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. It occupies 2 modular width units (36 mm) on a DIN rail, making it a standard panel component for protecting lighting, control transformers, and small resistive loads in residential or infrastructure panels.
Ratings and what they mean for the panel
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. The C curve (magnetic trip between 5× and 10× In) means it tolerates moderate inrush without nuisance tripping, suitable for small inductive loads like contactor coils or relay banks. Breaking capacity of 7.5 kA per EN 60898 covers most residential and light commercial fault levels. 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
Dimensions: 36 mm wide (2 MW), 76 mm deep, 90 mm tall. Mounts on standard DIN rail in any position. Installation depth of 70 mm leaves clearance for wiring behind the rail.