It carries a 330 kA interrupting capacity at 240 V — that figure drops to 242 kA at 415 V and 440 V, and to 187 kA at 500 V, so the available fault current at your service entrance determines which voltage column you read. At 690 V the rating falls to 3 kA, which means this breaker is not intended for 690 V line-side protection in high-fault installations.
Thermal performance across the panel ambient range
The 86 mm depth and 140 mm width fit standard Siemens SENTRON mounting footprints, so it swaps into existing 3VA panel layouts without re-drilling gland plates.