What it is and what it does
The Siemens SENTRON 3VA1032-3ED36-0HH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, with a continuous current Iu of 32 A and an insulation voltage Ui of 800 V. Its interrupting capacity reaches 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V — figures that govern selectivity and SCCR coordination in a distribution panel. The TM210 thermal-magnetic release handles overload and short-circuit protection without a separate undervoltage release or phase-failure detection.
Ratings and what they mean for fit
The 32 A rating holds flat from 40 °C to 50 °C, then derates to 30.72 A at 55 °C and 28.8 A at 70 °C — so in a warm enclosure (say 55 °C ambient) the breaker still carries 30 A continuously without nuisance tripping. The 75.6 kA at 240 V is the maximum fault current it can safely interrupt; below 240 V the rating is not stated, but at 415 V it drops to 52.5 kA and at 690 V to 7.5 kA. For a 480 V panel the 32 kA at 440 V is the closest published figure — expect a lower value at 480 V, so verify coordination with the upstream device.
Panel fit and integration
The breaker measures 76.2 mm wide, 130 mm high, and 70 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or screw-mount panel layouts. Front IP40 protection means it is suited for dry indoor enclosures; not rated for washdown or outdoor exposure. The trip indicator and voltage trigger are built in, and the auxiliary contacts (2 NO/NC + 1 alarm) are wired via the HQ terminal block. No communication module or ground-fault monitoring is fitted.