The Siemens SENTRON 5SL6205-7RC is a 0.5 A, 2-pole miniature circuit breaker with a C tripping characteristic and a 7.5 kA breaking capacity per EN 60898.
Rated 0.5 A at both AC and at 30 °C ambient, this breaker is sized for very low-current branch circuits — think pilot lights, signal transformers, or control power feeds where a standard 1 A or higher breaker would not provide adequate overcurrent protection. For higher available fault currents (e.g., industrial mains), verify the upstream SCCR coordination — this breaker is not rated for industrial distribution panels without a current-limiting upstream device. Voltage ratings: 250 V AC single-phase, 415 V AC three-phase, with a maximum of 440 V AC in multi-phase operation. DC rating is 72 V maximum, so it can also serve DC control circuits within that limit.
Physical fit and installation
Installation depth of 70 mm leaves clearance for wiring behind the rail.