Siemens SENTRON 5SY4 MCB, 4P, 8A, Type A, 400V AC, 60V DC, 20 kA Breaking Capacity

The Siemens Miniature Circuit Breaker is engineered for superior performance, featuring a robust design that ensures reliable operation in a variety of environments. With a tripping characteristic class A and a mechanical service life of up to 10,000 cycles, this device is built to withstand the demands of modern electrical systems. Its four-pole configuration provides comprehensive protection, catering to both industrial and infrastructural applications. The circuit breaker operates effectively at an insulation voltage of 440 V, making it an ideal choice for applications requiring high voltage protection. The compact dimensions allow for versatile installation, while its impressive breaking capacity guarantees enhanced safety and reliability, complying with various international standards. Designed with user convenience in mind, it includes features such as touch protection and compatibility with supplementary devices, thereby ensuring seamless integration into existing systems.

Designed for reliable protection in diverse application scenarios
Compact size optimises space utilisation in electrical panels
User-friendly installation with a versatile mounting position
Endures harsh environmental conditions with operational capability from -40 °C to 70 °C
Enhances safety with touch protection and combinable terminals
Compatible with a wide range of conductor cross-sections allowing for flexible connectivity
Durable construction ensures longevity and decreased replacement frequency