The Siemens Betagard 5SL7310-8RC is a 3-pole miniature circuit breaker with a D tripping characteristic, rated 10 A at 30 °C and 415 V AC. Thermal derating is published: 9.4 A at 40 °C, 8.1 A at 60 °C — factor that into your panel fill if the enclosure runs warm.
At 3 modular width units (18 mm per unit, 54 mm total width) and 76 mm depth, it leaves room for adjacent breakers and terminal blocks in the same enclosure. Mount in any position — vertical, horizontal, flat — without derating the interrupting capacity. The IP20 rating (with conductors connected) is standard for enclosed panel gear; keep the cabinet door closed during operation. Touch-protected terminals reduce the chance of accidental contact during commissioning.
Voltage and environmental limits
Rated 415 V AC for multi-phase operation, with a maximum of 440 V AC for both multi-phase and single-phase circuits. Operates across -40 °C to 75 °C ambient, which covers unheated electrical rooms and outdoor-rated enclosures in most climates.