The APC Symmetra LX is a modular, N+1-redundant UPS platform built for data centres and server rooms; this listing is a 12kVA unit, one step down in capacity from the 16kVA Symmetra LX units elsewhere in this catalog. Its modular power-module design typically allows capacity to be scaled up within the platform's range as load grows, rather than requiring a full unit replacement. As with any UPS in this class, it's intended to keep critical server/network/storage infrastructure running through utility power interruptions -- a frequent, practical concern for South African data centres and server rooms given load-shedding -- and is normally paired with external battery packs sized for the required runtime.