The SENTRON 3VA2063-8JQ32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated 63 A continuous current, designed for line protection. Its breaking capacity reaches 440 kA at 240 V and 330 kA at 415 V, so it can clear high-fault currents without cascading upstream — critical for selectivity in distribution panels where the upstream breaker must stay closed during a downstream fault. Rated current holds flat at 63 A from 40 °C up to 70 °C ambient — no derating needed across the typical panel temperature range. That simplifies panel design: you don't have to oversize the frame for a hot enclosure. The breaker carries a communication function, which means it can report status or trip events over a bus — useful for remote monitoring in a plant-wide power management system.
Sizing and coordination
The adjustable thermal-magnetic trip unit covers a pickup range from 95 A to 756 A, with a full-scale value of 63 A. That range allows coordination with downstream branch breakers: set the long-time pickup low enough to avoid nuisance trips on motor inrush, but high enough to clear a bolted fault before the upstream device sees it. Insulation voltage is rated 800 V, so the breaker can be applied on 690 V systems (where breaking capacity drops to 52.5 kA) — common in heavy industrial or mining installations.
Panel integration
Dimensions: 105 mm wide, 181 mm high, 86 mm deep. The 105 mm width fits a standard 3-pole MCCB footprint on a DIN rail or panel-mount base. Depth of 86 mm leaves room for rear-access wiring in a 200 mm deep enclosure. Operating temperature range -25 °C to 70 °C covers most indoor and outdoor enclosures; storage range -40 °C to 80 °C accommodates cold warehouses. Maximum power loss is 3 W — negligible for thermal budgeting in a crowded panel.