Its adjustable thermal-magnetic trip unit covers a range from 240 A to 1 920 A, giving the specifying engineer flexibility to match downstream cable and load requirements without swapping the breaker frame. 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 4.5 kA at 690 V. That simplifies panel design in hot environments or enclosures with limited airflow.
Footprint & Panel Fit
Dimensions are 86 mm deep, 140 mm wide, 181 mm high — a compact 4-pole footprint that fits standard Siemens 3VA mounting bases and panel cutouts. No special adapter plate needed for retrofit into existing 3VA2 switchboard layouts. The 140 mm width is the same as the 3-pole variant; the extra pole adds depth only.