Procurement teams shortlist E40H8-20-3-N-24 with Autonics Proximity Sensor, Baumer Encoder and Rotary Encoders E50S8 1024 6 L, aligning budget approvals, warranty terms, and multisite availability for smoother rollout across plants.
Autonics E40H8-20-3-N-24 Rotary Encoder
The Autonics E40H8-20-3-N-24 Rotary Encoder offers Γ8mm shaft inner diameter, 5000rpm Max. allowable revolution, NPN open collector, Control output 12-24VDC, Power supply, 20P/R, resolution Radial cable type connection type. Manufactured by Autonics under the Autonics Rotary Encoder category, this model belongs to the Autonics E40H Series.
| Brand | Autonics |
| Product Type | Rotary Encoder |
| Model Number | E40H8-20-3-N-24 |
Autonics E40H8-20-3-N-24 Rotary Encoder β Technical Specifications
| Specification | Value |
|---|---|
| Shaft inner diameter | Γ8mm |
| Max. response frequency | 300kHz |
| Max. allowable revolution | 5000rpm |
| Starting torque | Max. 50gf.cm(max. 0.0049N.m) |
| Resolution | 20P/R |
| Output phase | A, B, Z |
| Control output | NPN open collector |
| Power supply | 12-24VDC |
| Connection type | Radial cable type |
| Protection structure | IP50 |
| Environment_Ambient temperature | -10 to 70β, storage: -25 to 85β |
| Environment_Ambient humidity | 35 to 85% RH, storage: 35 to 90% RH |
| Accessories | Bracket |
| Weight | Approx. 120g |
The Autonics E40H8-20-3-N-24 features a shaft inner diameter of Γ8mm and a resolution of 20 pulses per revolution (P/R), making it suitable for basic to moderately precise motion detection tasks. It supports a maximum revolution speed of 5000rpm and provides incremental signal outputs through A, B, Z channels. With a NPN open collector output and a stable 12β24VDC power input (Β±5%), this model ensures compatibility with most PLC and industrial controller input cards. The encoder's radial cable type connection allows easy integration into panels, while its IP50 protection rating shields the internal components from dust, making it suitable for standard factory environments. It operates across a wide temperature range from -10Β°C to 70Β°C and supports humidity levels up to 85% RH, allowing consistent performance in Indian manufacturing conditions. Weighing approximately 120g and bundled with a mounting bracket, the encoder is compact, reliable, and installation-ready.
Built with Autonicsβ signature precision and durability, the E40H8-20-3-N-24 is trusted by system integrators, OEMs, and factory engineers for stable signal output and ease of deployment. The 300kHz max response frequency ensures fast signal processing, reducing lag in applications where real-time feedback is critical. Its low starting torque of just 50gf.cm reduces the load on connected machinery, helping to extend equipment life and reduce maintenance needs. Whether deployed in conveyor systems, automated packaging lines, or sensor-based alignment units, this encoder is designed to perform consistently and with minimal configuration effort.
In actual applications, the Autonics 40 mm Incremental Rotary Encoder is commonly used to detect speed and direction in slow-to-medium rotating equipment such as gear-driven shafts or indexing tables. For maintenance engineers, it provides dependable feedback without overcomplicating the wiring or system logic. For students and junior engineers, it offers a clear and practical understanding of pulse output encoders used in automation. Its low resolution of 20P/R is ideal for simple counting, speed detection, or coarse positioning applications where ultra-fine resolution isnβt required. With rugged construction and straightforward electrical interfacing, the E40H8-20-3-N-24 remains a popular choice for educational, experimental, and budget-sensitive industrial use cases. For further specifications, refer to the official Autonics product page.
