Functional spacer for separating bulbs in a multipolar cutoff device, and circuit breaker

摘要

So as to make the best use of the modularity provided by a double-casing multipolar circuit breaker (100), a novel architecture is provided. A potion of the outer housing (48) of the cutoff apparatus (100) is formed directly during the assembly of the cutoff device (600) by means of juxtaposing and rigidly connecting the unipolar cutoff units (10), spacers (46), and sidewalls (50) together. It is thus possible to use the spacers (46) for various functionalities and in particular for modifying the outer appearance of the cutoff device (100) or the nature of the triggering unit after the fact.