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Sdec Diesel Generator ARK-S 1250 N5

ARK-S 1250 N5 Diesel Generator – Heavy-Duty, High-Capacity, and Reliable SDEC Power

The ARK-S 1250 N5 diesel generator, designed by Arken Power Solutions, delivers 1130 kVA prime and 1230 kVA standby power, providing exceptional reliability, fuel efficiency, and long-term durability for industrial and commercial energy applications. Powered by the SDEC 6WTAA35-G310 6-cylinder, turbocharged, aftercooled, water-cooled engine, it ensures consistent performance, superior fuel economy, and stable operation under continuous heavy load. Its NEKRA ARK 6F alternator with electronic AVR offers ±1% voltage regulation and <5% THD, guaranteeing clean, stable, and efficient power output. Built in compliance with ISO 8528 and ISO 3046 standards, the ARK-S 1250 N5 operates at 72.7 dBA, features a corrosion-resistant canopy, and includes a 2-year or 1000-hour warranty, making it a dependable and high-performance power generation solution for both continuous and standby use.

Power Prime (kVA / kW)

1130 / 904

Power Standby (kVA / kW)

1230/ 984

Speed (r.p.m)

1500 dev/dk

Standard Voltage

400/230VAC

Power Factor(Cos Phi)

0,8
BrandSdec
Güç kW PRP1018
Model6WTAA35-G310
N° of Cylinders / Valves6/24
Engine Type4 Stroke
Displacement [lt]35,1
AspirationTurbocharged - Air to water charge cooled
Bore[mm] x Stroke[mm]186x215
Compression Ratio13.5:1
Air FilterReplaceable Element
Cooling Method Water Cooled (water + %50 antifreeze)
Total Coolant Capacity (lt)N/A
Governor TypeElectronic
Electrical System24VDC
Battery Charger Current55A
Oil Capacity [lt]100
Exhaust Gas Flow PRP [m3/min]18,6
Exhaust Gas Temp. [°C]650
Air Flow PRP [m3/min]N/A
Cooling Air Flow PRP [m3/min]N/A
Starter Power (kW)13kW
Standard Battery Voltage [V]24VDC
Standard Battery Capacity4x105Ah
Standard Battery Type Maintenance-Free Lead Acid
BrandNekra
ModelARK 6F
Voltage400 /230 VA
Number of Phase3
Power Factor0,8
Number of Poles4
Connection TypeStar
BearingSingle

ENGINE
Arken Generator provides industrial engines that meet ISO 8528, ISO 3046 specifications; heavy duty type, oil, air or water-cooled depending on the requirements; for low fuel consumption; with mechanical and/or electronical type of governor mounted on fuel pump to ensure precise speed adjustment and regulation; with oil, fuel and air filter system based on engine type; oil and fuel designed for heavy operational conditions in order to make sure the unit lasts a long time with high performance; 4-stroke; direct injection with all the limit and level sensors required for protection. The engine is supplied with all the necessary equipment for safe operation. Only engines designed for standby are not included in the production portfolio.

ALTERNATOR
Arken Generator uses original European brand alternators for its gensets, that complies with all international certificates, IEC 60034-1, ISO8528-3, EN50151, BS4999-5000 VDE 0530, depending on their power and requirements. The alternators, that has high efficiency and high performance for all conditions, have all the quality certificates and comply with world standards.
COOLING SYSTEM
In order to meet variations such as availability, ease of spare parts, high performance and maximum efficiency, Arken Generator selects its radiators from the original radiators of the engine company in the generator set or applies the radiators approved by the engine company to the generator sets.

FRAME
Arken Generator manufactures its own chassis for all generator sets based on international standards. The chassis are designed and manufactured from plate sheet or profile content to show high resistance to vibration and stresses.

FUEL SYSTEM
Pressure loss from gas mixer (mbar): 5
Maximum suction pressure (mbar): 30
Max. Gas inlet temperature (°C): 35
Min/Max customer supply pressure before gas regulator (Bar): 0.02 / 0.04
Min./Max supply pressure at motor inlet (mbar): 15 / 35
Min. diameter of gas inlet pipe (mm): 24

CANOPY
To provide sound insulation (ISO8528-10:1998) and to protect the generator from the corrosive effects of external weather conditions, cabins or containers are used depending on the size of the generator or the degree of sound intensity. Although the priority when designing the cabinets is aimed only at the sound level, in addition to the conditions specified by ISO3046 and ISO8528 standards, the generator is designed to provide the declared power in tropical climate and 50°C ambient temperature, 30% relative humidity value and sea level. The cabins have features such as compact structure, low height, low noise level, easy access to the engine-alternator and control panel, two-point lifting, exhaust silencer hidden inside the cabin for safety and corrosion protection, and the ability to be disassembled.
DOCUMENTATION
Arken Generator Maintenance and user manual, Engine Operation and maintenance manual, Operation and maintenance manual, Control device Operation and maintenance manual, Warranty card, Electrical diagram

WARRANTY
The warranty period starts from the date of receipt of the goods, 1 Years or 1000 hours.

Datasheet

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