SITOP UPS501S expansion module 5 kWs for UPS500S (2, 5 kWs, 5 kWs) Protection class IP20 *EX approval no longer available* SITOP UPS501S is the optimal addition to the UPS500S to further increase the buffer time. A maximum of three expansion modules based on capacitors can be connected to the basic device. It is attached to a standard profile rail.
