The Siemens 5SY6120-7 is a robust miniature circuit breaker designed to provide reliable overcurrent protection in a variety of applications. Engineered for quick assembly and easy installation on a DIN rail, this single-pole device is suitable for both AC and DC circuits, with a rated voltage of 400 V AC and a rated current of 20 A. It features a C tripping characteristic, ensuring a precise response to overcurrent conditions, making it an ideal choice for industrial, commercial, and residential electrical systems.
With a compact width of just 18 mm, it conserves valuable space inside electrical enclosures, while its 90 mm height and 76 mm depth ensure it fits seamlessly into standard configurations. The circuit breaker is designed to withstand a range of environmental conditions, maintaining its performance in temperatures from -25 °C to +55 °C, making it a versatile solution for various climates.
The 5SY6120-7 is crafted with safety and durability in mind, boasting a mechanical life of 20,000 operating cycles and a high breaking capacity of 5 kA according to IEC 60947-2 standards. Its touch-protection feature ensures additional safety during operation and maintenance, while its halogen-free and silicon-free construction reflects a commitment to environmental considerations.
This miniature circuit breaker is also designed for flexibility, with the ability to connect to a wide range of conductor cross-sections, from 0.75 mm² to 35 mm² solid and stranded wires, and up to 25 mm² for finely stranded wires with core end processing. The tightening torque specifications ensure a secure and reliable connection, contributing to the overall stability and safety of the electrical system.
The Siemens 5SY6120-7 is a testament to Siemens' dedication to quality, reliability, and innovation in electrical protection technology. It is a practical choice for those seeking a dependable circuit protection solution that balances performance with ease of use.