Rated 400 V AC at 50/60 Hz, it fits distribution boards where a 2-module-width (36 mm) device is specified.
Under UL 1077 and CSA C22.2 No. 235, the same breaker is rated 5 kA, so verify which standard governs your panel's SCCR calculation. The C-curve (5–10× In) avoids nuisance tripping on capacitor-switching or motor-starting transients while still protecting downstream wiring. Power loss is 1.2 W per pole in hot operating state — negligible in a single device, but relevant when packing 20+ breakers in a sealed enclosure for thermal derating calculations.
The sealable design allows lockout/tagout for isolation — a practical detail for maintenance procedures.
The part carries no UL/CSA listing on the evidence, but the UL 1077 / CSA C22.2 No. 235 rating (5 kA) indicates it is recognized for North American supplementary protection applications.