Skip to content
4U PowerGenerationFZC

400 kVA generator · UAE, KSA & Iraq

400 kVA Diesel Generator Price & Specs in UAE

A 400 kVA generator delivers about 320 kW at 0.8 power factor — the right size for hotels, malls, hospitals, factories, towers and large construction projects. We supply it with Cummins, Perkins, Volvo Penta or Baudouin engines from our Sharjah warehouse, with a matched ATS panel and a 1-year warranty.

Output
320 kW
ATS panel
630 A
At 75% load
62 L/h
Warranty
12 months

400 kVA generator specifications

400 kVA generator specifications
Standby rating400 kVA / 320 kW
Prime rating (typical)≈ 364 kVA
Full-load current @ 400 V577 A
Matching ATS panel630 A, 4-pole
Fuel use @ 50 / 75 / 100 % load44.8 / 62.4 / 86.4 L/h
Base tank for 8 h @ 75 %≈ 550 L
Engine optionsCummins, Perkins, Volvo Penta, Baudouin
EnclosureCanopy or open frame
Voltage / frequency400/230 V, 50 Hz (60 Hz for KSA on request)
Warranty12 months

Approximate values at 0.8 pf and 400 V; final figures are confirmed for the chosen engine model in your quotation.

Who is this size for?

A 400 kVA set typically powers hotels, malls, hospitals, factories, towers and large construction projects.

Consider two synchronised sets instead of one large set for redundancy and better fuel use at part load.

Size my generator →

Closest models to 400 kVA

Open a model for full specifications and its downloadable datasheet.

4U generator models
ModelStandby kVAPrime kVAEngineFuel 100% (L/h)Datasheet
4U-L350385350Lister Petter LP612G372.9Datasheet
4U-P350400350Perkins 2206A-E13TAG277Datasheet
4U-C365400365Cummins QSG12-G372Datasheet
4U-B365400365Baudouin 6M21G2D0/S82.1Datasheet
4U-L375413375Lister Petter LP613G179Datasheet

From the catalog

Products that cover 400 kVA

  • Cummins Diesel Generator 20–500 kVA
    Generators20–500 kVA

    Cummins Diesel Generator 20–500 kVA

    Engine
    Cummins
    Fuel
    Diesel

    1-year warranty

    Cummins-engined generator sets known for strong load acceptance — a common choice for construction sites, commercial buildings and rental fleets in the UAE, Saudi Arabia and Iraq.

  • Volvo Penta Generator 80–700 kVA
    Generators80–700 kVA

    Volvo Penta Generator 80–700 kVA

    Engine
    Volvo Penta
    Fuel
    Diesel

    1-year warranty

    Volvo Penta TAD-series gensets offering excellent fuel economy and clean emissions for hotels, commercial towers and marine-adjacent facilities.

  • Chinese Engine Series Generator 20–1000 kVA
    Generators20–1,000 kVA

    Chinese Engine Series Generator 20–1000 kVA

    Engine
    Chinese Engine Series
    Fuel
    Diesel

    1-year warranty

    Value-engineered generator sets built on proven Chinese engine platforms — the budget-conscious option for construction, agriculture and backup power where total cost of ownership comes first.

400 kVA generator

Frequently asked questions

About 320 kW of running load at 0.8 power factor. Keep 20–25 % headroom for motor starting and Gulf heat — in practice roughly 256 kW continuous, for example around 106 split AC units of 2 tons, or the equivalent mix of lighting, pumps and equipment.

Roughly 44.8 L/h at 50 % load, 62.4 L/h at 75 % and 86.4 L/h at full load. Exact figures depend on the engine model; we include the manufacturer's fuel curve with every quotation.

Full-load current at 400 V three-phase is about 577 A, so a 630 A ATS is the usual match — or the main incoming breaker rating if that is larger. A 4-pole ATS is recommended where the generator neutral is separately earthed.

It depends on the engine brand, enclosure, controller and whether you need an ATS and fuel tank. Send us the site and delivery city on WhatsApp and we reply the same working day with 2–3 engine options side by side.

Standby (400 kVA) is for emergency backup with limited annual hours. If the set is your main power — a construction site or an area with daily outages — size on the prime rating (about 364 kVA for this set) or choose the next size up.

Get a 400 kVA generator price today

Send the delivery city and duty (standby or prime) — we reply with engine options, price and lead time.

CallWhatsApp