MCCB with ETU320 — 100 A continuous, flat derating curve
The Siemens SENTRON 3VA2110-7HL32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current, with a flat thermal derating curve holding 100 A from 40 °C through 70 °C — no reduction needed across typical panel ambient temperatures. Its ETU320 electronic trip unit supports an adjustable overload trip range from 150 A to 1,200 A. Breaking capacity reaches 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V — the steep drop above 500 V means the 690 V rating governs any 690 V bus application.
Integration into a panel — dimensions and mounting
At 105 mm wide × 181 mm high × 86 mm deep, this 3VA frame fits standard Siemens 3VA mounting accessories and busbar systems; verify the existing panel cutout or DIN-rail adapter if retrofitting into a different brand's enclosure.
Maximum power loss is 10 W.