INTERRUPTER DEVICE HAVING AT LEAST ONE SINGLE-POLE PHASE UNIT COMPRISING A CONTACT BRIDGE AND CIRCUIT BREAKER COMPRISING SUCH A DEVICE

摘要

The invention relates to an interrupter device (600) having at least one single-pole phase unit (10), said unit including a movable contact bridge (22), a pair of stationary contacts (41, 51) engaging with said movable contact bridge and connected, respectively, to a current distribution conductor (4, 5) and two arc interrupter chambers (24) opening out onto an open space of the contact bridge (22), and including a stack of at least two de-ionizing fins (25) separated from one another by a gas exchange space. Each interrupter chamber (24) is connected to at least one interrupter gas exhaust channel (38, 42), said exhaust channels discharging onto an upstream surface of the phase unit (10) housing (12), said upstream surface being positioned opposite another downstream surface intended to be placed in contact with triggering means (7).