Automatic voltage stabilizer | 20kVA | 230V | 90-280V AC | single-phase | relay AVR stabilizer | LED display | protection against voltage surges

Technical Specifications

Product type: automatic voltage stabilizer (AVR)
Type: relay stabilizer
Phases: 1 phase
Current type: AC
Purpose: voltage stabilization and protection
Certificates: CE / ISO9001
Warranty: 1 year
Input voltage: AC 90V–280V
Frequency: 50Hz / 60Hz
Phase: single-phase
Output voltage: AC 220V
Stabilization accuracy: ±10%
Frequency: 50Hz / 60Hz
Efficiency: 0.96
Power factor: 80%
Protection functions: Protection against overvoltage, undervoltage, short circuit, overload, automatic relay control, integrated MCB circuit breaker
Start delay: 6 seconds (short mode); 120 seconds (long mode)
Operating temperature: -5°C to +60°C
Humidity: 20%–90%
Noise level: ≤50dB 

Dimensions: 332 x 306 x 422 mm 

Functions

Automatic voltage stabilization – maintains a more stable output voltage even during large power grid fluctuations
Overvoltage protection – protects connected equipment from dangerous power surges
Undervoltage protection – prevents equipment from operating under unstable or excessively low voltage conditions
Overload protection – automatically protects the system from excessive load
Short circuit protection – helps prevent equipment damage in case of an авария
LED voltage display – displays input and output voltage parameters in real time
Relay control – quickly reacts to network changes and stabilizes voltage
Start delay – protects compressor equipment and sensitive electronics after a power outage
Universal application – suitable for both household and professional equipment

Usage

At home and in country houses: An excellent solution in areas where lights flicker, voltage drops occur, power outages are frequent, or old electrical networks are used. The stabilizer protects televisions, refrigerators, computers, WiFi routers, gas boilers, heat pumps, and security systems.
For electricians: Used when designing backup power systems, server rooms, automation cabinets, security systems, video surveillance systems, and UPS circuits.
For engineers and technical personnel: Helps stabilize production equipment, laboratory instruments, sensitive electronics, CNC machines, and measurement systems.
For offices and commercial premises: Suitable for cash registers, servers, network equipment, computers, and security systems.

Advantages

Wide 90-280V input range
Automatic stabilization
LED display
Overvoltage protection
Overload protection
Short circuit protection
Suitable for sensitive electronics
Fast relay operation
Start delay function
CE certification

Disadvantages

Relay stabilizers may produce switching noise
Not suitable for highly sensitive laboratory equipment requiring an extremely precise sine wave
High-power models take up more space
Must be properly selected according to load requirements

What is a voltage stabilizer used for?

It protects equipment from voltage drops, overvoltage, and power grid fluctuations.

Does the stabilizer display voltage?

Yes, the integrated LED display shows input and output voltage in real time.

Can it be used in areas with a weak electrical network?

Yes, the stabilizer operates even under highly fluctuating voltage conditions from 90V to 280V.

Does the device have overload protection?

Yes, the integrated protection helps safeguard both the stabilizer and the connected equipment.