# Qoltec 3-Phase On-line Low Frequency UPS 20kVA 16kW with LCD, EPO, SNMP, and USB

**URL:** https://aio.lv/en/product--qoltec-53985--12729924
**Data updated:** 2026-10-16 04:33 (EEST)
**Category:** UPS
**Manufacturer:** QOLTEC
**Manufacturer code:** 53985
**EAN:** 5901878539850
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3 037.49 €
**Prices and availability valid until:** 2026-12-03 23:59
**Price without VAT (21%):** 2 510.32 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qoltec-53985--12729924

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 11.11.2026 | free |
| Courier delivery to door | 16.11.2026 | 53.99 EUR |

## Summary description

Qoltec 3-phase on-line low frequency uninterruptible power supply with a 20kVA and 16kW capacity. Designed to provide reliable power backup and protection for critical equipment. Features an informative LCD screen, emergency power off (EPO), SNMP slot, and USB connectivity for remote monitoring and management.

## Long description

The Qoltec 3-Phase On-line Low Frequency UPS 20kVA 16kW is an advanced uninterruptible power supply engineered to deliver continuous, high-capacity power protection for critical industrial, commercial, and IT infrastructure. Utilizing on-line double conversion technology with low-frequency architecture, this system isolates connected devices from all mains power irregularities, ensuring a pure sine wave output and zero transfer time during power failures. Equipped with an informative LCD screen for real-time operational status monitoring, emergency power off (EPO) functionality for enhanced safety, an SNMP slot for network management, and USB connectivity, this UPS offers comprehensive control and adaptability in demanding environments.
Advantages
This 3-phase on-line UPS provides robust power backup with a generous capacity of 20kVA and 16kW, making it highly capable of supporting heavy loads. The low-frequency design ensures exceptional durability, resilience against harsh electrical conditions, and long-term operational reliability. Double conversion technology constantly regenerates the power output to eliminate voltage fluctuations, surges, and harmonic distortions. Advanced management options, including remote monitoring via SNMP and USB interfaces alongside an intuitive LCD panel, allow administrators to track performance metrics and system status efficiently. Furthermore, the emergency power off feature ensures immediate shutdown capabilities during critical incidents to protect personnel and hardware.
Suitable for
Protecting corporate server rooms and data center infrastructure
Safeguarding industrial automation and manufacturing machinery
Ensuring continuous operation of telecommunications equipment
Backing up medical devices and critical laboratory instrumentation
Securing commercial building management and security systems
When it may not be suitable
This heavy-duty low frequency UPS is generally not suitable for standard residential use, small office environments, or basic desktop computer setups due to its physical size, electrical requirements, and high capacity. It is designed specifically for enterprise and industrial applications requiring three-phase power.
Key specifications
Power capacity: 20kVA / 16kW
Topology: 3-phase on-line double conversion, low frequency
Output waveform: Pure sine wave
Interfaces and management: LCD display, USB connectivity, SNMP slot, EPO (Emergency Power Off)
How to use
Installation and setup of the Qoltec 3-phase on-line UPS should be performed by qualified electrical professionals in accordance with local electrical codes and manufacturer guidelines. Connect the unit to an appropriate three-phase mains power source and securely attach the critical load equipment to the designated output terminals. Configure network monitoring settings using the USB connection or an optional SNMP card to enable remote status tracking and alerts. Perform initial system checks via the LCD control panel to verify operating parameters, battery status, and load levels before putting the system into full operational service.
What to consider before purchase
Verify that your facility has adequate three-phase electrical infrastructure to support the unit
Assess the total power consumption of your connected devices to ensure it remains within the 16kW limit
Measure the physical installation space and account for the weight and ventilation requirements of a low-frequency UPS system
Determine if additional accessories, such as SNMP cards or external battery cabinets, are required for your specific operational needs
Regularly monitor system metrics through the LCD display and remote management interfaces, schedule routine professional maintenance inspections, and test the emergency power off functionality periodically to ensure maximum reliability and extended service life of the UPS unit.

## FAQ

### How much does the Qoltec 3-Phase UPS 20kVA 16kW On-line cost, and is it available for purchase?

The price is 3,037.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 11.11.2026 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 3-Phase UPS 20kVA 16kW On-line be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12729924/70595787_large.webp