# Uninterruptible Power Supply KEMOT SINUS 800VA 500W (LEC-URZ3405B) for home and small office

**URL:** https://aio.lv/en/product--kemot-lec-urz3405b--5015835
**Data updated:** 2026-06-02 20:06 (EEST)
**Category:** UPS
**Manufacturer:** KEMOT
**Manufacturer code:** LEC-URZ3405B
**EAN:** 5901890025348
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 97.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 80.57 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kemot-lec-urz3405b--5015835

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.89 EUR |
| Courier delivery to door | 09.07.2026 | 5.09 EUR |

## Summary description

KEMOT SINUS 800VA 500W uninterruptible power supply (model LEC-URZ3405B) provides battery-backed AC power to protect electronics during outages and voltage disturbances. Rated 800VA/500W, it delivers pure sine output suitable for sensitive equipment, supports safe shutdown of PCs and network devices, and is designed for home and small office use where short-term backup and power conditioning are required.

## Long description

The KEMOT SINUS 800VA 500W uninterruptible power supply is a reliable solution designed to protect sensitive electronic equipment from power outages, voltage fluctuations, and surges. By providing a pure sine wave output, this device ensures that connected electronics operate smoothly and safely during power instability, making it an essential component for maintaining productivity and hardware longevity in home and small office environments.
Advantages
This uninterruptible power supply offers a stable power backup that prevents data loss and hardware damage caused by sudden electrical interruptions. The pure sine wave technology is particularly beneficial for sensitive devices that require high-quality power, such as computers, network equipment, and home entertainment systems. Its compact design and efficient operation make it a practical choice for users who need dependable protection without occupying excessive space.
Suitable for
Desktop computers and workstations
Network routers and modems
Small office communication equipment
Home entertainment systems
Sensitive electronic control devices
When it may not be suitable
This device is not intended for high-power appliances such as refrigerators, heaters, or heavy-duty power tools that exceed its 500W capacity. It is also not designed for long-term off-grid power supply, as it is intended for short-term backup during outages.
Key specifications
Power capacity: 800VA / 500W
Output waveform: Pure sine wave
Weight: 5 kg
Application: Home and small office
How to use
To use the device, connect it to a grounded wall outlet and allow the internal battery to charge fully before first use. Connect your electronic devices to the output sockets located on the rear panel. Once connected, turn on the unit using the power button. The device will automatically switch to battery power if the main electricity supply is interrupted, providing a seamless transition for your connected equipment.
What to consider before purchase
Ensure the total power consumption of your connected devices does not exceed 500W.
Verify that the device is placed in a well-ventilated area to prevent overheating.
Check the compatibility of your equipment with pure sine wave output.
Usage recommendations
Regularly test the battery backup functionality by briefly disconnecting the unit from the wall power to ensure it is ready for real-world power failures. Keep the device away from moisture and extreme temperatures to maintain optimal battery health.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 5 kg |

## FAQ

### How much does the KEMOT SINUS 800VA 500W UPS LEC-URZ3405B cost, and is it available for purchase?

The price is 97.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 74 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 06.07.2026 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 KEMOT SINUS 800VA 500W UPS LEC-URZ3405B 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 KEMOT 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 KEMOT 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: weight, 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/5015835/65889556_large.webp