What the 630 A rating means for fit
The 1SDA058234R1: The 630 A setting on this plug determines the breaker's continuous current rating. When installed in the correct SACE frame, the breaker will carry 630 A continuously without tripping on thermal overload. The plug also sets the long-time delay curve, short-time pickup, and instantaneous trip thresholds relative to this 630 A base. Verify that your breaker frame accepts this plug variant and that the 630 A setting matches the protected conductor or bus rating.