# Power inverter KEMOT PROsinus-500 500VA 300W 12V to 230V pure sine

**URL:** https://aio.lv/en/product--kemot-urz3404--4190279
**Data updated:** 2025-12-29 15:45 (EET)
**Category:** Power Inverters
**Manufacturer:** KEMOT
**Manufacturer code:** URZ3404
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 103.95 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 85.91 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kemot-urz3404--4190279

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Friday | free |
| Pickup points | 08.07.2026 | 1.89 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

KEMOT PROsinus-500 is a 500VA (300W continuous) power inverter that converts 12V DC to 230V AC with a pure sine output. Designed for powering sensitive electronics, small appliances and charging devices from a vehicle or battery bank. Features include stable sine waveform, overload protection and portability for mobile, RV or backup use.

## Long description

KEMOT PROsinus-500 is a compact power inverter that converts 12V DC to 230V AC with a pure sine output, rated 500VA (300W continuous). It is suitable for powering sensitive electronics, small appliances and equipment such as heating boiler feed pumps and fans during supply voltage failures when paired with an appropriate 12V battery (Pb 12V 18–100Ah). Reserve runtime depends on the battery capacity used.
Advantages
The inverter provides a stable pure sine waveform suitable for motors, pumps and sensitive electronics. It supports continuous output of 300W with 500VA peak capacity, includes overload protection and is designed for portable or backup use with vehicle or stationary battery banks. Compatible with lead-acid (Pb) 12V batteries in the 18–100Ah range to match desired runtime.
Suitable for
Powering heating boiler feed pumps and fans during mains failure
Running small household appliances and chargers from a 12V battery
Mobile and RV power supply for sensitive electronics
Key specifications
Model: KEMOT PROsinus-500 (MPN: URZ3404)
Input: 12V DC
Output: 230V AC pure sine
Rated: 500VA (300W continuous)
Battery compatibility: Pb 12V 18–100Ah
How to use
Connect the inverter to a 12V battery or vehicle electrical system following the manufacturer’s polarity markings. Plug the AC device into the inverter’s 230V outlet. Monitor load to ensure the connected devices do not exceed the 300W continuous rating. Determine required backup time based on the battery capacity (18–100Ah) and the actual power draw of the loads.
Usage recommendations
Use an appropriately sized lead-acid 12V battery (18–100Ah) to achieve the desired reserve time; ensure cables and connections are rated for the inverter’s current and observe battery charging and maintenance guidelines. Do not exceed the continuous 300W rating and allow ventilation during operation.

## FAQ

### How much does the Power inverter KEMOT PROsinus-500 500VA 300W cost, and is it available for purchase?

The price is 103.95 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 Friday 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 Power inverter KEMOT PROsinus-500 500VA 300W 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

## Image

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