It carries a C tripping characteristic, so it's sized for loads with moderate inrush, like small motors, lighting banks, or general socket outlets. Rated 13 A at 30 °C ambient, it derates to 12.31 A at 40 °C and 11.2 A at 55 °C — the 40 °C figure is the one to check if the breaker sits in a warm enclosure or next to other heat sources. The part is rated for 400 V AC phase-to-phase, with a maximum of 440 V in multi-phase operation. It occupies 4 modular width units (72 mm total) on a DIN rail, with a depth of 76 mm and an installation depth of 70 mm — fits standard 18 mm pitch distribution boards.
That's typical for a domestic or light commercial supply transformer. The 4-pole 3P+N format with neutral switching is useful where you need to isolate the neutral for maintenance or where local regulations require it on the incoming subcircuit. Temperature derating is worth noting: at 40 °C the breaker carries 12.31 A, not the full 13 A. If the panel runs warm — say, above 40 °C — size the load to the derated figure or step up one frame size. It's sealable, halogen-free, and silicon-free — relevant if the panel spec calls for low-smoke, zero-halogen materials.