The Siemens SENTRON 5SV3347-6KK01 is a 4-pole residual current circuit breaker (RCCB), type A, short-time delayed, rated 80 A with a 30 mA trip threshold and 400 V AC supply voltage. The short-time delay (type S / selective characteristic) means it coordinates with downstream RCCBs — it holds during a brief earth fault on a sub-circuit, letting the downstream device clear first, so only the faulted branch is lost. That selectivity matters in distribution boards feeding multiple sub-panels or critical loads where a nuisance trip on the incomer takes everything dark.
Mounting position is unrestricted. Silicon-free construction suits environments where silicone outgassing can contaminate contacts or optics.
Rated short-circuit current withstand is 10 kA, and the conditional short-circuit rating per IEC 61008-1 is 0.8 kA. The maximum permissible series fuse short-circuit current is 100 A — relevant when the RCCB is backed by a larger upstream fuse.