What this MCCB delivers
The Siemens SENTRON 3VA1116-6FD42-0AA0 is a 4-pole molded case circuit breaker rated for 80 A continuous, with a TM210 thermal-magnetic overcurrent release designed for line protection. Its interrupting capacity reaches 220 kA at 240 V, 154 kA at 415 V, and 75.6 kA at 440 V — figures that give the panel builder real selectivity headroom against upstream faults without cascading. At 690 V it still holds 17 kA, so it handles industrial supply voltages without derating the short-circuit rating. The thermal-magnetic curve holds 160 A through 50 °C ambient, then tapers to 150 A at 70 °C. That means the breaker can carry a full 80 A load in a warm enclosure without nuisance tripping — a common pain point when panels are packed tight and ventilation is marginal. Rated insulation voltage is 800 V, and the front face carries IP40 protection, so it is suited for general-purpose indoor switchgear.
Panel fit and thermal budget
The 3VA1116-6FD42-0AA0 occupies a 101.6 mm wide by 130 mm tall footprint, 70 mm deep — a standard 4-pole MCCB envelope that drops into most SENTRON distribution blocks and panelboards without re-drilling gland plates. Maximum power loss is 38 W, which should be factored into the enclosure's thermal calculation, especially when multiple breakers are ganged in a single cabinet.