Siemens 5SY4101-8

The Supplementary Protector is a compact 1-pole circuit breaker rated for 1 A and operates at a maximum voltage of 400 V. With dimensions of 18 mm in width and 70 mm in depth, it is suitable for various electrical installations. Adhering to UL1077 standards, it is classified under the IEC Mini Circuit Breaker category.

This device features a trip characteristic curve D, which provides specific performance under fault conditions, ensuring reliable protection. The rated short-circuit breaking capacity is 10 kA at 230 V and 400 V, exceeding typical requirements for protective components.

With an IP20 degree of protection, it is suitable for indoor applications where exposure to dust and moisture is limited. The unit operates effectively in ambient temperatures ranging from -40 °C, enhancing its versatility across various environments. It supports a connectable conductor cross section of 0.75 mm² for both solid-core and multi-wired configurations, making it adaptable for diverse wiring setups. The UL File E116386 indicates compliance with stringent safety standards.