The factory-made modules of the UMC710D4 series are designed to change over between two power supply sources (AV/SV resp. SV/UPS). They are available for currents up to 630 A. For higher currents, the control module USC107D4 with external power unit can be used. Status indication and alarm texts on the alarm indicator and operator units takes place via bus technology. The modules are suitable for mounting onto all common DIN rail systems (equipment racks have to be provided by the customer).

• Complete solution for a 4-pole changeover between two power supply sources
• Factory-made, tested module for time and cost-saving installation
• Nominal current In 29…630 A (versions with In 29…42 A, preferably used for group 2 distribution boards)
• Variable changeover period t < 0.5 s (< 0.8 s In >100 A)…20 s
• Connection monitoring
• Internal functional testing
• Clear menu structure with LC display allows easy parameter setting