DRESDEN-LF1120KL

Applications:

• Data Centers: Ensures uninterrupted operation for servers and networking equipment.
• Industrial Systems: Supports CNC machines, automation lines, and production facilities.
• Commercial Facilities: Provides reliable power for offices, banks, and retail environments.
• Telecom Systems: Maintains stable operation for telecom base stations and networks.
• Medical and Banking Systems: Protects sensitive equipment such as diagnostic devices, ATMs, and banking systems.
• Precision Instruments: Guarantees clean, stable power for laboratories and measuring devices.
• Other Critical Infrastructure: Ideal for any facility where uninterrupted, high-quality power is essential.

Main Features:

• IGBT Inverter with Output Isolation Transformer: High efficiency and stable output.
• Online Double Conversion Technology: Provides continuous, clean sine wave power.
• Wide Input Voltage Range: Compatible with fluctuating and unstable power conditions.
• Communication Ports: RS232/RS485 for remote monitoring.
• Optional SNMP Adapter/Dry Contact: Network-based monitoring and management capability.
• High Reliability and Performance: Designed for mission-critical applications.
• External Battery Pack (Optional): Expandable backup time for extended power support.
• Maintenance Switch: Allows safe service and maintenance without shutting down the load.
• Advanced Protection Features: Includes overload, short-circuit, surge, and low-battery protection.
• User-Friendly LCD Display: Shows input/output voltage, battery status, load, and alarms for easy monitoring.

1. What is the DRESDEN-LF1120 Online UPS?
   The DRESDEN-LF1120 is a 20kVA true online double-conversion UPS designed to provide stable and uninterrupted power to critical equipment.

2. Who is the official importer of this UPS in Bangladesh?
   The official importer is TNS Engineering Ltd.

3. What type of UPS is it?
   Online double-conversion UPS with zero transfer time during power outages.

4. What is the power rating of this UPS?
   20 kVA / 18 kW output capacity.

5. What is the input voltage range?
   165–275V AC with ±25% tolerance.

6. What is the output voltage regulation?
   220/230V ±0.5% for stable power output.

7. What battery configuration does it use?
   Typically 28 × 12V batteries (internal or external, 9Ah–200Ah).

8. Can external batteries be connected?
   Yes, external batteries can be added for extended backup duration.

9. How long does the UPS provide backup?
   Backup depends on load and battery capacity—standard internal batteries provide around 10–15 minutes at full load.

10. What is the battery recharge time?
    Batteries recharge to 90% capacity within 8–10 hours.

11. Does it support hot-swappable batteries?
    Yes, batteries can be replaced without shutting down connected equipment.

12. What is the transfer time between mains and battery?
    Zero milliseconds (0ms) due to online double-conversion design.

13. What is the efficiency of the UPS?
    Up to 91% in AC mode, 87% in battery mode, and 95% in ECO mode.

14. What protections are built-in?
    Overload, short circuit, overvoltage, undervoltage, battery failure, and over-temperature protection.

15. What is the overload capacity?
    Can handle 125% load for 1 minute and 150% load for 200ms.

16. Does it protect against surges and spikes?
    Yes, it includes built-in surge protection and AVR for stable voltage.

17. Where can the DRESDEN-LF1120 UPS be used?
    Data centers, banks, telecom, servers, medical equipment, and industrial environments.

18. Is it compatible with generators?
    Yes, works with diesel and petrol generators efficiently.

19. Can it be used for home appliances?
    Not recommended; designed primarily for industrial and IT applications.

20. Is it suitable for sensitive equipment like medical devices?
    Yes, the pure sine wave output ensures safe operation.

21. Can it run air conditioners or motors?
    Small motors within capacity are supported; heavy inductive loads are not recommended.

22. What communication ports are available?
    RS232 standard, optional SNMP, and dry contacts.

23. Is remote monitoring supported?
    Yes, via SNMP card and management software.

24. Does it have an LCD display?
    Yes, shows real-time status, battery level, and fault indicators.

25. Can alarms be configured?
    Yes, audible and visual alarms for faults and battery status.

26. Can it be monitored via network?
    Yes, with an SNMP adapter via LAN/WAN.

27. What is the operating temperature range?
    0°C to 40°C with humidity up to 95% non-condensing.

28. What is the noise level?
    Less than 60 dB at 1 meter distance.

29. Does it require special installation?
    It should be installed in a ventilated, dust-free, temperature-controlled environment.

30. Can it be rack-mounted?
    Typically a tower type, but rack-mount options may be available.