It breaks fault currents up to 4.5 kA per EN 60898 and 5 kA per IEC 60947-2 — the EN figure governs residential and light commercial distribution boards; the IEC figure applies when the breaker is used in industrial panel applications where the standard calls for 60947-2 coordination. Installation depth is 70 mm. Mounting position is unrestricted.
C-curve and real-world load
Power loss is 2.2 W per pole in hot operating state at rated current. In a multi-breaker panel, that heat adds up — derating calculations should account for it if the enclosure is sealed and ambient runs above 40 °C. The breaker itself is rated for -40 to 75 °C ambient, so the limit is the panel's internal temperature rise, not the component.
IP20 with connected conductors means the terminals are finger-safe only when wired; the busbar entry points are not protected against dust ingress, so the breaker belongs inside an enclosure, not exposed on the plant floor. Energy limitation class 3 means the let-through energy on a fault is limited enough to protect downstream equipment within the breaker's rated breaking capacity.