{{ totalProductsCount }}

In cart {{totalProductsCount}} item(s)

Total:
{{sum | formatAmount}}

Your cart is empty

header-product Qoltec 20kVA Three-Phase AVR Voltage Stabilizer Multiprotection Expert Line with Servomotor and LCD Screen
1,064.49 €

Qoltec 20kVA Three-Phase AVR Voltage Stabilizer Multiprotection Expert Line with Servomotor and LCD Screen

Qoltec 20kVA Three-Phase Voltage Stabilizer AVR Photo 1

New arrival!

Keep track of price changes You keep track of price changes
Watch the price drop

Leave your address - as soon as the price of the product goes down, you'll know about it right away

You keep track of price changes

Qoltec 20kVA Three-Phase AVR Voltage Stabilizer Multiprotection Expert Line with Servomotor and LCD Screen

{{email}}
You keep track of price changes

Qoltec 20kVA Three-Phase AVR Voltage Stabilizer Multiprotection Expert Line with Servomotor and LCD Screen

{{email}}
{{selectedOffer && selectedOffer.price | formatAmount}}

Short description

Protect your sensitive electrical equipment from voltage fluctuations with the Qoltec 20kVA three-phase AVR voltage stabilizer. Featuring reliable servomotor technology, a high accuracy of ± 3%, and a clear LCD screen, this Expert Line device ensures stable power supply for industrial, commercial, and residential applications. Designed for continuous monitoring and safety, it prevents power surges and equipment damage effectively.
Available at price 1,064.49 €: 4 pcs.
Total available for order: 5 pcs.
Warranty: 2 Years
SKU: 12649779
Manufacturer: QOLTEC
delivery
to the Customer Service Center at Kengaraga 2b, Riga
22.09.2026 {{selectedOffer.officeDeliveryString}}
free
Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
22.09.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
25.09.2026 {{selectedOffer.courierDeliveryString}}
From 53.99 € (Weight: 100.00 kg)
0 credit

pay in 3 equal parts

today

0 €

afterward

3 mth. х 354.83 €

overpayment

0 €

All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities
36 months installment: from 29.57 euros per month
Leasing for legal entities: from 37.04 euros per month
Together cheaper
{{product.price | formatAmount}}
{{product.title}}
{{productBundle.reference.specialPrice | formatAmount}}
{{productBundle.title}}
{{productBundlePreviousPrice | formatAmount}}
{{productBundleSpecialPrice | formatAmount}}

You saving {{productBundleYouSave | formatAmount}}

Product information

Description

The Qoltec 20kVA Three-Phase AVR Voltage Stabilizer Multiprotection Expert Line with Servomotor and LCD Screen is designed to protect sensitive electrical equipment from voltage fluctuations. By utilizing reliable servomotor technology, this three-phase voltage stabilizer maintains a high output accuracy of plus or minus 3 percent, ensuring a steady and reliable power supply for demanding electrical environments. Equipped with a clear LCD screen, the device allows for continuous monitoring of operating parameters, making it a dependable choice for maintaining equipment safety and longevity.

Advantages

This three-phase AVR stabilizer offers comprehensive protection against power surges, voltage drops, and electrical irregularities that can compromise connected devices. The integrated servomotor provides smooth and precise voltage regulation across all three phases, reducing the risk of unexpected shutdowns or component degradation. Built for performance within the Expert Line series, it combines advanced safety features with robust construction, delivering consistent power conditioning for continuous operation in various settings.

Suitable for

  • Industrial machinery and automated production lines requiring stable three-phase power
  • Commercial office buildings and retail spaces with sensitive electronic equipment
  • Residential properties with unstable grid voltage feeding multiple heavy-duty appliances
  • Telecommunications infrastructure and server rooms needing reliable voltage regulation

When it may not be suitable

This device may not be appropriate for single-phase electrical systems or applications requiring a capacity significantly lower or higher than 20kVA. Additionally, environments with extreme physical hazards or outdoor locations without adequate weather protection are not suitable for this indoor-rated unit.

Key specifications

  • Capacity: 20kVA
  • Phase type: Three-phase
  • Technology: Servomotor
  • Output voltage accuracy: plus or minus 3 percent
  • Display type: LCD screen
  • Product line: Expert Line

How to use

Installation and connection of the voltage stabilizer should be performed by a qualified electrician in accordance with local electrical codes and safety regulations. Ensure that the total power consumption of the connected appliances does not exceed the 20kVA capacity of the unit. Mount the device in a dry, well-ventilated area free from excessive dust and moisture. Once properly wired to the main power supply and the load, power on the unit to allow the automatic regulation system to begin monitoring and stabilizing the incoming voltage.

What to consider before purchase

  • Verify that your electrical system is three-phase and compatible with a 20kVA capacity
  • Calculate the total wattage and surge requirements of your connected equipment
  • Ensure adequate physical space and ventilation at the installation site
  • Confirm that installation by a certified professional is arranged
Usage recommendations: Regularly check the LCD screen to monitor operating status and ensure that the ventilation openings remain unobstructed to prevent overheating during continuous operation.

Description

Machine translation. Load original

Similar products

{{product.title}}
Show details Hide details

{{highlightedFeature.featureTitle}}:

{{getProductFeatureValueById(product, highlightedFeature.featureId)}}

{{product.price | formatAmount}}

Product comparison

In this comparison, the Qoltec 20kVA Three-Phase AVR Voltage Stabilizer Multiprotection Expert Line with Servomotor and LCD Screen is evaluated against similar three-phase voltage stabilizers from Qoltec and Volt with varying power capacities. All compared devices share the fundamental purpose of protecting sensitive electrical equipment from voltage fluctuations using reliable servomotor technology and high regulation accuracy, with practical differences stemming primarily from capacity limits and operational scale.

⚙️ The specifications comparison reviews the stabilization technology, regulation accuracy, control mechanism, power capacity, and practical application for each model.

ParameterQoltec 20kVAQoltec 10kVAQoltec 30kVAQoltec 40kVAQoltec 15kVAVolt AVR PRO 25000VAPractical significance
Device typeThree-phase AVR voltage stabilizerThree-phase AVR voltage stabilizerThree-phase AVR voltage stabilizerThree-phase AVR voltage stabilizerThree-phase AVR voltage stabilizerThree-phase servo voltage stabilizerAll options are built for three-phase electrical systems but differ in scale and capacity.
TechnologyServomotorServomotorServomotorServomotorServomotorServomotorThe shared servomotor system provides smooth and precise voltage regulation across all products.
Accuracy±3%±3%±3%±3%±3%High precisionPrecise voltage regulation ensures stable power delivery for sensitive equipment.
Capacity20 kVA10 kVA30 kVA40 kVA15 kVA25 kVACapacity ratings determine the maximum total electrical load each stabilizer can support.
DisplayLCD screenLCD screenLCD screenLCD screenLCD screenNot specifiedThe built-in LCD screen on Qoltec models facilitates real-time system monitoring.

◎ The suitability and use cases evaluation helps determine which product aligns best with specific operational requirements and buyer needs.

Use caseRecommended productWhy
Medium-scale industrial and commercial setups requiring balanced powerQoltec 20kVAProvides an optimal capacity level for demanding setups that exceed the limits of 10kVA or 15kVA options.
Smaller three-phase systems and applications with lower load requirementsQoltec 10kVA or Qoltec 15kVAIdeal for installations where overall power consumption demands are more modest.
Heavy-duty industrial facilities and large commercial machineryQoltec 30kVA, Qoltec 40kVA or Volt AVR PRO 25000VABest suited for high-capacity power stabilization requirements involving heavy machinery.
The Qoltec 20kVA Three-Phase AVR Voltage Stabilizer Multiprotection Expert Line with Servomotor and LCD Screen stands out as a balanced mid-capacity solution ideal for medium industrial, commercial, or residential applications requiring reliable power regulation. A buyer should choose this model over lower-capacity alternatives when managing a heavier electrical load, while avoiding the excess capacity of larger 30kVA or 40kVA units.
Might be useful
{{product.manufacturerName}}
{{product.categoryName}}
{{product.title}}
{{product.specialPrice}}
{{product.price}}
Stock data
Warehouse Stock Delivery to the store Store Price
WH323 4 22.09.2026 Best delivery
New
1,064.49 € Best price
WH354 1 28.09.2026
1,390.49 €
New
1,064.49 €
Stock: 4
Delivery Date: 22.09.2026 Best delivery
Warehouse: WH323
1,390.49 €
Stock: 1
Delivery Date: 28.09.2026
Warehouse: WH354

Customer reviews

Customer questions

FAQ

How much does the Qoltec 20kVA Three-Phase Voltage Stabilizer AVR cost, and is it available for purchase?

The price is 1,064.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 22.09.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities. All transactions are 100% secure and encrypted.

Can Qoltec 20kVA Three-Phase Voltage Stabilizer AVR be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Qoltec 20kVA Three-Phase Voltage Stabilizer AVR online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All QOLTEC products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized QOLTEC service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
shipping
Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
payment
Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
warranty
Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.