Breaking capacity is 6 kA per IEC 60947-2 and 5 kA per UL 1077 / CSA C22.2 No.235 — enough for most secondary distribution panels where the upstream transformer limits fault current below those levels.
The 80 A rating holds at 35 °C ambient. At 40 °C it derates to 75.2 A; at 45 °C to 72.72 A; at 50 °C to 70.08 A; at 55 °C to 67.36 A. The breaker also carries a humidity derating curve: max 95 % RH up to 55 °C, then 55 % to 70 °C, then 35 % to 75 °C. That matters in washdown or outdoor cabinets where condensation cycles are common.
Physical fit and installation
Dimensions: 18 mm wide, 90 mm high, 76 mm deep.
Compliance documentation
The 5SY6180-7CC is halogen-free and silicon-free — relevant for environments where outgassing can contaminate optics or sensitive electronics. It carries touch protection on the terminals. The product is designated per IEC 81346-2 and DIN EN 61346-2 as function code F (protective device). No RoHS/REACH certificate is in this evidence set, but the brand standard for SENTRON MCBs is full compliance with EU directives; request the declaration at quote time if your compliance audit requires it.