Siemens SENTRON 3VA1020-3ED32-0AA0 — 20 A MCCB with TM210 release
Breaking capacity across common system voltages
Breaking capacity is voltage-dependent: 75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V.
At 60 °C and 65 °C it derates to 19 A, and at 70 °C it remains at 19 A. This means the 20 A rating is maintained across typical panel ambient conditions — no derating needed unless the enclosure runs above 55 °C.
The 3-pole width (76.2 mm) is standard for this frame size — it fits the same DIN-rail or screw-mount footprint as other 3VA 3-pole units. No neutral conductor upgrade or motor drive option is fitted on this variant.