Gasoline generator "Könner & Söhnen" KS 12-1E ATSR

Voltage230 V
Max power9.2 kW
Nominal power9.0 kW
Engine startManual/electric
Outlets1 x Schuko 230 V, 1 x CEE 230 V 32 A, 1 x CEE 230 V 63 A
Special functionsGasoline, ATS output

KS 12-1E ATSR gasoline generator is maximum power with one cylinder! The generator is suitable for connecting an ATS (automatic transfer switch) unit. A user-friendly ergonomic control panel with a generator emergency stop button and a multifunction LED display allows monitoring of the generator operation: voltage, frequency, operating hours, as well as oil level. This model is equipped with sockets for full power removal by the generator. The sockets are equipped with fuses and completed with suitable plugs. The high-capacity 55 l fuel tank ensures lengthy and continuous operation.


Powerful and reliable 1-cylinders air-cooled engine (18.5 HP), high-performance and costeffective, and conform to European quality standards (including exhaust emissions and noise). Each engine has a corporate K&S stamp and an individual serial number in order to ensure the quality control of manufacture and after-sales service.


Easy start system allows you to start the engine quickly and to do this without much effort. More powerful models are additionally equipped with an electric start system. Over Head Valve engine (ОНV) increases the lifespan of engine, reduces fuel consumption and noise level.


The user-friendly ergonomic control panel allows easy control of the whole device, requires no special skills, and is equipped with sockets designed for removal of full power delivered by the generator and modern LED- display (hour meter, frequency, voltage, oil alarm). PaneI is equipped with engine emergency switch.


KS ATS 4/32-12
Battery voltageDC8.0-18V
Peak power demand10 W
Power (230V)14 kW
Current (max) 230 V64 A
Power 400V21 kW
Current (max) 400 V32 A
Working environmentfrom -10°C to +55°C; humidity: ⩽60%
Storage environmentfrom -10°C to +70°C; humidity: ⩽60%
Insulation classAC1.5KV / 1min 1mA
Maximum battery charging current from the built-in power supply, A
Control cable length3 m
Cable (100% cooper)4260405363650
Voltage230/400 V
Frequency50 Hz
IP protection classIP41
Net dimensions (LxWxH)220 х150х370 mm
Gross dimensions (LxWxH)220х150х370 mm
Net weight5.5 kg
Gross weight6.1 kg

The ATS (Automatic transfer switch) unit automatically starts the generator and transfers load to it when the main power supply is disconnected.

Gasoline and diesel generators with an electric starter are equipped with a universal 5-pin connector for an automatic transfer switch unit (ATS input). The ATS unit has a PLC that allows the automatic start/stop of the generator to be programmed in the event of a power outage and after its restoration.

PROGRAMMABLE LOGIC CONTROLLER OF THE ATS UNIT: - Automatic/manual operation - Programming of engine starting time after power outage - Programming of engine warm-up time before connecting to consumer - Setting of starter operation time - Engine performance monitoring - Battery charging when the generator is off

The ATS (Automatic Transfer Switch) unit automatically starts the generator and transfers load to it when the main power supply is disconnected and automatically stops the generator when the central power supply is restored.


TM Könner & Söhnen generators are equipped with a high-end synchronous alternator with 100% copper winding. It is only the copper winding that can withstand maximum loads without any damage to ensure long-term reliable operation of the generator set.


“Könner & Söhnen” generators are equipped with an enlarged steel fuel tank (55 l), which extends the generator’s operating time without refueling. The fuel level indicator is located on the tank for ease of use.
Voltage, V
Max power, kW
Nominal power, kW
Frequency, Hz
Current (max), А
1 x Schuko 230 V, 1 x CEE 230 V 32 A, 1 x CEE 230 V 63 A
Fuel tank volume, l
LED display
Voltage, frequency, working hours, oil alarm
Noise level Lpa (7m)/Lwa, dB
Power output DC, V/А
Engine model
KS 650
Engine type
Gasoline powered one-cylinder, four-stroke air-cooled
Engine power, hp/kW
Crank case volume, l
Engine cylinder volume, cm3
Power output controller
Intelligent voltage stabilization system AVR
Engine start
Accumulator, A·h
Alternator winding
Net dimensions (LxWxH), mm
Gross dimensions (LxWxH), mm
Net weight, kg
Gross weight, kg
Protection class
EAN code

Assembled in PRC.

**In transient modes, the frequency of the generator can change in the short term, that is, during normal operation of the generator, the deviation of the frequency indicator is permissible. Depending on the type of generator, engine and operating mode, the frequency can be 49-54Hz

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KS 12-1E ATSR Gasoline Generator

Power outages or blackouts affect not only residents of private households but also various businesses. The centralized power supply system is far from ideal. Thus, as an owner of a KS 12-1E ATSR gasoline generator from Könner & Söhnen, you can supply your home, a store, or even a small business with electricity. After all, it has a power of 9 kW!

All our gasoline generators, the price of which is quite affordable, are of high quality and designed to prove German technology. All our gasoline generators have the following core features:

  • High reliability and functionality;
  • Ergonomic design and ease of use;
  • Efficiency and safety.

Features of the KS 12-1E ATSR Gasoline Generator

The KS 12-1E ATSR gasoline generator is equipped with a heavy-duty one-cylinder four-stroke engine with air cooling. You can start the engine in three ways:

  • Manual start system;
  • Electric start with key.
  • With the ATS unit (Automatic Transfer Switch) connected, the generator will start automatically upon a power failure.

The KS 12-1E ATSR gasoline generator features a convenient, ergonomic control panel enabling access to all functions. A low oil level indicator issuing an automatic alarm when there is not enough oil in the system provides additional protection for the engine of the gasoline generator. In addition, the display shows the number of operating hours, voltage, and frequency.

Why choose a KS 12-1E ATSR gasoline generator?

When choosing a generator, it is essential to consider its functionality, power rating, startup type, and ease of operation.

The KS 12-1E ATSR gasoline generator has the following advantages:

  • High-power air-cooled engine that meets all European quality standards;
  • Easy start, two startup modes, and an ATS connection option;
  • User-friendly ergonomic control panel;
  • Simple and easy handling;
  • Alternator with a 100% copper winding that withstands heavy loads, which is critical for these high-powered generators.

Considering the specifications of KS 12-1E ATSR, customer reviews, benefits, and price, it is clear that it is a good purchase. Given the gasoline generator price, which is quite reasonable and underpinned by its functionality, we also offer other gasoline models. The full list of these models can be found in the section “Könner & Söhnen Gasoline Generators”.

Overall, the KS 12-1E ATSR gasoline generator is easy to operate and ready to run at any time. It will be a great decision to purchase such a versatile assistant for your home, garage, construction site, or business enterprise. So please do not hesitate to contact our managers on the phone numbers listed on the website!