Fuse disconnect switch M3007

medium-voltagetripolarindoor

are known in the mounting of medium-voltage substations because of their space-saving design. They areundemanding in maintenance also under unfavourableconditions. The parallel movement of the actuatingcross-arms (11) leads per pole to two switching centres lying in a row, and therefore to high reserves for thebreaking capacity.The main contact system of this switch is manufacturedin that way that it can permanently carry currents up to400 A and it has a maximum breaking capacity of 400 A(up to 3 opening operations). In the OFF-position a dead centre position takes carethat the slide with the actuating cross-arms cannot bemoved into the ON-position during the change offuses.DRIESCHER indoor transformer switch disconnectors M3007 can also be delivered with mounted earthing switch (below or above) as well as with auxiliaryswitches (up to 8 contacts) on switch shaft and / oractuating shaft.Manual drives see brochure 774.H.v. h.b.c. fuses see brochure 791.M3007 with cast resin insulators,arc quenching chambers withmain and lagging contacts, tripfree release and quick-breakoperation, base frame made ofsectional steel and fuse holdingcontacts for h.v. h.b.c. fuses withstriker impact acc. to DIN 43625(striker pin 80 N) for all-pole tripping of the switch disconnector.