The Siemens SENTRON 5SV4417-0 is a 2-pole residual current circuit breaker (RCCB) rated 80 A at 50 Hz, with a 100 mA trip threshold and instantaneous response (Type AC). The 100 mA rating suits circuits where a 30 mA trip would cause nuisance tripping from leakage in longer runs or equipment with inherent capacitance.
Supply feeds top or bottom — no orientation restriction.
Derate the 80 A rating above 40 °C: at 45 °C it carries 77.87 A, at 55 °C 70.26 A, at 65 °C 56.96 A, and at 70 °C 48.2 A. The silicon-free construction (no silicone outgassing) avoids contamination in sensitive environments like paint shops or electronics assembly.