# Engine Generator Könner & Söhnen KS 4000IEG S 3500 W 12 L LPG Petrol

**URL:** https://aio.lv/en/product--konner-sohnen-ks4000iegs--6677877
**Data updated:** 2026-03-17 20:26 (EET)
**Category:** Electric Generators
**Manufacturer:** könner & söhnen
**Manufacturer code:** KS4000iEGS
**EAN:** 4260405364756
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 093.49 €
**Prices and availability valid until:** 2026-08-23 23:59
**Price without VAT (21%):** 903.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--konner-sohnen-ks4000iegs--6677877

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.08.2026 | free |
| Courier delivery to door | 13.08.2026 | 53.99 EUR |

## Summary description

The Könner & Söhnen KS 4000IEG S engine generator offers a rated power of 3500 W and a fuel tank capacity of 12 L. It operates on liquefied petroleum gas (LPG) and petrol, making it versatile for various applications. With a compact design and a weight of 40 kg, it is suitable for both home and outdoor use.

## Long description

The Könner & Söhnen KS 4000IEG S inverter engine generator provides a rated output of 3500 W and a 12 L fuel tank, operating on both petrol and liquefied petroleum gas (LPG). Designed for compact portability at 40 kg, this model delivers a pure sine wave 230 V / 50 Hz output suitable for sensitive electronics. The unit features a microprocessor-controlled inverter, a brushless alternator with 100% copper winding, an ergonomic control panel with LED display and multiple output ports, and a 3-in-1 engine start that integrates fuel valve, choke and electric start. The generator supports Economy mode for reduced fuel consumption and can be connected in parallel with a compatible unit to increase total output.
Advantages
The KS 4000IEG S produces a stable pure sine wave output which protects sensitive devices and ensures reliable operation of household and professional equipment. Dual-fuel capability (petrol and LPG) adds flexibility and can lower operating costs when LPG is available. The brushless alternator with copper winding and a EURO V–compliant engine provide durable, long-term performance. Economy mode reduces fuel consumption at low loads, while a low-noise protective housing keeps operating sound near 66 dB. An ergonomic control panel with LED display, USB ports and a 12 V socket simplifies monitoring and connection of multiple devices.
Suitable for
Powering home appliances during outages (fridge, lights, communication equipment)
Outdoor activities and camping where a stable AC source is required
Construction sites and workshops for tools and cordless charger stations
Mobile or remote installations that benefit from LPG or petrol fuel options
Parallel operation to increase available power for larger loads
Key specifications
Rated output: 3500 W
Output waveform: pure sine wave, 230 V / 50 Hz
Fuel type: petrol and LPG (propane-butane)
Fuel tank capacity: 12 L
Noise level: approximately 66 dB at rated conditions
Engine features: EURO V–compliant, Economy mode for reduced consumption
Alternator: brushless design with 100% copper winding
Control panel: LED display, two USB ports (5 V/1 A and 5 V/2.1 A), 12 V socket, Economy mode switch, status indicators
Start system: 3-in-1 (fuel valve, choke, electric start)
Mobility: two wheels and folding handle for transport
Parallel connection: compatible with parallel unit for increased combined output
How to use
Before first use, check oil and fuel levels and read the user manual for safety instructions. To run on petrol, fill the petrol tank and set the 3-in-1 switch to the petrol position; then use the electric start or recoil as provided. To run on LPG, connect the supplied hose and pressure reducer to a certified LPG cylinder following local regulations, set the switch to gas, and start the engine. Use the LED display to monitor operating parameters and the Economy mode switch to reduce fuel consumption at low loads. For parallel operation, make sure both generators are compatible and the parallel unit is fitted according to the manufacturer’s instructions.
Usage recommendations
Operate the generator outdoors or in well-ventilated areas only, keeping exhaust fumes away from occupied spaces. Have LPG connections installed or inspected by a certified specialist and ensure supply pressure does not exceed 16 bar. Use Economy mode when powering light loads to extend runtime. Perform regular maintenance: check oil, air filter, spark plug and connections according to the service schedule, and store the generator dry and protected when not in use.

## Specifications

| Feature | Value |
|---|---|
| Weight | 40 kg |
| Package weight | 46000 g |
| Height | 510 mm |
| Width | 440 mm |
| Depth | 620 mm |
| Product colour | Black, Aqua colour |
| Noise level | 66 dB |
| AC outlets quantity | 2 AC outlet(s) |
| Inverter technology | Yes |
| Castor wheels | Yes |
| Rated current | 17.4 A |
| Package depth | 630 mm |
| Package height | 570 mm |
| Package width | 475 mm |
| Maximum power | 4000 W |
| Rated power | 3500 W |
| Fuel type | Petrol, Liquefied Petroleum Gas (LPG) |
| International Protection (IP) code | IP23 |
| Carrying handle(s) | Yes |
| Fuel tank capacity | 12 L |
| Waveform | Pure sine |
| Ignition system | Manual |
| Number of outlets | 2 |
| Rated voltage | 230 V |
| Rated frequency | 50 Hz |
| Engine displacement | 223 cm³ |
| Engine power | 7.5 hp |

## FAQ

### How much does the Engine Generator Könner & Söhnen KS 4000IEG S cost, and is it available for purchase?

The price is 1,093.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 10.08.2026 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 Engine Generator Könner & Söhnen KS 4000IEG S 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 könner & söhnen 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 könner & söhnen 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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