Siemens 3VA2163-7HN32-0DA0 — 63 A SENTRON MCCB with Undervoltage Release
Its interrupting capacity reaches 330 kA at 240 V AC, dropping to 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V — the 690 V figure is the one to watch when specifying for higher-voltage industrial feeds. The breaker carries an integrated undervoltage release (UVR), so it trips immediately if supply voltage drops below the release threshold — a common requirement for safety circuits and motor feeder disconnects.
The breaker measures 105 mm wide, 181 mm tall, and 86 mm deep — the 105 mm width is the critical dimension for multi-pole grouping in a distribution board, matching the standard SENTRON 3VA2 footprint.