Its 70 mm depth, 76.2 mm width, and 130 mm height fit standard Siemens 3VA panel footprints — a direct drop-in for existing SENTRON 3VA busbar and mounting arrangements.
This unit delivers 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V.
Integrated undervoltage release and auxiliary switching
All share the same compact housing, so no external add-on modules are needed.
Rated 20 A from 40 °C through 55 °C ambient — no derating required in most panel environments. At 60 °C and 65 °C it holds 19 A, and at 70 °C still delivers 19 A. That thermal stability simplifies panel design: you don't need to oversize the frame for a warm enclosure. Maximum power loss is 14.5 W, which is moderate for a 20 A MCCB and manageable in a standard IP54 cabinet.