Diesel generator "Könner & Söhnen"
Voltage 230V/400V
Max/Nominal power (230V) 6.5/6.0 kW
Max/Nominal power (400V) 7.5/7.0 kW
Engine power 18 HP
Engine start Electric
Fuel type Diesel
Engine model KS 520HD-V
Outlets 1x32A (230V)
1x16A (400V)
Fuel tank volume 20 l
Crank case volume 1.65 l
Accumulator 30 Ah
Net weight 168 kg
Frequency 50 Hz

VTS system

Universal generators 2 in 1 with a unique phase switching system VTS (Voltage Transfer Switch), which allows you to use one generator as a single-phase (230V) and three-phase (400V) with almost no loss of power. Each mode has its own automatic protection. No need to buy two separate generators.

Könner & Söhnen engines

Branded engines

Engines for diesel generators, as well as for gasoline, are manufactured under license DIMAX Int. GmbH and are marked with their own brand with the logo. In all models, the power reserve of the engine in relation to the alternator allows you to issue the declared voltage and maintain its stability in the full range of voltages. All engines are tested for long continuous operation, and then disassembled and examined for faults. Each engine and each generator has an individual serial number, which allows us to control the quality of production and service. The engines comply with all international and European standards of quality, efficiency, environmental friendliness (including the level of harmful emissions and noise).

Automatic transfer switch

Automatic transfer switch


Battery voltage DC8.0-18V
Voltage 230/400 V
Power 230 V 14.4 (28.8) kW
Current (max) 230 V 63 (120) A
Power 400 V 34.8 kW
Current (max) 230V 63 A
Working environment from -10°C to +55°C;
humidity: ⩽60%
Storage environment from -10°C to +70°C;
humidity: ⩽60%
IP protection class IP41
Insulation class AC1.5KV / 1min 1mA
Maximum battery charging current from the built-in power supply
Control cable length 3.0 m
Net dimensions (L*W*H) 400х320х200 mm
Gross dimensions (L*W*H) 460х380х250 mm
Net weight 6.5 kg
Gross weight 7.9 kg
EAN code 4260405362455

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 6-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.

– 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 KS ATS 4/63HD ATS unit is compatible with all Könner & Söhnen diesel generators with the abbreviation “ATSR” in the article number.

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.

Increased engine life

Generators series “HEAVY DUTY” are suitable for use not only as a backup power supply, but also for full long-term operation. Engine life exceeds 3000 hours, which is confirmed by many hours of multi-level tests and warranty. But of course the engines show such high performance with proper operation and the passage of planned maintenance.

Extended warranty

Diesel generators series “HEAVY DUTY” applies extended warranty – 2 years / 3000 hour (depending on what event comes first) with proper operation and scheduled maintenance.

The user-friendly ergonomic control panel

Comfortable ergonomic panel allows you to easily control the entire unit and does not require additional skills. Modern multifunctional LED-display shows the frequency, voltage, the number of hours worked by the generator and the operating time from the start in minutes. The information on the display helps to easily control the quality of the voltage output by the device.

Pre-start heating (PREHEATER)

Diesel generators series “HEAVY DUTY” are equipped with a pre-start heating function, which allows you to run the generator in the winter without much effort.


All-season, noise-absorbing, vandal-proof casing provides effective protection of the generator and prolongs its service life. The casing is equipped with handles and transport wheels for easy movement.

Transport wheels

The generator housing is equipped with a 4-wheel transport set for easy movement of the unit.

Accessories set

Generator is equipped with additional accessories: a portable 2P+PE 16A 230V power plug, a portable 2P+E 230V 32A power plug, a 8x10mm hook key, 12x14mm and 17x19mm keyholes and a two way 6.0mm PH2 screwdriver.


Voltage, V 230/400
Max/Nominal power (230V), kW 6.5/6.0 kW
Max/Nominal power (400V), kW 7.5/7.0 kW
Frequency, Hz 50
Current, A (max) 28.26/13.54
Outlets 1x16A (400V), 1x32A (230V)
Fuel tank volume, l 20
Working time at 50% load, h* 11.1
LED display Voltage, frequency, working hours
Noise level Lpa/Lwa, dB 69/94
Power output DC, V/А 12/8.3
Engine model KS 520HD-V
Engine type Diesel powered one-cylinder, four-stroke air-cooled
Engine power hp/kW 18.0/13.24
Crank case volume, cm3 1.65
Engine cylinder volume, cm3 498
Power output controller Intelligent voltage stabilization system AVR
Engine start Electric
Power factor, cosφ 1(230V)/0.8(400V)
Accumulator, Ah 30
Output for ATS +
Preheater +
Net dimensions, mm 900x545x905
Gross dimensions, mm 960x570x985
Net weight, kg 168
Gross weight, kg 178
Protection class IP23M
EAN code 4260405362363

*Fuel consumption depends on many factors, such as load, fuel quality, season, altitude, technical condition of the generator.

Assembled in PRC.