What this MCB delivers
The 1-pole design breaks a single phase at 400 V AC (single-phase 250 V AC), with a 6 kA breaking capacity per both EN 60898 and IEC 60947-2 — enough for most residential and light commercial distribution boards. At 40 °C ambient the continuous rating derates to 3.79 A, and at 55 °C it drops to 3.45 A — factor that into your panel thermal budget if the breaker sits near other heat sources.
Halogen-free and silicon-free materials matter for environments where outgassing during a fault could damage sensitive electronics or create corrosive byproducts.