E20S Series
20 mm Incremental Rotary Encoders (Shaft Type)
The E20S series shaft type incremental rotary encoders feature ultra-compact Ø20 mm size housings and lightweight (35 g) design. The small size and light weight allows easy installation in tight or limited spaces. The low moment of inertia of the shaft minimizes the effect on the rotation of applied equipment.
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Description
The Autonics E20S Series are Ø20 mm ultra-compact incremental rotary encoders designed for precise speed and position feedback in space-limited automation systems. Featuring a solid shaft structure, the E20S series supports multiple resolutions, A/B/Z phase outputs, and NPN or PNP open collector output types, enabling reliable direction and speed detection.
With a wide operating voltage range (5–24 VDC) and lightweight construction, the E20S integrates easily into compact motors, conveyors, small indexing mechanisms, packaging equipment, and OEM machinery. Axial or radial cable options provide flexible wiring layouts, making the E20S a practical solution for compact motion control applications requiring stable and repeatable feedback.
| Housing Size | Shaft Diameter | Resolution (PPR) | Output Type | Power Supply | Connection Type | Protection Rating | Model |
|---|---|---|---|---|---|---|---|
| Ø20 mm | Ø4 mm | 100 | NPN open collector | 5–24 VDC | Axial cable | IP50 | E20S4-100-2-N-24 |
| Ø20 mm | Ø4 mm | 200 | PNP open collector | 5–24 VDC | Axial cable | IP50 | E20S4-200-2-P-24 |
| Ø20 mm | Ø5 mm | 360 | NPN open collector | 5–24 VDC | Radial cable | IP50 | E20S5-360-2-N-24 |
| Ø20 mm | Ø5 mm | 500 | PNP open collector | 5–24 VDC | Radial cable | IP50 | E20S5-500-2-P-24 |
| Ø20 mm | Ø6 mm | 1024 | NPN open collector | 5–24 VDC | Axial cable | IP50 | E20S6-1024-2-N-24 |
