# Uninterruptible Power Supply UPS Qoltec 52281 2 kVA 2000 W 3 AC outlets

**URL:** https://aio.lv/en/product--qoltec-52281--10865892
**Data updated:** 2025-12-30 12:48 (EET)
**Category:** UPS
**Manufacturer:** QOLTEC
**Manufacturer code:** 52281
**EAN:** 5901878522814
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 324.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 268.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qoltec-52281--10865892

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.06.2026 | free |
| Pickup points | 02.07.2026 | 1.99 EUR |
| Courier delivery to door | 02.07.2026 | 14.16 EUR |

## Summary description

The Qoltec 52281 is a double-conversion online UPS with a capacity of 2 kVA and 2000 W. It features 3 Type F AC outlets and a USB Type-B port. The 9 Ah battery at 48 V and 5 A charging current ensure reliable power supply. Its compact design and passive cooling make it suitable for various environments.

## Long description

Qoltec 52281 is a double-conversion on-line UPS with 2 kVA (2000 W) output power and a power factor of 1.0. Designed to provide stable, clean pure sine wave power with zero switching time, this UPS protects sensitive equipment from mains disturbances such as outages, voltage drops and surges. The unit includes an integrated LCD for monitoring, an EPO interface, USB Type-B communication and three Type F AC outlets. It ships with a built-in set of 4 x 9 Ah batteries and supports SNMP module installation for network management. The device is supplied with a 24-month warranty.
Advantages
The Qoltec 2 kVA on-line UPS delivers continuous double-conversion power that keeps output voltage and frequency constant, ensuring full isolation from input disturbances. With a power factor of 1.0 and pure sine wave output, the UPS maximises usable power and maintains high power quality for sensitive IT equipment. Key features include zero transfer time to battery, overload/short-circuit/overheat protection, ECO mode to improve efficiency, built-in service bypass for maintenance, and active cooling via two fans. The unit also provides extended back-up time and supports remote emergency shutdown via the EPO interface.
Suitable for
Small server rooms and rack-mounted IT equipment
Network devices and switches requiring clean power and monitoring
Workstations and storage devices that need uninterrupted power during outages
Key specifications
Model: Qoltec 52281
Output power: 2000 W (2 kVA)
Power factor: 1.0
AC outlets: 3 × Type F
Battery: 4 × 9 Ah (built-in), 48 V system
Charging current: 5 A
Communication: USB Type-B, RS-232 (cable included), SNMP module slot
Display: integrated LCD
Interfaces: EPO, service bypass
Cooling: 2 fans
Weight: 17.1 kg
Colour: Black
Warranty: 24 months
How to use
Install the UPS in a well-ventilated location and connect the mains supply before powering connected equipment. Use the integrated LCD to monitor operational status and battery charge. For normal operation leave the UPS connected to mains so the batteries remain charged; in case of mains failure the unit automatically switches to battery with zero transfer time. For network monitoring or remote control, install an SNMP module in the available slot and connect via the USB or RS-232 port as required. Use the built-in service bypass when performing maintenance to avoid interruption to connected loads.
Usage recommendations
Place the UPS on a stable, level surface with adequate clearance for airflow. Periodically check the LCD for warnings, and test the battery backup under load after installation. Replace batteries according to the manufacturer’s guidance or when backup time noticeably decreases. Do not expose the unit to moisture, excessive dust or temperatures outside the recommended operating range.

## Specifications

### Ports & interfaces

| Feature | Value |
|---|---|
| AC outlets quantity | 3 AC outlet(s) |
| USB 2.0 ports quantity | 1 |
| Serial interface type | RJ-45, RS-232 |
| Ethernet LAN (RJ-45) ports | 2 |
| RS-232 ports | 1 |
| AC outlet types | Type F |
| Serial interface | Yes |
| USB port | Yes |
| USB port type | USB Type-B |

### Battery

| Feature | Value |
|---|---|
| Number of batteries supported | 4 |
| Battery voltage | 48 V |
| Battery capacity | 9 Ah |
| Charging current | 5 A |

### Design

| Feature | Value |
|---|---|
| Product colour | Black |
| Form factor | Compact |
| LED indicators | Y |
| Control type | Buttons |
| Cooling type | Passive |
| Display type | LCD |
| Built-in fan | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 17.1 kg |
| Height | 225 mm |
| Width | 141 mm |
| Depth | 395 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 20 - 95 |
| Storage temperature (T-T) | -15 - 60 |
| Operating temperature (T-T) | 0 - 40 |

### Features

| Feature | Value |
|---|---|
| Output power capacity | 2 kVA |
| Noise level | 50 dB |
| Output power | 2000 W |
| Power protection features | Over voltage, Short circuit, Overload |
| Input operation voltage (max) | 300 V |
| Input operation voltage (min) | 110 V |
| Output operation voltage (min) | 220 V |
| Output operation voltage (max) | 240 V |
| Output frequency | 50/60 |
| Waveform | Pure sine |
| Output voltage regulation | 5 |
| Output frequency regulation | 0.05 |
| UPS topology | Double-conversion (Online) |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 18100 g |
| Package depth | 475 mm |
| Package height | 330 mm |
| Package width | 235 mm |

## FAQ

### How much does the Uninterruptible Power Supply UPS Qoltec 52281 cost, and is it available for purchase?

The price is 324.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 42 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 29.06.2026 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. All transactions are 100% secure and encrypted.

### Can Uninterruptible Power Supply UPS Qoltec 52281 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: ac outlets quantity, usb 2.0 ports quantity, weight, output power capacity, output power, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/10865892/65773325_large.webp