SENTRON 3VA2510-6HN32-0CC0 — 1000 A MCCB with ETU350 Release
The ETU350 electronic trip unit provides adjustable long-time (tr: 0.5–17 s), short-time (tsd: 0.04–0.4 s), and instantaneous (Ii up to 10 000 A) response values, giving the selectivity engineer fine-grained coordination control for downstream feeders. Breaking capacity reaches 242 kA at 240 V, 187 kA at 415 V, and 74 kA at 690 V — figures that place it in a high-interrupting class for industrial main or tie-breaker positions where fault currents are substantial.
Thermal Management and Panel Fit
Rated continuous current holds at 1000 A from 40 °C through 55 °C ambient; derating begins at 60 °C (955 A), dropping to 815 A at 70 °C. Maximum power loss is 123 W — a figure that drives ventilation planning in the enclosure, particularly when multiple breakers share a compartment. Dimensions are 210 mm wide × 320 mm high × 120 mm deep (8.3 × 12.6 × 4.7 in), a 3-pole footprint that fits standard SENTRON mounting bases. Front protection is IP40; the enclosure cutout and busbar connections must respect the live-part clearance this rating implies.