Low-voltage (LV) circuit-breaker esp. large multi-pole circuit-breaker

摘要

A low-voltage circuit-breaker has a housing with a rear wall and a front wall, where the front wall and the back wall are separated from one another by a division joint extending vertically in the working position. For mutual centring of the housing parts keyed, directional arrangements (9) are provided on the housing parts which are to be joined together, by means of which the mutual orientation of the switch parts is guaranteed during assembly of the LV circuit- breaker (1).