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1 rail-mounted dual energy conversion isolation switch has four applications of on, off, conversion and isolation It could be freely switched on and rancid between two loads carried via a group of lines, or on two strength assets 2 rated recent of this product is 40A/63A/125A, and it's handy and secure to install and cord on the handbook rail 3 role of the incoming and outgoing wires could be adjusted according to precise desires (the higher and lower out should not necessarily required, when used for dual strength switching, the lower in and upper out should be used)