The SICK SRS50-HZA0-S21 is a high-precision incremental rotary encoder designed for demanding industrial automation applications. Engineered with a 50 mm diameter metal housing, it delivers reliable position feedback and speed measurement in harsh environments. Featuring a robust hollow shaft design (Ø10 mm) and IP65 protection, the encoder resists dust, moisture, and mechanical stress, making it ideal for use in machinery, robotics, and conveyor systems. With a resolution of 2048 pulses per revolution (PPR) and HTL/TTL differential outputs, it ensures accurate signal transmission even in electrically noisy environments. The encoder operates on a 10–30 VDC power supply and supports a maximum shaft speed of 6000 RPM, balancing performance with energy efficiency.
Built for precision and durability, the SRS50-HZA0-S21 incorporates a magnetic sensing principle for non-contact operation, minimizing wear and extending service life. Its electrical interface includes four-channel outputs (A, B, Z, /A, /B, /Z) with a signal period deviation ≤5%, ensuring stable data transfer. The encoder features a wide operating temperature range of -20°C to +85°C and withstands vibrations up to 10 g (10–2000 Hz) and shocks up to 100 g (11 ms), adhering to IEC 60068-2 standards. The 2-meter shielded cable with M12 connector enables easy installation, while reverse polarity and short-circuit protection enhance operational safety. Compliant with CE and RoHS directives, it meets global industrial standards for electromagnetic compatibility (EMC) and environmental safety.
The SRS50-HZA0-S21 excels in applications requiring precise motion control, such as CNC machines, packaging equipment, and automated production lines. Its hollow shaft design simplifies alignment with drive systems, reducing installation time and mechanical stress. The encoder’s high Anti-interference ability (immunity to electromagnetic interference) and long-term reliability make it a trusted choice for continuous operation in harsh industrial settings. With SICK’s advanced sensing technology, it provides real-time feedback for position, velocity, and direction, enabling seamless integration with PLCs, drives, and control systems. Whether optimizing production efficiency or enhancing system accuracy, this encoder combines rugged construction with high-performance specifications to meet the most demanding automation needs.
| Attribute | Details |
| Product Type | Servo - feedback encoder |
| Brand | SICK |
| Model | SRS50 - HZA0 - S21 |
| Origin | Germany |
| Application Areas | Energy, printing and packaging, automotive, etc. |
| Electrical Interface | HIPERFACE |
| Working Voltage Range | 7 V DC - 12 V DC |
| Suggested Supply Voltage | 8 V DC |
| No - load Working Current | 80 mA |
| Sinusoidal/Cosine Period Output Frequency | 0 kHz - 200 kHz |
| Measurement Resolution | 32,768 steps per revolution, with a maximum of 4,096 revolutions, giving a total resolution of 134,217,728 steps |
| Available Storage Space | 128 Byte (E2PROM 512) |
| Packaging | Dust - proof aluminum - foil paper packaging, bubble - bag rain - proof and fall - resistant inner packaging, carton outer packaging |
| Single Gross Weight | 0.800 kg |
| Mechanical Interface | Clamping flange or servo flange, blind - hole hollow shaft or through - hole hollow shaft |
| Programmability | 16 - bit programmable for output voltage, zero - pulse position, zero - pulse width, and pulse count |
| Safety Certification | Conforms to SIL2/PLd safety certification |
| Features | Non - contact type, programmable position value and electronic label, integral disc scanning technology, etc. |
Packaging & Shipping
Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are perfectly.
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