Siemens 5SY4125-5

The Supplementary Protector is designed for use in AC applications with a rated current of 25 Amps and a voltage capacity of 400V. It features a compact design with a width of 18mm and a depth of 70mm, allowing for efficient installation in limited spaces. This device is compliant with UL1077 standards and is classified under the IEC Mini Circuit Breaker category.

With a trip characteristic of curve A, this model is effective for applications where the load current may require a faster response. It has an impressive rated short-circuit breaking capacity of up to 20 kA at 400V, ensuring robust protection against overloads and faults. The product also supports an ambient temperature range down to -40 °C, making it suitable for various environmental conditions.

Additional features include a pollution degree rating of 3, an IP20 degree of protection, and the capability for flush-mounted installation. The connectable conductor cross-section for both solid-core and multi-wired conductors is 0.75 mm². The product is listed under UL File E116386 in Vol. 1 Sec. 2, confirming its compliance with safety standards.