Voltage Stabilizer STAB 0.4kW — Overview and Key Advantages
The «STAB» voltage stabilizer from the manufacturer Promavtomatika Vinnytsia — a reliable device for protecting autonomous heating control systems and other low-power equipment. The device is designed to stabilize voltage in single-phase networks and provides a clean 220V output with a maximum power of 0.4kW. The design features a floor-standing (vertical) configuration in a compact black casing, allowing for easy integration into technical rooms and utility cabinets.
The front panel is equipped with a digital indicator and a set of LEDs that display current parameters. The mode selection button changes the information on the display cyclically in one direction: Input voltage → Output voltage → Consumed power. Thanks to the triac-thyristor stabilization circuit and 16 switching steps, fast and accurate correction of network changes is ensured.
Safety and Preparation for Operation
Before connecting, ensure that the power cable has no external damage and that the outlet has reliable grounding. It is forbidden to connect the device to an ungrounded outlet. To start, connect the load to the outlet on the rear panel of the casing — after a delay of about 5 seconds, if no faults are detected and the mains voltage is normal, the stabilizer will supply power to the load. LEDs indicate which parameter is displayed on the indicator.
Package Contents
Package Contents: Stabilizer, passport, box.
Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Promavtomatika Vinnytsia |
| Model | STAB 0.4kW |
| Stabilization Type | Triac-Thyristor |
| Power, kW | 0.4kW |
| Output Voltage, V | 220V |
| Voltage, V | 220V |
| Input Voltage U in min | 220V |
| Input Voltage U in max | 270V |
| Input Voltage Range, V | 150-270 |
| Frequency, Hz | 48-52Hz |
| Number of Phases | 1 |
| Phase Type | Single-phase |
| Switching Steps | 16 |
| Transition Time Between Stabilization Steps, msec | 20 |
| Voltage Response Time, msec | 20 |
| Output Voltage Fluctuation | 3% |
| Indicator Type | Digital |
| Outlets Present | No |
| Mounting | Floor-standing / Vertical |
| Dimensions | 230x177x65 mm |
| Weight, kg | 2.7 kg |
| Color | Black |
| Dust and Moisture Protection Rating | IP20 |
| "Bypass" Function | No |
| Warranty | 5 years |
| Country of Manufacture | Ukraine |
This stabilizer is optimal for protecting boilers, heating automation systems, household and office equipment where precise output voltage maintenance and quick response to network fluctuations are crucial. The triac-thyristor topology ensures reliable operation during frequent voltage fluctuations, and the digital indicator facilitates real-time mode monitoring.
Other important points: before connecting, ensure grounding is present; during operation, pay attention to the status indication displayed. With proper installation and adherence to safety requirements, the stabilizer will ensure long-term and trouble-free operation of connected equipment.
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