Uninterruptible power supply 24 V DC UPS with highly capacitive double-layer capacitors

Long-life energy storage device make the battery replacement unnecessary

Uninterruptible power supplies normally save the electrical energy in lead-acid batteries. Temperatures as they occur in the control cabinet, however, shorten the service life of the battery considerably and require a regular replacement – at 40 °C ambient temperature, for example, annually.
The innovative SITOP UPS500, on the other hand, is based on completely maintenance-free capacitors with a long service life. In 8 years, even at 50 °C, they still have more than 80% of their capacity. This means that the energy storage unit does not have to be replaced. Since the capacitors do not emit any gas, the control cabinet does not have to be ventilated. A further advantage is the significantly shorter charge times required for the double-layer capacitors which ensure a fast buffer readiness after a power failure.

For flexible use in a wide range of applications
The 24 V DC UPS comes in degree of protection IP20 for DIN rail mounting and in IP65 for distributed use. The IP20 version SITOP UPS500S consists of a 15 A basic unit with integrated energy storage as 2.5 or 5 kWs version. The compact basic unit can be combined with 5 kW expansion modules in order to extend the buffer time. Up to 3 expansion modules can be easily connected in parallel by means of a plug-in connection. The IP65 version SITOP UPS500P has capacitors for 10 kWs and supplies up to 7 A output current. The oblong metal enclosure is, for instance, also suitable for mounting on support arm systems.
Communication with the controller takes place via USB and the UPS500S also via relay contacts. The free software tool supports the further processing and response of the PCs, such as  SIMATIC PC, which are system-tested with SITOP UPS500.

The backup time is shorter than with lead-acid battery solutions, but in many cases it suffices in order to back up data and shut down the machine in a controlled manner.

	SITOP UPS500S
	Download Software for DC UPS