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Generator power guide

400 kVA diesel generators.

Compare UK-designed and UK-manufactured 400 kVA diesel generator options and nearby ratings from Baudouin, Cummins, Perkins, Scania. Check the exact prime and standby output, engine and enclosure before selecting.

Compare exact outputs

Options around 400 kVA.

A rounded GPS model class is not a guaranteed duty rating. The tables below identify the actual documented output for each reference configuration.

Larger site and facility loads

Specify 400 kVA around your load.

For larger commercial sites and industrial equipment, assess the largest load step, motor starting, nonlinear loads and the operating duty. The steady-state kVA total alone does not settle the generator size.

At a power factor of 0.8, 400 kVA corresponds to 320 kW mathematically. That conversion is not a substitute for the manufacturer’s duty rating or a starting-load assessment.

Discuss your load schedule
Does a 400 kVA model deliver 400 kVA continuously?

The model class alone does not establish continuous capability. Check prime and standby ratings and the manufacturer’s load-profile conditions. Confirm the intended run hours and average load when requesting a quotation.

Can I get a canopied 400 kVA generator?

Compare the canopied entries above, then confirm enclosure dimensions, sound requirements and final duty rating with GenPro.

Which engine brands are available at this output?

The comparison above includes Baudouin, Cummins, Perkins, Scania. Some are close alternatives rather than an exact match; use the electrical rating table to compare them.

Electrical output comparison

ModelEngine brandFormatPrimeStandbyVoltage
GPS400BSBaudouinAcoustic canopied365 kVA400 kVA400 V
GPS400BBaudouinOpen set365 kVA400 kVA400 V
GPS400SSScaniaAcoustic canopied401 kVAConfirm on enquiry400 V
GPS400SScaniaOpen set401 kVAConfirm on enquiry400 V
GPS440BSBaudouinAcoustic canopied402 kVA442 kVA400 V
GPS440BBaudouinOpen set402 kVA442 kVA400 V
GPS400PSPerkinsAcoustic canopied356 kVA403 kVA400 V
GPS400PPerkinsOpen set356 kVA403 kVA400 V
GPS410SScaniaOpen set360 kVA405 kVA400 V
GPS450PSPerkinsAcoustic canopied406 kVA450 kVA400 V
GPS460PSPerkinsAcoustic canopied406 kVA454 kVA400 V
GPS450PPerkinsOpen set406 kVA450 kVA400 V
GPS460PPerkinsOpen set406 kVA454 kVA400 V
GPS410CSCumminsAcoustic canopied360 kVA407 kVA400 V
GPS410CCumminsOpen set360 kVA407 kVA400 V
GPS410PSPerkinsAcoustic canopied361 kVA412 kVA400 V
Compare nearby sizes

Explore other power requirements.

340kVA generators350kVA generators360kVA generators410kVA generators420kVA generators440kVA generators450kVA generators460kVA generators

Let’s specify your next generator.

Tell us your load, site and application. We’ll help you choose the right configuration.

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