The Siemens 3VA1180-4GF42-0AA0-ZD00 is a 4-pole IEC frame 160 circuit breaker in the 3VA1 series, rated at 80 A with a breaking capacity class S — Icu of 36 kA at 415 V. The TM240 thermal-magnetic trip unit gives adjustable overload protection (Ir = 56 A to 80 A) and fixed short-circuit protection (Ii = 5 to 10 x In), so you set the pickup to match the downstream cable or load without swapping the breaker body.
The 4-pole configuration with N-conductor protection at 100% means the neutral pole is switched and protected at the same rating as the phase poles — important for 4-wire systems where the neutral carries load current, not just fault current. The nut keeper kit included indicates it is prepared for DC Power OEM builds in China, where captive hardware prevents loosening under transport vibration.