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Small red cylindrical encoder with radial cable and Ø6mm shaft

Autonics Corp

Autonics Corp E40S6-256-3-N-24 rotary encoder incremental NPN 256P/R 300kHz 5000rpm 12-24VDC IP50

SKU CH-GQH9-T9GFF MPN E40S6-256-3-N-24

Incremental rotary encoder with 256 P/R resolution, NPN open-collector output, 300 kHz response and 5000 rpm maximum speed

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • 256 pulses per revolution for precise positioning
  • NPN open collector output simplifies controller wiring
  • 300 kHz response frequency supports high-speed motion
  • 12–24 VDC supply range fits common industrial power
  • IP50 rating protects against dust ingress

Rotary encoder for position feedback

The Autonics E40S6-256-3-N-24 is an incremental rotary encoder with NPN open-collector output. It delivers 256 pulses per revolution and operates on a 12-24VDC supply. The Ø6 mm shaft supports speeds up to 5000 rpm with a starting torque of 40 gf·cm. Protection is rated IP50.

Suits PLC inputs and simple motion control

Engineers integrating position feedback into PLCs, conveyor drives or packaging machines will find the 300 kHz response frequency and radial cable convenient. The unit is not for applications that require absolute position data, higher resolution than 256 P/R, or environmental sealing beyond IP50.

256 pulses per revolution decides fit

The single specification that determines compatibility is the 256 P/R resolution. If the control system expects a different pulse count per turn, this encoder will not match the required scaling.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $74.99
Cheaper than about 65% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameAutonics
Model nameE40S6-256-3-N-24
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

What shaft diameter does the 6 mm encoder shaft fit?

The encoder has a Ø6 mm shaft outer diameter, so it fits a 6 mm bore or coupling.

How do I wire the radial cable without crossing the A and B channels?

Follow the cable colour code for NPN open-collector outputs: typically brown for VCC, blue for GND, black for A-phase, white for B-phase, and orange for Z-phase.

How often should I check the starting torque spec of 40 gf·cm?

Verify the starting torque remains below 40 gf·cm (0.00392 N·m) during routine maintenance; if it rises, inspect bearings and shaft alignment.

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