Siemens SENTRON 5SL6501-7BB — 1 A MCB, C-curve, 1P+N
At 1 A, this is a low-current branch; it's sized for control transformers, signal supplies, or lighting circuits, not general-purpose socket outlets. If your panel's fault level exceeds that, you'll need to step up to a 10 kA rated MCB like the 5SL4363-7 family.
The 5SL6501-7BB occupies 2 modular width units (36 mm) on a DIN rail, with an installation depth of 70 mm and overall depth of 76 mm. IP20 protection applies with connected conductors — standard for dry indoor distribution boards. The 1P+N design switches both phase and neutral, with the neutral pole switching but not protecting — common in Italian-spec panels and in some residential markets where single-pole protection with switched neutral is required. The device is sealable and halogen-free, silicon-free, meeting material restrictions for sensitive environments.