Siemens SENTRON 5SL4202-7RC — 2-pole C-curve MCB at 2 A
The Siemens SENTRON 5SL4202-7RC is a 2-pole miniature circuit breaker rated 2 A with a C tripping characteristic and a 10 kA breaking capacity per EN 60898 at 415 V AC. It occupies a single modular width unit (18 mm) on DIN rail, making it a compact choice for residential and infrastructure branch circuits where the load is modest but the fault current potential is industrial-grade. At 2 A it is typically used for control transformers, lighting contactor coils, or PLC power supplies — not main feeders.
At 18 mm wide (1 MW), 76 mm deep, and 90 mm tall, the 5SL4202-7RC snaps onto standard 35 mm DIN rail and needs 70 mm of enclosure depth behind the panel. Mounting position is unrestricted, and the IP20 rating (with conductors connected) is typical for enclosed distribution boards.
Rated 415 V AC (multi-phase) with a maximum of 440 V AC, and 250 V AC single-phase. DC rated to 72 V maximum — usable for DC control circuits within that limit.