Interrupting capacity is the headline here: 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V. That simplifies panel design: no need to upsize the frame for a 60 °C enclosure interior.
That storage range covers unheated warehouses in cold climates — the breaker can sit on a shelf at -40 °C without damage, provided it's warmed above -25 °C before energizing.
Depth of 86 mm means it clears a 120 mm deep enclosure without crowding the gland plate. The basic switch variant is 3VA20105HL360AA0, which confirms the internal mechanism. The auxiliary switch design carries two HQ auxiliary switches — these are high-quantity (HQ) form-C contacts for status signaling to a PLC or SCADA.