Siemens SENTRON 5SY5 Miniature Circuit Breaker, 2-Pole, 4 A, Type B, 400 V ac AC, 440 V DC, 10 kA Breaking Capacity

The Siemens Miniature Circuit Breaker is designed for reliable protection in both AC and DC applications. This robust device not only ensures superior performance with a tripping characteristic class B but also boasts a mechanical service life of up to 10,000 operating cycles. Compliant with various international standards, this model combines a compact design with high breaking capacity, making it ideal for infrastructure, industrial, and mobility applications. Featuring dual poles, it simplifies installation while ensuring safety and longevity. With its halogen-free, sealable, and silicon-free construction, this breaker is built to withstand harsh conditions, ensuring protection and performance you can trust.

Designed for both AC and DC voltage applications