What this MCCB carries
The Siemens SENTRON 3VA1116-3GF42-0AH0 is a 4-pole molded case circuit breaker rated for line protection. It carries a TM240 thermal-magnetic overcurrent release and is rated 160 A continuous at 40 °C, with a thermal derating curve that holds 160 A up to 50 °C, then steps down to 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C — so in a warm panel you lose less than 7 % of the rating at the top end. Rated insulation voltage is 800 V, so it's comfortable on 690 V systems. The front carries IP40 protection — fine for a clean indoor panel, not for washdown areas.
Auxiliaries and dimensions
Factory-fitted with 2 auxiliary switches plus 1 trip alarm switch (HQ configuration). No undervoltage release, no ground-fault monitoring, no communication module — this is a bare breaker for a standard distribution board. Power loss is 38 W maximum at rated load. Footprint is 101.6 mm wide by 130 mm tall by 70 mm deep — about 4 by 5.12 by 2.76 inches. That's the standard 4-pole SENTRON 3VA frame size; it drops into the same mounting cutout as other 3VA breakers of this pole count. Trip indicator is present on the front, so you can spot a tripped breaker without opening the door.