The Siemens 3VA1132-4EE42-0AA0-ZD00 is a 4-pole molded case circuit breaker in the 3VA1 IEC frame 160, rated 32 A with a breaking capacity of 36 kA at 415 V (class S). It's a current-production part, so no last-time-buy scramble — this line is still active.
What the ratings mean for fit
The 36 kA Icu at 415 V means this breaker can safely interrupt fault currents up to that level without failing — critical for panel coordination where the upstream transformer can deliver that kind of energy. The TM220 thermal-magnetic trip unit gives you an adjustable overload protection band (Ir) from 22 A to 32 A, and a fixed short-circuit pickup (Ii) at 10× In, or 320 A. That 10× multiplier is typical for motor branch circuits where you need to ride through inrush without nuisance tripping.
Where it's used
This is a line-protection breaker for IEC-style distribution panels, typically feeding downstream loads like motor starters, lighting contactors, or sub-distribution boards. The 4-pole configuration handles three-phase plus neutral, though the N conductor is unprotected on this variant — the neutral is switched but not monitored for overcurrent. The nut keeper kit and DC Power OEM designation suggest it was configured for a specific Chinese OEM panel build, but the base breaker is a standard 3VA1 catalog item.
Sourcing and lifecycle
Lifecycle stage is current — Siemens is still manufacturing this order code. For a BOM freeze or a line-down spare, this part is sourced and quoted to order through independent distribution.