SENTRON 3VA2163-6KP42-0AA0 — 63 A MCCB with ETU850 Release
The Siemens SENTRON 3VA2163-6KP42-0AA0 is a 4-pole molded case circuit breaker rated for a continuous current of 63 A across the full ambient range from 40 °C to 70 °C, with no derating required. The ETU850 electronic trip unit provides adjustable long-time, short-time, instantaneous, and ground-fault protection curves, making this breaker suitable for line protection in distribution panels where coordination with downstream devices is critical. The interrupting ratings are class-leading: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.8 kA at 690 V. These figures mean the breaker can safely clear fault currents up to those levels without welding contacts or rupturing the case — essential for high-fault installations like transformer secondaries or large motor control centers. The 800 V rated insulation voltage (Ui) confirms the internal creepage and clearance distances are sized for 690 V line-to-line systems.
Integration & Mounting
The breaker occupies 140 mm width, 181 mm height, and 86 mm depth — a compact footprint for a 4-pole MCCB with integral electronic trip. Panel cutout and busbar spacing should be verified against the existing layout, but the dimensions align with the SENTRON 3VA2 frame family, so a panel designed for a 3VA2 breaker will accept this unit without rewiring. Front-face protection is IP40, sufficient for enclosed distribution boards. The ETU850 release includes a communication function, enabling integration with energy management or remote monitoring systems via the SENTRON communication bus.