SFB technology provides up to six times nominal current for 12 ms. This short burst of current allows individual circuit breakers to react to overloads. The SFB technology’s power reserve is also available for loads with high start-up current peaks. The power supplies also include expanded diagnostics. When the power supply is operating under nominal conditions, a “DC OK” LED indicates the status locally, while a dry contact provides remote indication. In Power Boost, there is an additional LED and transistor output to indicate the power supply is supplying more than nominal current. During overload conditions, the “DC OK” LED and its corresponding dry contact output change state to indicate possible fault conditions.