What it is and what the ratings mean
The Siemens 3VA1132-3ED42-0AA0-ZD00 is a 4-pole IEC frame 160 circuit breaker from the 3VA1 series, configured for line protection with a TM210 thermal-magnetic trip unit. The fixed overload protection is set at Ir=32A, and the fixed short-circuit protection trips at Ii=10 x In (320A). The breaking capacity class N delivers an Icu of 25kA at 415V, which means it can safely interrupt fault currents up to that level without damage — critical for ensuring fault clearance and upstream coordination in a distribution panel.
Deployment context and integration
This breaker mounts on a DIN rail inside a standard IEC distribution or motor control center enclosure. The N conductor is unprotected, and the unit includes a nut keeper kit for DC Power OEM installations in China — a detail that matters if you are panel-building for that region or spec. The 4-pole configuration suits three-phase plus neutral applications where the neutral is not switched.