How to make an inverter generator operate as quietly as possible?

Inverter Generator KSB 33i S

Available

€496,95

Specification

Voltage, V:	230
Max power, kW:	3.3
Nominal power, kW:	3.0
Engine start:	Manual
Outlets:	2 × Schuko 230 V

Variants

Max Power: 3.3 kW

Benefits

Inverter technology – ensures stable output voltage of correct sine wave form, suitable for reliable operation of sensitive electronics.
Reliable power source – the ideal choice for home, cottage, camping, or workspace, especially during power outages or in places without access to stationary power supply.
Quiet and stylish casing – modern design with sound insulation reduces noise to a comfortable level — ideal for use in residential areas and in nature.
Compact dimensions – compact size and low weight of K&S Basic inverter generators make them convenient to use, easy to transport and store.
100% copper alternator winding – ensures stable electricity generation, reduces the risk of overheating and extends the service life of the device.

Features

Inverter generator KSB 33i S of the German brand Könner & Söhnen® (3.0–3.3 kW) is a universal power source for home, active recreation, or emergencies. Thanks to microprocessor control, it maintains stable voltage of 230V 50Hz with correct sine wave, safe for sensitive electronics: laptops, TVs, chargers. Equipped with a modern engine that meets EURO 5 standard, brushless alternator with 100% copper winding, and sound-absorbing casing. The ECONOMY MODE function allows reducing fuel consumption. Compact, light, and easy to transport. Perfect for camping, travel, fishing, and backup power at home.

Inverter Technology

Ensures stable output voltage of correct sine wave form, suitable for reliable operation of sensitive electronics.

Compact dimensions

The compact size of this model allows taking it anywhere. It becomes a reliable assistant during outdoor recreation, camping, fishing, providing necessary energy.

Economy mode

Economy fuel mode ECONOMY MODE reduces fuel consumption at low loads by reducing engine revolutions.

High-quality alternator

K&S Basic inverter generators are equipped with high-quality brushless alternator with 100% copper winding. Reliable and compact alternator on permanent magnets can withstand maximum loads without damage, guarantees long reliable operation of the generator unit.

Presentable design of the highest class

Modern, thoughtful casing design not only gives aesthetics, but also contributes to stable operation of the device. Sound-absorbing materials reduce noise level to 68 dB at a distance of 7 meters, making the generator comfortable to use both at home and in nature.

Benefits

Versatility of use

Suitable both for household needs and for active recreation or emergency situations — reliable power source anywhere.

Safe power supply for equipment

Pure sine wave allows safe connection of sensitive electronics without risk of damage.

Quiet operation

Sound-absorbing casing reduces noise level to 68 dB, providing comfort even during night use.

Fuel saving

The ECONOMY MODE function allows significantly reducing fuel consumption, which is especially beneficial for long-term use.

Convenience of transportation

Compact dimensions and low weight make the generator convenient for transportation and storage, ideal for outdoor trips.

Economy mode switch (Economy Mode)

allows reducing fuel consumption at low load.

Oil level indicator

warns of low oil level, overload – signals exceeding permissible power, voltage – indicates presence of output voltage.

AC sockets 2×16A (230V)

standard sockets for connecting household appliances, power tools.

Transport handle

designed for convenient carrying or moving of the generator manually.

Grounding bolt

serves for connecting the generator to the grounding circuit, ensuring safety during operation.

Reset button

used to turn on or off the generator. Serves as the main power switch of the device.

Specification

Inverter Generator KSB 33i S

Voltage, V	230
Max power, kW	3.3
Nominal power, kW	3.0
Power factor, cosφ	1
Frequency, Hz	50
Current (max), A	14.3
Outlets	2 × Schuko 230 V
Engine start	Manual
Fuel tank volume, l	4
Runtime at 50% load, h***	5.9
Noise level Lpa (7m)/Lwa, dB	68/95
Engine model	KSB 170i
Engine cylinder volume, cm3	150
Engine type	4-stroke gasoline
Engine power, hp	5
Crank case volume, l	0.4
Protection class	IP23M
Includes	Generator, Packaging, User Manual, Spark Plug Wrench, 6.0mm PH2 Screwdriver
Net dimensions (LxWxH), mm	492×285×460
Gross dimensions (LxWxH), mm	525×325×550
Net weight, kg	21.5
Gross weight, kg	23.5
SKU	KSB 33i S
Barcode	4260405368631

ATTENTION! The product is sold without engine oil or gasoline. Before the first start, engine oil for four-stroke gasoline engines must be added. We recommend 10W-30 or 10W-40 oil. Always check the oil level before each use. Use only unleaded gasoline with an octane rating of 90–95 containing no more than 10% ethanol.

Instructions

Inverter Generator in Soundproof Housing KSB 22i S, KSB 33i S

Instruction | Inverter Generators K&S Basic

K&S Basic Catalog (2023)

Catalog | Generators

Video Reviews

Inverter Generators K&S Basic

Overview and Start Guide for the KSB 33i S — quiet and lightweight 3.3 / 3.0 kW inverter generator

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Дуже задоволений генератором. Компактний, тихий, зручний.

God kvalitet vare og hurtig levering👍🏼

Nem bestilling og hurtig levering
Savner en Dansk manual

Primer uso, perfecto. fácil y suave

1. Придбав генератор KSB 33i S , через інтернет магазин KS, це було зручно, комфортно, швидко, дуже професійні фахівці, які надавали консультації і допомогу .
2. Отримав генератор через нову пошту, все було супер.
3. Ознайомився з інструкцією, перед запуском, залив правильну оливу, пальне, запустився генератор з першого разу, все добре.
4. Зараз щодня запускаю генератор і даю навантаження 1,5 кВт, 50% навантаження впродовж 20 годин, при цьому витрати палива складають в межах 0,9 л/годину, такий регламент експлуатації прописаний інструкцією, щось схоже на обкатку авто.
5. Доки покупкою задоволений, раджу.

Дякуємо за чудовий відгук, Олег! Раді, що ви задоволені покупкою та її експлуатацією. Бажаємо довгої та безперебійної роботи генератора!

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Frequently Asked Questions

The most effective way is to enable Economy Mode on the control panel. This function automatically regulates the engine speed: as soon as consumption decreases, the inverter instantly reduces the speed to a minimum. This provides two main advantages: fuel savings of up to 50% and a significant reduction in noise levels. Enable the "Economy" mode when basic consumers are operating (boiler, lighting, router, TV). However, be sure to turn it off before starting powerful equipment (for example, pumps or washing machines) to avoid overload protection.

€496,95

Inverter Generator KSB 33i S

Specification

Variants

Benefits