What the ratings mean for fit
The 3VA1180-5EE32-0AA0-ZD00 is a Siemens 3VA1 IEC frame 160 molded-case circuit breaker with a breaking capacity class M rating of Icu=55kA at 415 VAC. That 55 kA interrupting capacity means it can safely clear a fault up to that level without rupturing or cascading to upstream devices — critical for high-fault installations like transformer secondaries or large motor control centers where available fault current exceeds 25 kA. The thermal-magnetic trip unit is a TM220 with ATFM (Adjustable Thermal Fixed Magnetic) characteristics. Overload protection Ir is adjustable from 56 A to 80 A, and the instantaneous short-circuit pickup Ii is fixed at 10 x In (800 A). This makes the breaker suited for feeder or branch protection where the load current is known and the inrush is moderate — per the datasheet, the fixed magnetic setting at 10x In avoids nuisance tripping on motor starting but still clears bolted faults decisively. The 3-pole construction and IEC frame 160 footprint mean it occupies the standard 3-pole MCCB slot in a Siemens 3VA panelboard or standalone enclosure. The suffix ZD00 indicates a nut keeper kit for DC Power OEM in China — a factory-fit accessory for captive nut retention during DC bus assembly, not a functional derating.
Lifecycle and sourcing reality
For a BOM line that calls out this exact order code, the fit is confirmed by the 80 A frame, 55 kA @ 415 V breaking capacity, and the TM220 trip curve. Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.