The Siemens 3VA1132-6EF42-0AA0-ZD00 is a 4-pole IEC frame 160 circuit breaker with a breaking capacity class H rating of Icu=70kA at 415 V. That 70 kA interrupting rating means it can safely clear a fault up to that level without upstream devices needing to coordinate — a key spec for high-fault panels where a standard 36 kA or 50 kA breaker would cascade. The TM240 ATAM thermal-magnetic trip unit gives you adjustable overload protection (Ir=22 A to 32 A) and fixed short-circuit protection (Ii=5 to 10 x In). In=32 A is the nominal rating; the Ir dial lets you match the breaker to the actual load current, not the other way around.
Deployment and integration
This breaker mounts on a standard DIN rail inside a panel enclosure. The 4-pole configuration with N-conductor unprotected is a common arrangement for 3-phase + neutral systems where you want the neutral bus solid (no overcurrent protection on N) — typical in IEC distribution boards. The nut keeper kit is included for the DC Power OEM variant, which suggests this unit is prepped for DC-side applications (battery banks, rectifier outputs) where the mechanical retention of the keeper matters against vibration.