400kW High Efficiency Natural Gas Generator Silent Industrial Gas Genset for Factory Commercial Backup Power

Natural Gas Generator Set · 400 kW Prime / 440 kW Standby

400 kW Natural Gas Generator Set for Sites Without a Reliable Grid

One platform, four build types — open frame, silent canopy, containerized or trailer-mounted — configured to your site, your fuel and your duty. Tell us the load and the site, and we will confirm the build type, rating and lead time.

400 kWPrime power440 kWStandby power380/220 VRated voltage50 HzRated frequency1500 rpmRated speedIP23Protection grade

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Manufacturing since 20062,000+ sets delivered100+ countriesLoad-tested before shipment

Natural gas · unrestricted service accessDiesel & gas · 10–3,750 kVA · 100+ countries

400 kW Prime power

440 kW Standby power

380/220 V Rated voltage

2006+ Manufacturer since

Product overview

Heavy-duty natural gas generator sets for sites without a reliable grid

400 kW prime / 440 kW standby — 500 kVA — built as a natural gas package package for mid-size industrial and site power.

The Outevo 400 kW Natural Gas Generator Set is used for production lines and compressors, hotels and commercial buildings, data and telecom rooms, typically continuous prime duty with regular load swings. Loads are normally panel boards with mixed motor and lighting loads.

Every unit is assembled and load-tested on our own production line for the 400 kW classs. Shanghai Outevo Machinery Co., Ltd. has manufactured diesel and gas sets including this 400 kW rating generator sets since 2006 from a 20,000 m² production base in Shandong with a fully automatic line, and more than 2,000 sets have been delivered to over 100 countries.

Protection on the 400 kW set is IP23 or higher, upgradable for dusty, humid, rainy or high-temperature sites.

• ✓400 kW prime / 440 kW standby at 380/220 V, 50 Hz, 1500 rpm
• ✓Full service access — gas piping and control panel open to inspection
• ✓Tier-1 diesel engine platforms — Cummins, Perkins, Weichai and Yuchai
• ✓Closed water-cooling with forced fan and large-capacity water tank
• ✓IP23 or higher, upgradable for dust, humidity, rain and heat

Product features

Engineered for site conditions, not for the showroom

Heavy-Duty Natural Gas Construction

The 400 kW gas set is built on a steel base with anti-vibration mounting, the gas train and control panel integrated before the unit leaves the works.

400 kW Prime / 440 kW Standby Duty

Declared output is 400 kW prime and 440 kW standby (500 kVA) at 380/220 V, 50 Hz, 1500 rpm. Design duty is continuous prime duty with regular load swings with panel boards with mixed motor and lighting loads.

Tier-1 Natural Gas Engine Platforms

At 400 kW the gas engine is selected from Cummins and Weichai, then matched and aligned to the alternator before full-load testing in our own facility.

Closed Water-Cooling with Forced Fan

Closed-circuit water cooling with forced fan and a large water tank is specified for the 400 kW set, which stabilises temperature in high ambient and continuous load duty.

Industrial Protection and Environmental Adaptability

The 400 kW set carries sealed dustproof, waterproof and anti-corrosion treatment to IP23 or higher, with uprated protection available for severe sites.

Flexible Configuration and Fast Deployment

ATS, remote monitoring module, cable winch and quick connectors can be specified on the 400 kW set; the control, protection and voltage settings are configured to the project specification.

Specifications

Technical data — 400 kW natural gas generator set diesel generator set

Standard natural gas package configuration at 400 kW prime / 440 kW standby (500 kVA). Ratings, voltage and frequency are confirmed at specification.

Generator SetEngine & AlternatorControl & CoolingDimensions & Logistics

Related parameters	Parameter values
Power Capacity	Prime Power: 400 kW   Standby Power: 440 kW
Rated Voltage	380/220 Volts
Rated Current	Issued with the approved data sheet for the selected build
Rated Frequency	50 Hertz
Rated Speed	1500 rpm
Fuel Type	Diesel
Protection Grade	IP23 or higherUpgradable upon customization

Engine & alternator	Specification
Engine platform, standard	The engine platform for your order is confirmed at the specification stage
Alternative platforms	Cummins, Perkins, Weichai or Yuchai — the platform for your order is confirmed at order stage
Alternator	4-pole brushless, AVR-controlled — matched to the rating
Alternator brand options	Stamford, Leroy-Somer, Mecc Alte or Faraday
Matching	Engine, alternator and control system are matched to the rating and load profile you specify

Control & cooling	Specification
Cooling system	Closed water-cooling with forced cooling fan and large-capacity water tank, for stable temperature control under continuous load
Radiator design ambient	50 °C
Fuel system	Day-tank and fuel-system arrangement confirmed with the project specification
Control & protection	Configured to your project specification; optional automatic transfer switch (ATS) for automatic standby start, optional remote monitoring module
Ingress protection	IP23 or higher, upgradable upon customization

Dimensions & logistics	Value
Outline, natural gas (L × W × H)	Issued with the approved dimensional drawing for the selected build
Outline, silent canopy (same rating)	Issued with the approved dimensional drawing for the alternative build
Base frame	Fabricated steel skid, side-mounted natural gas layout
Net / gross weight	Supplied with the approved dimensional drawing and data sheet for your build
Container loading (20GP / 40HQ)	Supplied with the approved data sheet for your build
Basis	Standard natural gas configuration at this rating; refer to the approved dimensional drawing before installation design

Values above are published for the standard natural gas package configuration at 400 kW prime / 500 kVA. Refer to the approved drawing for the 400 kW build and data sheet for your build before installation design.

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Engine & options

Specify the engine platform, control scheme and build

Engine platform Cummins · Perkins · Weichai · Yuchai Diesel engines on the 400 kW set are selected from these Tier-1 platforms and matched to the alternator; the platform for your order is confirmed at order stage.

Control & protection ATS & remote monitoring On the 400 kW set, an optional automatic transfer switch for automatic standby start, plus an optional remote monitoring module. The control and protection scheme on the 400 kW set is set to your project specification.

Build configuration This model ships as a natural gas package set, normally in a soundproof canopy This model ships as a natural gas package set, normally in a soundproof canopy.

Applications

Where this 400 kW natural gas generator set is used

1. Production lines Where production lines and compressors is the load, the 400 kW rating is normally specified at continuous prime duty with regular load swings. Mixed motor and lighting load means the alternator is matched with step-load margin at 400 kW.

2. Hotels The 400 kW natural gas generator set set suits hotels and commercial buildings. Duty is continuous prime duty with regular load swings. Shift patterns for the 400 kW set usually mean 12–16 hours a day, so fuel autonomy is calculated on that basis.

3. Data Data and telecom rooms is a standard application for the 400 kW unit, which runs at continuous prime duty with regular load swings. Compressor and motor starts drive the transient requirement, which is checked against the 400 kW rating.

4. Quarries The 400 kW set is commonly applied to quarries and crushing plants at continuous prime duty with regular load swings. Parallel operation on the 400 kW set is often considered where duty is split between two units.

5. Agricultural processing For agricultural processing the 400 kW rating covers mid-size industrial and site power at continuous prime duty with regular load swings. Sound limits at the boundary usually point to a canopy build at the 400 kW rating.

6. Site offices Where site offices and welfare blocks is the load, the 400 kW rating is normally specified at continuous prime duty with regular load swings. Cable runs for the 400 kW set are longer, so voltage drop is checked before the final rating is fixed.

Compare configurations

Open frame, silent or containerized?

The same engineering and testing standard applies to this 400 kW rating in all three builds — the difference is enclosure, access and transport.

Consideration	Natural gas (this model)	Silent	Containerized
Enclosure	Open steel base frame, no canopy	Soundproof canopy	40HQ container shell
Service access	Unrestricted — no panels to remove for routine maintenance	Through canopy access doors and monitoring windows	Through container doors and reserved access panels
Noise control	Not attenuated — natural gas layout	Multi-stage silencing structure and sound-absorbing materials	Container shell combined with silencing
Weight and transport	Lightest of the three builds	Heavier than natural gas	Container handling and ocean freight
Typical duty	Prime power on site; standby for factories and buildings	Noise-sensitive locations such as residential, commercial and healthcare sites	Rapid transport and deployment, remote and long-duration sites
Rated power of this model	400 kW prime / 440 kW standby	Quoted per project	Quoted per project
Protection grade	IP23 or higher, upgradable	Upgradable upon customization	Upgradable upon customization
Minimum order quantity	1 set	Quoted per project	Quoted per project

This model · 400 kW natural gas generator set

Range · 10–3,750 kVA

Diesel & gas

Open frame · silent · containerized · mobile

All natural gas sets

Send us the required power for the 400 kW set, voltage and frequency and we will return a configuration.

FAQ

Frequently asked questions about this 400 kW natural gas generator set

What power rating does this generator set provide?

This unit is rated 400 kW prime / 440 kW standby (500 kVA) at 380/220 V, 50 Hz, 1500 rpm. Rated current is stated on the approved data sheet for the selected build, because it follows the voltage and power factor confirmed for the project.

Which natural gas engines are available for this set?

This 400 kW set is available on Cummins and Weichai platforms. The engine is matched to the alternator at the 400 kW rating and the complete set is aligned and full-load tested in our own works, so the platform for your order is confirmed at specification stage rather than assumed.

Natural Gas, silent or containerized — how do I choose?

Enclosure choice follows site conditions rather than rating. This page covers the natural gas package build; at 400 kW the same engine and alternator package can also be supplied in the other builds across Outevo’s 10–3,750 kVA range, with parallel operation is available where duty is split across two units.

Can the voltage and frequency be customised?

Yes. 380/220 V and 50 Hz are the published standard for the 400 kW rating, but voltage and frequency are set to your project specification under OEM/ODM terms, including 60 Hz and medium-voltage requirements where the project calls for them.

What is the minimum order quantity?

One set. A single 400 kW unit can be ordered for a standalone site; where load growth or redundancy is expected, parallel operation is available where duty is split across two units. Other ratings in the 10–3,750 kVA range are quoted per project.

How is the quality of each unit assured?

Every 400 kW set is assembled and load-tested on our own production lines before shipment, and travels with a data sheet and test record. Shanghai Outevo Machinery Co., Ltd. has manufactured diesel and gas sets including this 400 kW rating generator sets since 2006 from a 20,000 m² production base in Shandong.

Get a quote

Configure your 400 kW natural gas generator set diesel generator set

Tell us the rating, voltage and frequency you need for the 400 kW unit and where it is going. Our engineering team returns a configuration and quotation.

What we need from you

• Required power rating — this model or another rating in the 10–3,750 kVA range
• Voltage and frequency settings for your site
• Prime power or standby duty, and the application
• Destination port and required quantity

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Your configuration: 400 kW natural gas generator set (this model), 380/220 V, 50 Hz

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Required power                  400 kW natural gas generator set (this model)                   Other rating in the 10–3,750 kVA range                   Silent configuration                   Containerized configuration                   Mobile configuration                

Voltage                  380/220 V (standard)                   Other voltage — specify in message                

Frequency                50 Hz (standard)                 60 Hz                 Other — specify in message              

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Send Inquiry

Custom designs at 400 kW are quoted per project.

2006+

Manufacturing since

100+

Countries served

2,000+

Sets delivered

20,000 m²

Production base

Email: [email protected]

Phone: +86-13280035385