The 3VA2220-7MN32-0BA0: The interrupting rating is 330 kA at 240 V AC, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 52.5 kA at 690 V.
Motor protection release and internal trip unit
This breaker ships with an ETU350M electronic overcurrent release, designed specifically for motor protection duty. It includes phase failure detection, which is critical for preventing single-phasing damage on three-phase motor loads. There is no auxiliary contact version fitted (no 52a/52b signaling), and no communication function or ground fault monitoring module on this variant.
Thermal derating and operating envelope
At 55 °C it derates to 192 A, at 60 °C to 188 A, at 65 °C to 184 A, and at 70 °C to 180 A.
Dimensions are 181 mm height, 105 mm width, 86 mm depth. The 105 mm width is three-pole wide; if your existing panel was built around a different 3VA frame (e.g., the 3VA1 series), the footprint and terminal spacing differ, so verify the cutout and busbar alignment before swapping.
