Siemens 5SY7108-7 SENTRON MCB — 8 A, Curve C, 1-Pole
The 15 kA breaking capacity under EN 60898 covers the typical fault level at the panelboard; the 30 kA figure under IEC 60947-2 is the higher short-circuit withstand when the breaker is installed closer to the transformer or in a high-fault location.
Ambient range runs from -40 °C to 75 °C, with derated current above 35 °C — at 60 °C it carries 6.43 A. IP20 with connected conductors, touch protection built in. Sealable, halogen-free, silicon-free — suitable for clean-room or food-line panels where outgassing matters.