The Siemens 3VA1132-4EE32-0AA0-ZD00 is a 3-pole IEC frame 160 molded case circuit breaker (MCCB) rated at 32 A with a breaking capacity of 36 kA at 415 V (class S). It carries a thermal-magnetic TM220 release with adjustable overload protection Ir from 22 A to 32 A and fixed short-circuit protection Ii = 10 × In. The Z suffix adds a nut keeper kit for DC Power OEM assembly in China — a detail that matters if your BOM calls for captive hardware in a panel build.
The 3VA1 frame is a common panelboard fit — 3-pole, 160 A frame size, with line-side and load-side lug terminals that accept copper or aluminum conductors. The TM220 thermal-magnetic trip provides inverse-time overload protection and instantaneous short-circuit response. The 36 kA Icu at 415 V means it can safely interrupt a fault up to that level without upstream fuses or a current-limiting reactor, which simplifies coordination in a 400 V distribution panel.