Digital display showing real-time input and output voltage on SVB series stabiliser

DVB SVB Series Single Phase Auto Voltage Stabilisers

Capacity: 0.5KVA- 12KVA
Phase: single phase
Precision: ±3、10% (Adjustable)
Control type: Relay Type / Servo motor

The DVB (Relay Type) and SVB (Servo Type) series from SUNWAY are designed to suit a wide range of residential, commercial, and light industrial applications.

Protect your valuable electronics from unpredictable power fluctuations with SUNWAY’s DVB & SVB series voltage stabilisers—a smart investment in power security and equipment longevity.

What Is a Voltage Stabiliser?

A voltage stabiliser, also known as an electric stabiliser, is an essential power protection device that automatically regulates voltage levels to deliver a stable output to connected equipment. Whether your area suffers from low voltage, voltage fluctuations, or sudden surges, a stabiliser helps prevent damage to appliances by ensuring a consistent 240V output (or customized value as needed).

Technical Parameters

ModelDVB-3000VADVB-5000VADVB-8000VADVB-10000VADVB-12000VA
SVB-3000VASVB-5000VASVB-8000VASVB-10000VASVB-12000VA
PhaseSingle phase
Input voltageAC 45-260V, 80-260V, 100-260V,  140-260V (or customized)
Output voltageAC 220V or customized
Frequency50Hz/60Hz
Precision±3%, ±10% or customized
Efficiency>95%
Control typeRelay type/Servo motor
Digital displayShow input and output voltage
ProtectionOvertemperature, Overvoltage, Undervoltage, Overload, Time delay
Ambient temperature-10°C~+ 40°C
Relative Humidity<95%
Waveform DistortionNo additional wave form distortion
Insulating ResistanceNormally more than 2MΩ
Insulating ClassClass B
   ProtectionOvervoltageOutput Voltage ≥ 245V ± 4V
Low voltageOutput Voltage ≤ 180V ± 4V
Overtemperature95℃±10℃
Delay timeLong time(180 second) / short time(6 second)
UndervoltageDisabled by default, customizable if needed
Power3000VA5000VA8000VA10000VA12000VA
Size(mm)   L*W*H264*145*375280*170*405300*180*440300*200*450300*200*450
The size and weight vary depending on the voltage range, and are subject to the customized actual product.

Key Advantages of DVB & SVB Voltage Stabilisers

Wide Input Range: Operates efficiently across various voltage ranges (45V–260V, 80V–260V, etc.) to suit regional power conditions.

High Accuracy: Output voltage regulation up to ±3% for servo models and ±10% for relay models.

Two Control Options:

DVB Series: Relay-type for cost-effective, stepped correction.
SVB Series: Servo-type for smooth, real-time voltage regulation.

Smart Protection System: Includes overvoltage, undervoltage, overtemperature, overload, and time-delay protection.

Digital Display: Real-time monitoring of input and output voltage.
High Efficiency: >95%, ensuring minimal energy loss.

Compact Design: Space-saving wall-mount and floor-standing options available.

How to Choose the Right Voltage Stabiliser?

Before purchasing, consider:

Load Capacity: Add up the wattage of all devices to be connected. Add 2–3X extra to select the appropriate VA rating.
Input Voltage Range: Know your area’s power fluctuations and choose the appropriate input range.
Control Type: Servo for high accuracy, relay for cost-efficiency.
Installation: All models can be wall-mounted or floor-standing depending on your space.

Still unsure? Our team is happy to offer model recommendations based on your exact needs.

FAQ

Q1: Can I use these stabilisers with air conditioners or refrigerators?
Yes. Both DVB and SVB models are suitable for home appliances. For inductive loads like air conditioners, choose a model rated 30–50% above the appliance’s power rating.

Q2: What is the difference in precision between relay and servo stabilisers?
Relay models generally offer ±10% accuracy, while servo models provide ±3%, making them better for voltage-sensitive equipment.

Q3: Do these stabilisers require regular maintenance?
Not much. Just keep them clean and ensure proper ventilation. For servo models, occasional checks on the servo motor are recommended.

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