Description: ACDL is a product of solid state circuit that caters to the critical needs of all modern buildings which are backed up by alternate generator power source besides mains supply current. Features include source changeover - in case of mains current failure, the ACDL automatically senses and actuates the in-built changeover mechanism to the generator source, at sub-distribution level, in individual apartments of big housing complex; current limiter - what more ACDL controls the use of expensive generator supply source, functioning as a current limiter; whenever the power is drawn by individual user beyond the preset current level the line is automatically switched Off, necessitating the user to reduce the load, in order to automatically switch On again; the cycle of generator source being switched Off gets repeated as long as the current is in excess of preset level; unrestricted choice of circuit: while on the generator supply too the user has the choice of using any load points without restrictions and no separate wiring is needed; time delay prevents faults - there is a built-in time delay of 6 to 15 sec onds, every time the ACDL changeovers automatically from mains to generator source; this prevents electrical faults and avoids electrical surges and overload on the generator; on restoration of mains current, ACDL automatically reverts back to the mains source instantly; allowing unrestricted load current; LED display - each stage of operation and also the status of input as well as output loads are indicated by colourful LED lamps for easy identification of operational status. The product is available in four different ranges to cater to SPN as well as TPN supply with neutral isolation over the entire range.