The Siemens 3VA1180-5GE42-0AA0-ZD00 is a 4-pole IEC frame 160 circuit breaker rated In=80A with a TM220 thermal-magnetic trip unit. Overload protection is adjustable Ir=56A...80A; short-circuit protection is fixed at Ii=10 x In (800A magnetic pickup). Breaking capacity hits 55kA at 415V — that's class M on the 3VA1 frame, meaning it clears high-fault currents without upstream coordination headaches in a distribution panel.
Mounts on standard DIN rail inside a panel enclosure. The 4-pole configuration covers three-phase plus full neutral protection (100% N conductor protection). The nut keeper kit for DC Power OEM in China means it ships ready for DC-side OEM builds — no field retrofitting of the terminal hardware.