Prag 20KVA 3-Phase Voltage Regulator (225-456)

Ensure uninterrupted power for your critical equipment with the Prag 20KVA 3-Phase Stabilizer. This sleek cabinet-style design features LED digital display and high-precision regulation. With an impressive input voltage range, it tackles extreme lows and unbalanced voltages. Backed by patented regulator technology, it delivers reliability, cost-effectiveness, and long-lasting performance. Ideal for telecom, medical, industrial, and household applications. Contact us today to elevate your power quality!


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1-3 Days


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Prag 20KVA 3-Phase Voltage Regulator (225-456), a robust and reliable solution for maintaining stable power supply in various industrial, commercial, and household applications. This model is specifically designed to address the challenges posed by extreme voltage fluctuations, ensuring uninterrupted operation of your critical equipment.


The Prag 20KVA 3-Phase Voltage Regulator is a three-phase compensation system equipped with a high-precision regulator and a cabinet-type design with LED digital display. Its compensated structure voltage regulation, composed of voltage regulation transformer and compensation transformer, ensures precise output even under challenging conditions. With its wide input voltage range, including low input voltages as low as 88V, this voltage regulator is capable of handling extreme voltage variations, making it suitable for various applications.


  1. Industries and Mining Enterprises
  2. Printing Companies
  3. Machine Tools
  4. Post and Telecommunications Business
  5. Railways
  6. Construction Sites
  7. Schools
  8. Hospitals
  9. Hotels
  10. Defence Ministries
  11. Scientific Research Centres
  12. Electronic Computers
  13. Precision Machine Tools
  14. Experimental Devices
  15. Elevators
  16. Production Lines


  1. Extremely wide voltage regulation range
  2. Maintenance-free roller type carbon brush
  3. Individual regulation with unique small dimension
  4. High Mean Time Between Failure (MTBF)
  5. Reliable and quiet servo motors
  6. Wheels mounted for easy installation
  7. Start-up delay to prevent over current in rush
  8. Isolation transformer on request
  9. Indoor or outdoor version available on request


  1. BROADCAST: Regulation for broadcast transmitter sites and studios
  2. COMMERCIAL: High-rise buildings, elevator control, large A/C chillers, lighting, and other sensitive critical systems
  3. INDUSTRIAL: Industrial automation, process control, CNC, factory robotics, heavy-load machinery
  4. MEDICAL: X-ray machines, CT scanners, MRI systems, radiation therapy machines, and other medical imaging equipment
  5. TELECOM: Mobile base stations, exchange stations, control centers, and transmission relay stations
  6. HOUSEHOLD: Flats, Houses, etc.


  1. Model: TNS-B 20KVA
  2. Input voltage: 260V – 456V
  3. Output voltage: AC 380V±1-3%, 50/60Hz
  4. Delay Time: Short Delay: 3 – 5 Sec
  5. Protection: Over Voltage, Overload, High Temperature, Short Circuit
  6. Power: 20,000VA
  7. Product Size (cm): 48.5 X 49.5 X 100
  8. Packing Size (cm): 55.5 X 55 X 103
  9. PCS/Carton: 1
  10. N.W. (Kgs): 108.5
  11. G.W. (Kgs): 116.5
  12. Method of Voltage Regulation: Regulation transformer with servo motor
  13. Efficiency: >97% on full load
  14. Functions: Power-on style, Malfunction protection, Short-circuit protection, Lack of phase protection, Over-voltage shutdown, Under-voltage shutdown, Safe start, Surge Protection

Invest in the Prag 20KVA 3-Phase Voltage Regulator for reliable and uninterrupted power supply







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