 This dual input, 10 output Changeover Mains Distribution Unit has been designed for installations that have two coherent mains supplies and allows seamless switching to the backup supply on main supply failure. The custom micro-controller, monitors the two incoming inputs and if either input fails, an alarm will sound to alert the engineer. Assuming that it is the main supply that has failed, the unit will switch to the backup supply within approximately 1/4 cycle. When the main supply reappears, the unit waits for 10 seconds to check that it is stable and then initiates the change back process. This process monitors the relative phase of the two supplies and only allows switch back once the two supplies are in phase. Each input has its own bi-colour LED to display its status. Each output is individually fused and has a bi-colour LED indicator, which displays its status. As this unit is based on our sequential mains unit, when it is first switched on, all LEDs will illuminate red. As the relays switch each output on, it's associated LED will turn Green. If for any reason the fuse blows, or the relay fails to switch, then the LED will turn Red to indicate a fault condition. All IEC output connectors are 10 Amp shuttered units without retaining clips, cables being secured to the integral tie-bar. The input connector is a 10 Amp IEC with retaining clip and mating connector. Alternatively the units are available prewired with a 16A Ceeform (BS4343) connector on a 5m tail. Other configurations are available to special order. PLEASE NOTE: This unit is fitted with a 'Power On' neon and is only available with factory fitted inputs. | 
