Three-pole construction, rated insulation voltage 800 V, and an interrupting capacity that starts at 220 kA at 240 V and steps down to 17 kA at 690 V.
Interrupting ratings — what the numbers mean
At 415 V the SCCR is 154 kA; at 440 V it drops to 121 kA; at 500 V and 690 V it holds at 17 kA. The steep drop above 440 V is typical of a breaker whose arc-chamber and contact design are optimized for the 240–415 V range.
Built-in accessories and field-fit
The supplied basic switch order code is 3VA11326EF320AA0 — useful if you need to cross-reference the internal mechanism for spares.