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Red cylindrical rotary encoder with axial cable, IP50 rated

Autonics Corp

Autonics Corp E50S8-2000-N-24 Incremental Rotary Encoder NPN 2000P/R 12-24VDC IP50

SKU CH-2DGG-4SCAY MPN E50S8-2000-N-24

Incremental rotary encoder delivering 2000 pulses per revolution with NPN open-collector output, 12-24 VDC supply and IP50 protection

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Precise positioning with 2000 pulses per revolution
  • Reliable signal transmission via NPN open collector output
  • Consistent performance from 12-24VDC power supply
  • High-speed operation up to 300kHz response frequency
  • Durable IP50 protection for industrial environments

Purpose and audience

The Autonics E50S8-2000-N-24 is an incremental rotary encoder built for position and speed feedback in automation systems. It suits engineers and maintenance technicians who need reliable pulse counting on motor shafts or conveyor lines. The NPN open-collector output works with standard PLC inputs and counters. Buyers who need absolute position data or a different output type should look elsewhere.

Deciding specification

Resolution is fixed at 2000 pulses per revolution, which sets the smallest angular step the encoder can report. The control output uses an NPN open-collector stage powered from 12 to 24 VDC with a 5 percent ripple tolerance. Maximum response frequency reaches 300 kHz, and the mechanical limit is 5000 rpm. If the application demands higher resolution, a different voltage range or a push-pull output, this model will not fit.

Installation and common issues

The encoder mounts via an 8 mm shaft and connects through an axial cable, so alignment and cable routing are the main practical tasks. Starting torque is low at 70 gf·cm, reducing load on small shafts. The IP50 rating blocks dust but not water, so the unit must stay dry. Over-tightening the coupling or exceeding the 5000 rpm limit are the usual causes of premature failure.

How it compares

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Price $99.99
Typical for this category: the median of 5,006 items is $95.99.

Specifications

Product
Brand nameAutonics
Model nameE50S8-2000-N-24
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

What does the 2000 pulses per revolution mean when the encoder is installed?

Each full turn of the 8 mm shaft produces 2000 output pulses, giving a discrete position change every 1/2000 of a revolution.

How does the NPN open-collector output and 300 kHz maximum response frequency limit the signal?

The NPN output pulls the signal low and needs an external pull-up resistor; the 300 kHz ceiling caps the usable pulse rate, so cable length and noise margin must stay within that bandwidth.

What mounting and shaft details determine whether the encoder fits the machine?

The unit has an 8 mm diameter shaft, an axial cable exit, and an IP50-rated housing, so it needs a matching 8 mm coupling or bore and enough clearance for the cable run.

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