MCCB with ETU850 — 100 A, 4-Pole, Line Protection
The Siemens SENTRON 3VA2010-6KP42-0AA0 is a 4-pole molded case circuit breaker rated for 100 A continuous current, designed for line-protection duty in distribution panels and industrial switchboards. The ETU850 electronic trip unit provides adjustable overload and short-circuit protection curves, with a communication function for integration into higher-level monitoring systems. Breaking capacity reaches 242 kA at 240 V AC, 187 kA at 415/440 V, and 121 kA at 500 V — figures that place this MCCB comfortably in high-fault-current applications such as transformer secondaries or large motor control centers. At 690 V the rating drops to 3 kA, so verify system voltage before specifying. The 100 A rating holds across the full ambient temperature range from 40 °C to 70 °C with no derating required, simplifying panel thermal calculations. Power loss at rated current is 13.5 W maximum.
Panel Integration & Compliance
Dimensions are 181 mm height, 140 mm width, and 86 mm depth — a footprint that fits standard SENTRON 3VA panel cutouts and busbar systems. The front face carries IP40 protection; the enclosure is rated for installation in a switchboard or enclosure with a higher overall IP rating. The ETU850 trip unit supports communication, enabling remote monitoring of load current and trip events via the SENTRON communication bus. No undervoltage release or ground-fault monitoring is integrated on this variant; those functions require external modules or a different order code.