It carries a 32 A continuous rating at 40 °C ambient, and the current holds flat through 50 °C — only dropping to 31 A at 55 °C and 30 A at 70 °C, which means you can load it near its nameplate in a warm enclosure without derating panic. The 3-pole construction and 800 V rated insulation voltage suit it for 400 V three-phase mains, and the 220 kA breaking capacity at 240 V handles high-fault utility feeds. The 10.6 W maximum power loss is manageable for a 32 A frame; factor it into your enclosure thermal budget if you're stacking several breakers in a row. The shunt trip lets you remotely open the breaker via a control signal — useful for emergency-stop circuits or interlocking with a fire-alarm panel.
The 76.2 mm width (3 inches) is the standard 3-pole MCCB footprint — it occupies one 3-module position in a Siemens SENTRON distribution board.
Trip indication and design details
A trip indicator and a voltage trigger are built in. The trip indicator gives a visible flag when the breaker has opened on fault — useful for a technician walking a row of panels. The voltage trigger enables remote tripping via the shunt release.