Siemens 3VA1132-6GE46-0AA0 — 32 A, 4-pole SENTRON MCCB for line protection
The 4-pole configuration covers three-phase plus neutral, common for TN or TT systems where you need full isolation on all live conductors. Breaking capacity is the headline: 220 kA at 240 V AC, dropping to 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 500 V and 690 V. At 415 V, 154 kA still covers most industrial main switchboard applications. The sharp drop to 17 kA above 500 V means you need to verify the system voltage against the rating table before specifying.
That's a shallow derating curve, which means the breaker runs cool and the bimetal element is well-calibrated.
Physical footprint: 101.6 mm wide (4 inches), 130 mm tall (5.12 inches), 70 mm deep (2.76 inches).