Trip unit MicroLogic 2.3 for ComPacT NSX 630 circuit breakers, electronic, rating 630A, 3 poles 3d https://www.se.com/uk/en/product/C6332D630/trip-unit-micrologic-2-3-for-compact-nsx-630-circuit-breakers-electronic-rating-630a-3-poles-3d/