The breaking capacity is 4.5 kA per EN 60898 and 5 kA per IEC 60947-2, which covers most standard final subcircuits in residential and light commercial distribution boards.
The 1P+N design (one protected pole plus a switched neutral) fits single-phase final circuits where the neutral is switched but not protected against overcurrent.
Rated insulation voltage (Ui) is 253 V, and surge voltage resistance is 4 000 V. The overvoltage category is III, and the degree of pollution is 2 — both standard for fixed-installation distribution boards. The operating frequency is 50 Hz. The energy limitation class is 3, meaning the let-through energy is limited to reduce stress on downstream equipment during a fault. The minimum test voltage is 195 V.
