The Siemens SENTRON 5SN6580-7CN86 is a 1P+N miniature circuit breaker (MCB) with a C80 tripping characteristic, rated 80 A at 30 °C and a 6 kA breaking capacity per EN 60898. It integrates an undervoltage and overvoltage release (UVR/OVR) on a 230 V AC supply, making it a combined overcurrent and voltage-protection device for a single-phase final subcircuit.
The 1P+N configuration switches the line and switches the neutral — the neutral is not a protected pole but is disconnected when the breaker trips, which is required in some regional wiring rules (e.g., UK, Australia) for final circuits. The C80 characteristic (magnetic trip at 5–10× In) means it tolerates the starting current of a 3–4 kW motor or a bank of LED drivers without dropping out.
The sealable design allows the panel builder to lock the toggle position with a padlock or seal wire — useful for utility or facility lockout/tagout.