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header-product Qoltec Three-Phase Voltage Stabilizer AVR MULTIPROTECTION 40kVA Servo Motor LCD Expert Line
1,492.99 €
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AiO.lv Other goods QOLTEC

Qoltec Three-Phase Voltage Stabilizer AVR MULTIPROTECTION 40kVA Servo Motor LCD Expert Line

Qoltec AVR MULTIPROTECTION 40kVA Voltage Stabilizer Photo 1
Qoltec AVR MULTIPROTECTION 40kVA Voltage Stabilizer Photo 1
Qoltec Three-Phase Voltage Stabilizer AVR MULTIPROTECTION 40kVA Servo Motor LCD Expert Line

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Short description

Qoltec three-phase voltage stabilizer AVR MULTIPROTECTION with 40kVA capacity and ±3% accuracy. Features a 3F servo motor and an LCD display for precise real-time monitoring. Designed for expert line applications, it protects sensitive industrial and commercial equipment from power fluctuations, ensuring stable and reliable electrical performance.
Available for order: 3 pcs.
Warranty: 2 Years
SKU: 12649780
Manufacturer: QOLTEC
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to the Customer Service Center at Kengaraga 2b, Riga
22.09.2026 {{selectedOffer.officeDeliveryString}}
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2b. Kengaraga str., Riga, Latvia, LV-1063
22.09.2026 {{selectedOffer.officeDeliveryString}}
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25.09.2026 {{selectedOffer.courierDeliveryString}}
From 53.99 € (Weight: 160.00 kg)
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36 months installment: from 41.47 euros per month
Leasing for legal entities: from 51.96 euros per month
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Product information

Description

The Qoltec Three-Phase Voltage Stabilizer AVR MULTIPROTECTION 40kVA Servo Motor LCD Expert Line is an advanced power regulation device engineered to protect sensitive industrial and commercial electrical systems. Utilizing a reliable three-phase servo motor and delivering a high capacity of 40kVA with an accuracy of ±3%, this stabilizer actively corrects voltage fluctuations to provide a steady and consistent power supply.

Equipped with an intuitive LCD display, the unit allows users to monitor operational parameters in real time. As part of the Expert Line series, it is built to meet the demanding power conditioning needs of professional environments where voltage instability can disrupt critical operations or damage valuable machinery.

Advantages

This voltage stabilizer offers exceptional performance through its robust 40kVA capacity, making it capable of supporting heavy-duty electrical installations. The integrated 3F servo motor ensures smooth and continuous voltage correction, while the ±3% output accuracy guarantees precise power delivery to sensitive connected devices. The built-in LCD display provides clear, real-time visibility of input and output parameters, enabling efficient system monitoring. Designed for expert applications, the unit delivers comprehensive multiprotection features to safeguard equipment against electrical irregularities.

Suitable for

  • Protecting sensitive industrial machinery from voltage drops and surges
  • Stabilizing power in commercial facilities and offices
  • Supporting large-scale three-phase electrical systems
  • Ensuring continuous and reliable operation of critical technical equipment

This stabilizer may not be suitable for residential use involving standard household appliances, as its large capacity and three-phase design are specifically engineered for heavy commercial and industrial power requirements. It is also not designed to function as an uninterruptible power supply during total power outages.

Key specifications

  • Capacity: 40kVA
  • Phase configuration: Three-phase (3F)
  • Technology: Servo motor
  • Voltage accuracy: ±3%
  • Display type: LCD
  • Product line: Expert Line

Installation and operation should be performed by qualified personnel in accordance with electrical safety guidelines. Ensure that the total load of the connected equipment does not exceed the 40kVA capacity of the stabilizer. Connect the unit to a compatible three-phase power source and securely attach the output lines to the protected devices before powering on the system. Monitor the LCD screen during initial startup to verify correct voltage regulation.

What to consider before purchase

  • Verify that your facility has a three-phase electrical supply compatible with the unit
  • Assess the total power consumption of your equipment to ensure it aligns with the 40kVA capacity
  • Confirm space requirements for proper installation and ventilation in an industrial or commercial setting
Regularly inspect the electrical connections and monitor the LCD display to ensure optimal performance and longevity of the voltage stabilizer within your facility.

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Product comparison

In this overview, the main product Qoltec Three-Phase Voltage Stabilizer AVR MULTIPROTECTION 40kVA Servo Motor LCD Expert Line is compared with similar three-phase voltage stabilizers from Qoltec and Volt brands across various capacities. All these devices are designed to protect sensitive industrial and commercial equipment from power fluctuations by utilizing servo motor technology for precise voltage regulation. The main differences between the models lie in their total capacity, which defines the maximum load for connected systems, as well as the positioning of each product line.

⚙️ Below is a comparison of technical characteristics and capabilities, including stabilization type, regulation accuracy, capacity, and the presence of display monitors.

ParameterQoltec 40kVA Expert LineQoltec 15kVA Expert LineQoltec 10kVA Expert LineQoltec 30kVA Expert LineQoltec 20kVA Expert LineVolt AVR PRO 25000VAPractical significance
Device typeThree-phase voltage stabilizerThree-phase voltage stabilizerThree-phase voltage stabilizerThree-phase voltage stabilizerThree-phase voltage stabilizerThree-phase voltage stabilizerAll devices share the common purpose of providing stable power supply to three-phase consumers.
Regulation technologyServo motor 3FServo motor 3FServo motorServo motor 3FServo motorServo motorServo motor technology ensures smooth and precise voltage regulation across all compared models.
Stabilization accuracy±3%±3%±3%±3%±3%Standard for classHigh accuracy of ±3% in the Qoltec line guarantees stable power for particularly sensitive hardware.
Capacity40 kVA15 kVA10 kVA30 kVA20 kVA25 kVAThe difference in capacity determines the maximum total industrial or commercial load the system can safely support.
MonitoringLCD displayLCD displayLCD displayLCD displayLCD displayIndicationIntuitive displays allow real-time monitoring of grid operating parameters.

◎ The following table evaluates how well different models match specific usage scenarios and buyer needs.

Use caseRecommended productWhy
Large industrial facilities with heavy three-phase equipment and high total power demandQoltec Three-Phase Voltage Stabilizer AVR MULTIPROTECTION 40kVA Servo Motor LCD Expert LineThe highest capacity in the line (40 kVA) allows connection of energy-intensive production complexes and powerful commercial installations.
Medium production lines or commercial buildings with moderate loadQoltec Three-phase AVR voltage stabilizer Multiprotection 30kVA 3% accuracy servo motor LCD Expert Line or Volt AVR PRO 25000VAProvide an optimal power balance for medium-scale facilities without paying for excess capacity.
Small commercial premises, offices, or residential buildings with limited device countsQoltec 15kVA, Qoltec 20kVA or Qoltec 10kVAMore compact capacity options are suitable for protecting targeted groups of sensitive equipment.

The main product Qoltec Three-Phase Voltage Stabilizer AVR MULTIPROTECTION 40kVA Servo Motor LCD Expert Line differs from alternatives by offering a maximum capacity of 40 kVA while maintaining high regulation accuracy of ±3% and advanced servo motor protection. It is most suitable for large industrial and commercial facilities with stringent power stability requirements. You should choose this model if the total load of your connected equipment exceeds the capabilities of lower-capacity alternatives.

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Customer questions

FAQ

How much does the Qoltec AVR MULTIPROTECTION 40kVA Voltage Stabilizer cost, and is it available for purchase?

The price is 1,492.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 AVR MULTIPROTECTION 40kVA Voltage Stabilizer 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 AVR MULTIPROTECTION 40kVA Voltage Stabilizer 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.
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