Temperature Range - Standard Storage-20°C .. +85°C
Temperature Range - Extended Operating-40°C .. +105°C
Temperature Range - Extended Storage-55°C .. +125°C
Ingress ProtectionIP00
EMC Immunitycomplies with EN IEC 61000-6-2
EMC Emissioncomplies with EN IEC 61000-6-4

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