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PULS
PULS

24 V dc UPS for external battery. 10 A

  • Requires just one 12 V dc battery
  • Selectable buffer times
  • Relay outputs for status
  • Optimized charging of battery

Product description

A DC-UPS system consists of a control unit, battery and power supply with suitable power for the application. In the event of a power outage, the battery is automatically switched in and supplies the connected loads. The control unit requires just (1) 12 V battery that then transforms the battery voltage up to 22.3 V dc. Two batteries do not need to be matched with one another and the output voltage does not follow the battery's discharge curve but is instead constant at 22.3 V. The battery capacity is utilized 100 % compared with two batteries connected in series, where one of the batteries is not fully charged. Two relay outputs indicate status; the module is ready (battery capacity >85 %) and the module is active (buffer mode). The control unit tests the battery's condition in cycles. When it is time to replace the battery, a relay output is activated (replace battery). At the front, optimized final charging voltage in relation to ambient temperature is selected. There are three available alternatives: 10°C, 25°C and 40°C. The buffer time can be set in different time ranges to save battery capacity. When choosing constant discharge, the output voltage will be active until the battery reaches deep discharge and the control unit then disconnects the battery. In the event of a battery fuse fault, the “ready” output is deactivated and a red LED lights on the control unit. The output is current-limited and turns itself off about 5 seconds after a short circuit to spare the battery and at the same time, avoid tripping the battery fuse. In the event of a short circuit in buffer mode, the module produces about 20 A, which helps trip any secondary fuses. Monitoring of the battery fuse and current limitation in the event of short circuits provides increased reliability and guarantees that the UPS will function after a short circuit. The input is galvanically isolated from the output side.


Battery holder for DIN rail

Power supply

  • Available for 7 and 24 Ah batteries
  • Puls DIN rail bracket
  • Wiring incl. 30 A fuse
  • Heavy duty terminal blocks
  • Quick and easy battery replacement

 

Parts Price

Part

Puls 24 V DC UPS

UB10.245
DC UPS 24V dc I/P 24V dc 10A & 12V dc 5A O/P 3.9-40Ah

Technical data

Input data

Input voltage from the unit 24 V DC
Input voltage from the battery 12 V DC
Input voltage for battery connection 22,8 V DC
Input current during charging 1,2 A

Output data

Output voltage min 12 V DC
Output voltage max 24 V DC
Output current at 12 V dc 5 A
Output current at 24 V dc 10 A
Output voltage for battery operation 22,25
Output voltage normal operation 24 V DC
Output voltage at buffering 22,25 V DC
Output current for battery operation max 10 A (15 A @ 5 s)
Output current during operation max 15 A

Efficiency / Lifetime / MTBF

Efficiency 97,5 %
Life span 114 000 h @ 10 A, 40 °C
MTBF (IEC 61709) 788 000 h @ 10 A, 40 °C

Dimensions

Width 49 mm
Height 124 mm
Depth 117 mm
Weight 0,65 kg

Other

Approvals CB, CE, CSA, CSA US, EAC, EX, IECEx, UL
IP class IP20
Charging the battery type 1,5 A
Material protection Aluminium
Ripple max 20 mV pp
Voltage level for battery connection 22,3 V DC
Power drop from +60 °C to + 70 °C 5 W/°C
Temperature min without derating -25 °C
Temperature max without derating 50 °C
Permitted battery sizes 3,9-40 Ah
Type Power Supply DC-UPS

Resource

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