What this breaker is and what the ratings mean
The Siemens 3VA1032-4ED42-0AA0-ZD00 is a 4-pole IEC frame 100 circuit breaker with a 32 A rated current (In) and a breaking capacity class S rating of 36 kA at 415 V. That 36 kA Icu means it can safely interrupt a fault current up to 36,000 amps at 415 V without welding its contacts or rupturing the case — a critical spec for high-fault panels fed by large transformers or close to the utility service entrance. The TM210 line protection provides fixed thermal-magnetic overload protection set at Ir=32 A, and the short-circuit trip is fixed at Ii=10 x In (320 A), so it's a non-adjustable, drop-in replacement for a 32 A branch circuit on a 415 V three-phase system.
Deployment context and integration
This breaker mounts in a standard DIN-rail enclosure or panel. The 4-pole configuration covers three-phase plus neutral, but note the N conductor is unprotected — the neutral pole is a switched-only pole without overload or short-circuit protection, so it's intended for systems where the neutral is bonded to ground at the source and fault current returns through the phase poles. The nut keeper kit is included for secure DC Power OEM mounting in China, which suggests this variant was configured for a specific OEM panel build where the breaker is bolted rather than DIN-clipped.