EPS is an emergency standby power, belongs to the static standby power system, mostly used for lighting systems. There are supporting battery packs, can be a long time emergency lighting, switching time of about 0.05-0.12S.
UPS is an uninterruptible power supply, covering the function of the EPS, strong emergency performance, multi-purpose, wide range of uses, mainly used for the main power supply system, such as; data center servers, medical equipment, computers, and so on. Nowadays UPS power supply is used in various industries. Can be divided into two main types of built-in batteries and external battery packs.UPS power supply zero switching time.