The Siemens 3VA1180-3EF32-0AA0-ZD00 is a 3-pole IEC frame 160 molded case circuit breaker rated 80 A continuous, with a TM240 thermal-magnetic trip unit and ATAM (adjustable thermal, adjustable magnetic) adjustment. The overload protection Ir is adjustable from 56 A to 80 A, and the short-circuit protection Ii is adjustable from 5 to 10 times In (400 to 800 A). That adjustability lets you coordinate the breaker with downstream loads and upstream protective devices without swapping the trip unit.
Deployment context
The nut keeper kit (included per the order code suffix) is a detail for DC Power OEM builds in China, ensuring the terminal nuts stay captive during assembly. For a panel builder, that means no loose hardware to chase on the line.