Fail-safe power supplies for unsecured power nets CBS - Capacitor Backed Power Supply › Capacitor buffered 24 V power supply unit › Maintenance-free by long-lasting ultra capacitors › Microcontroller supported loading and unloading of the ultra capacitors › High life time: 30 years@30° degrees Celsius › 500 J energy storage for a buffer time of e.g. 3 min @ 100 mA / 23.5 V load › Broad range voltage input 115 … 230 V AC › Operation and loading state monitoring by 2 potential-free contacts and 3 LEDs › Operation temperature range: -20 ... +60° C › Mounting onto DIN rail TS35

CBS-capacitor backed power supply Technical description The buffered dc power supply of the type CBS has internal ultra capacitors as an energy storage. In normal operation when input voltage is available the unit supplies the attached DC consumers and contains the charge of the capacitors. At an interruption of the input voltage the energy of the ultra capacitors is released regulated. By a DC-DC converter the load is buffered until it is unloaded. The buffer time is dependent on the state of charge of the capacitors and the discharging current. After switching on the input voltage the capacitor...

fail-safe power supplies for unsecured power nets Assigned relay contact Operation Steady light Input voltage available and respectively device is being supplied internally with energy. Off No input voltage or capacitor load exhausted Operation Steady light Input voltage available (UE > UEmin) Off No or too less input voltage Capacitor storage Steady light Energy stored in capacitor > 80 % Off Energy stored in capacitor < 30 % Flashing light slow (0.8 Hz) Loading of capacitors up to 80 % of the energy Flashing light fast (3.2 Hz) Unloaded capacitor (Device is in self-supplying mode ) Relays mains...

CBS-CAPACITOR BACKED POWER SUPPLY Fuse protection Connection terminals Cross wire section rigid or flexible without wire sleeves with wire sleeves 2 A (slow blow) (internally) 2 A (slow blow) (externally) Load on relay contacts Protection class Storage temperature Operation and ambient temperature Terminal assignment / Dimensional drawing Mains voltage Relay mains voltage K1 capacitor storage capacitor module Technical specifications are subject to change without prior notice. Ordering code Article number effective buffer capacity Elektra Elektronik GmbH & Co Storcontroller KG | Hummelbuhl 7-9...