SUNTEK QUANTUM 3000 VA is a single-phase inverter voltage stabilizer based on double-conversion technology, designed to provide a stable and reliable power supply for sensitive electronic equipment and engineering systems operating in electrical networks with unstable voltage conditions.
The unit is engineered for continuous 24/7 operation and is intended for applications where uninterrupted voltage stabilization and maximum equipment protection are required.
The stabilizer contains no mechanical regulation components and does not employ an automatic bypass system that transfers raw utility voltage directly to the load.
Operating Principle
SUNTEK QUANTUM stabilizers utilize double-conversion technology:
- incoming AC voltage is converted into DC voltage;
- the DC voltage is subsequently converted into a newly generated AC output with controlled electrical parameters.
This operating principle provides:
- output voltage independent of input voltage fluctuations;
- seamless voltage regulation without switching steps;
- instantaneous response to mains voltage variations;
- pure sine wave output under all operating conditions.
Voltage Regulation and Protection
Voltage regulation is performed entirely electronically without relays, servo motors or other mechanical switching elements.
Under overload conditions, abnormal operating parameters or internal fault conditions, the stabilizer does not transfer utility voltage directly to the connected equipment. Instead, the protection system disconnects the load.
This design eliminates the possibility of unstable, reduced or non-regulated mains voltage reaching connected equipment.

Load Connection
The SUNTEK QUANTUM 3000 VA is equipped with:
- output socket;
- terminal block for permanent wiring connections.
Loads may be connected simultaneously via both connection points, provided that the combined load does not exceed the rated capacity of 3000 VA.
This configuration allows convenient connection of both permanently installed engineering systems and additional electrical equipment.
Typical Applications
The SUNTEK QUANTUM 3000 VA is suitable for powering:
- gas boilers and complete boiler room systems;
- circulation pumps;
- heating and water supply systems;
- refrigeration and HVAC equipment;
- servers, networking and telecommunications equipment;
- CCTV, security and automation systems;
- household appliances with electronic controls.
Its power reserve enables protection of complete engineering systems rather than individual devices.
Key Safety Advantage
Unlike many inverter stabilizers available on the market, SUNTEK QUANTUM models do not utilize an automatic bypass mode that can transfer unstabilized utility voltage directly to connected equipment.
Output voltage is always generated by the inverter stage and remains independent of utility power conditions.
In the event of overload, abnormal operating conditions or internal faults, the stabilizer safely disconnects the load instead of transferring raw mains voltage.
Therefore, only two operating scenarios are possible:
Normal Operation
Stable 230 V output voltage with ±2% regulation accuracy and pure sine wave output.
Protective Shutdown
Automatic disconnection of the load without exposure to unstabilized utility voltage.
The possibility of 187 V, 240 V or any other non-regulated mains voltage being transferred directly to connected equipment is eliminated by design.
Technical Specifications
- Rated Power: 3000 VA
- Maximum Active Load: up to 3000 W
- Maximum Input Current: approximately 13.5 A
- Nominal Input Voltage: 230 V
- Input Voltage Operating Range: 90–310 V
- Nominal Output Voltage: 230 V
- Voltage Regulation Accuracy: ±2%
- Frequency: 50 / 60 Hz
- Output Waveform: Pure Sine Wave
- Response Time: 0 ms
- Power Factor: 0.98
- Efficiency: up to 98%
- Stabilization Technology: Inverter, Double Conversion
- Automatic Bypass: No
- Manual Bypass: Yes
- Output Socket: Yes
- Terminal Block: Yes
- Cooling System: Natural convection with automatic fan-assisted cooling
- Noise Level: up to 10 dB
- Dimensions: 424 × 238 × 102 mm
- Weight: 6 kg

Operating Conditions
- Continuous Duty Operation (24/7)
- Operating Temperature: –5 °C to +45 °C
- Protection Rating: IP20
- Installation: Wall-mounted or Floor-standing
Display Functions
The LCD display provides:
- Input Voltage
- Output Voltage
- Load Power
- Protection and Fault Status Indications

Warranty
Warranty Period: 3 Years
In addition to high quality, our company offers interesting terms of cooperation. If you wish to develop your business together with us send your contact to us. We will contact you. In addition, on the page cooperation you can get information about the principles of cooperation with our company. Open and mutual understanding are the basis of a successful joint business.
