The 3-pole configuration with phase failure detection means it will trip on a lost phase before the motor single-phases and cooks the winding; that's the difference between a nuisance call and a rewind. Interrupting capacity is 330 kA at 240 V AC, dropping to 242 kA at 415 V and 440 V, then 187 kA at 500 V, and 5.2 kA at 690 V. That 330 kA figure at 240 V covers high-fault scenarios like a transformer secondary close to the service entrance; the 5.2 kA at 690 V is still adequate for most 690 V motor circuits but worth checking against your available fault current if you're on a high-capacity industrial grid.
Fit and integration into the panel
Physical envelope is 181 mm high by 105 mm wide by 86 mm deep. No undervoltage release fitted on this variant, so it won't drop out on a sag; that's correct for motor protection where you want the starter contactor to handle undervoltage, not the breaker.
Maximum power dissipation is 46 W at rated current.
