Three-pole construction handles three-phase motor loads, and the interrupting ratings climb to 330 kA at 240 V, dropping to 242 kA at 415 V and 440 V, then 187 kA at 500 V, and 3.7 kA at 690 V — know your available fault current at the point of installation.
Interrupting capacity of 330 kA at 240 V means this breaker can clear a massive fault on a low-voltage distribution bus; at 690 V the same breaker drops to 3.7 kA, so it's not a universal high-voltage device. The adjustable trip range spans 300 A to 1 500 A — set it to match the motor full-load amps plus starting current, not the MCCB's own 100 A frame.