Energy limiting class 3 means it restricts let-through energy well, aiding downstream coordination. The 1P+N design switches both line and neutral, which is mandatory in some national wiring rules (e.g., UK, Australia) for final subcircuits. The neutral pole is switched but not protected — overcurrent detection is on the line pole only. Rated single-phase maximum is 250 V, so it also fits 240 V nominal supplies.
Sealable with a wire seal or adhesive tag for tamper evidence — useful for metered or landlord subcircuits. Touch protection is integral (finger-safe terminals per the IP20 rating with conductors connected). Mechanical endurance is 10 000 switching cycles typical, which is adequate for panel isolation duty but not for frequent switching as a load controller.