1260kVA / 1.26MVA Diesel Generator – Himoinsa – HYW-1260 T5 – Three Phase

1260kVA / 1.26MVA Diesel Generator – Himoinsa – HYW-1260 T5 – Three Phase

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A 1260kVA containerised diesel generator powered by a Yanmar AY40L.ET engine with a Stamford PI734A alternator, rated 1350kVA standby and housed in a soundproofed 20ft high-cube container.

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Himoinsa – HYW-1260 T5 – 1260kVA / 1.26MVA Diesel Generator – Three Phase

The Himoinsa HYW-1260 T5 is an industrial-range diesel generator supplied in a 20ft high-cube soundproofed container. A Yanmar AY40L.ET engine is coupled to a Stamford PI734A alternator, delivering 1260kVA prime and 1350kVA standby power at 400/230V, 50Hz.

The Yanmar unit is the most compact engine in this output class, at 40.76 litres across twelve cylinders, and runs on a coolant-based cooling system with a radiator water level sensor. A 999-litre fuel tank integrated into the reinforced chassis provides around five hours at 70% prime load.

The container uses high-density volcanic rock wool insulation, anti-vibration mounts and a residential steel silencer with -35dB attenuation. Control options range from the CEM8 auto-start panel to automatic units with mains control and transfer switching, and the set complies with Uptime Institute requirements for data centre duty.

Key Features

  • Yanmar AY40L.ET Stage V engine
  • Stamford PI734A alternator
  • Compact 20ft high-cube soundproofed container
  • 999 litre integrated fuel tank
  • Radiator water level sensor
  • Uptime Institute compliant for data centre duty

Generator installation and commissioning

At Solent Power we can provide full turnkey support for diesel generators including the supply, installation, commissioning and aftersales support such as servicing and maintenance. If you would like advice about your generator specifications or installation we would love to support you and help make the process easy and efficient. Please contact us for help.

General Specifications

kVA (ESP)1350
kVA (PRP)1260
kW (ESP)1080
kW (PRP)1008
FuelDiesel
PhaseThree
Voltage400/230 V
Available Voltages380/220 V; 415/240 V
Rated Speed1500 r.p.m.
Rated Frequency50 Hz
Power Factor0.8 Cos Phi
Container20ft High-Cube
Fuel Tank Capacity999 Litres
Autonomy (70% PRP)5 hrs
Autonomy (100% PRP)4 hrs
DimensionsL6058 x W2438 x H2896 mm

Engine Specifications

ManufacturerYanmar
ModelAY40L.ET
Engine Type4-stroke diesel
Injection TypeDirect
AspirationTurbocharged and after-cooled
Number of Cylinders12-V
Bore x Stroke155 x 180 mm
Displacement40.76 L
Compression Ratio14.35
Cooling SystemCoolant
Oil Capacity190 Litres
Governor TypeElectronic
Air Filter TypeDry
Rated Engine Output (PRP)1095.1 kW
Rated Engine Output (ESP)1168.1 kW

Alternator Specifications

ManufacturerStamford
ModelPI734A
Poles4
Connection TypeStar
Mounting TypeS-00 21"
Insulation ClassH Class
Enclosure ProtectionIP23
Excitation SystemSelf-excited, Brushless
Voltage RegulationA.V.R. (Electronic)
Bracket TypeSingle bearing
Coupling SystemFlexible Disc
No delivery information available.
No warranty information available. Please contact us for more details.
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Solent Power Ltd (Company Number 12622565) is a company registered in England and Wales. Our registered office is located at Station yard, Bowes Hill, Rowlands Castle PO9 6BP. VAT No. 363504018

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