The YES BOX range provides varying capacities from 40 amps / 10 kVA through to 120 amps / 30 kVA over 3 models. This provides for lighting loads of between 75 - 600 X 36 Watt fluorescent lamp equivalent loads. Very large sites may benefit from a mixture of model types to provide best economic solutions.
The YES BOX sets the standard with its 3-phase application and sub-distribution ability. Models 3420 and 3630 are 3 phase units with each phase independently connected, managed and controlled. The 3630 is housed in two boxes.
The model 1210 is a single-phase unit that can be used as a filler where load balancing is critical or where lamp loads warrant an additional unit to completely (and economically) capture the total load.
For example 700 lamps = 1 X 3630 (600 lamps) and 1 X 1210 (100 lamps). The YES BOX’s unique 3~phase configuration ensures that loads are correctly balanced and that existing Distribution Panel phase-loads are not exceeded.