It is designed as a short-time delayed device, meaning it rides through brief inrush or leakage spikes that would nuisance-trip a standard RCCB, making it a fit for circuits with capacitive loads or long cable runs where transient leakage is expected. Rated at 40 A across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling — and carries a 10 kA short-circuit current rating per IEC 61008-1. The 100 mA trip level suits it for protection against fire risk from ground faults rather than direct personnel shock protection (which typically calls for 30 mA or lower).
Depth is 70 mm, height 90 mm. Silicon-free construction, which matters for environments where silicone outgassing can contaminate contacts or optics.