Hyundai 5.8kW / 7.5kVA* Silenced Diesel Generator, 3000rpm, Long Running Standby, 230v Single Phase Output | DHY8000SELR

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£1,299.99 inc. VAT
£1,083.32 ex. VAT
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Orders to be received within 1 - 5 working days. There may be a slight delay in courier tracking becoming available. Postcode exclusions apply.

4 months at 0% interest, Click for more info

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Hyundai 5.8kW Diesel Generator

The DHY8000SELR standby generator is the long running version of the DHY8000SE, with a large 25L diesel tank, boosting the maximum running time of this standby diesel generator to 30 hours of backup power.

Long Running Standby Generator

Powered by a 4-stroke, air-cooled D452 Hyundai diesel engine, the DHY8000SELR backup generator has a maximum output of 5.8kW. It features the same AVR alternator which produces clean energy. Although it won’t be able to run everything, it allows more essential home items to continue running in the event of a power cut when the National Grid fails.

The DHY8000SELR is ATS (Automatic Transfer Switch) compatible. ATS is an optional extra that ican be connected to an ATS system for maximum convenience. When the ATS module detects a loss of power from the mains supply it simply powers your generator up automatically, then shuts it off when it detects power returning from the mains. This is also an electric start diesel generator, with a simple turn of the key being all that’s required to start or stop the machine when controlled manually.

Silenced Generator for minimum disruption

Housed in silenced casing, the DHY8000SELR is a very quiet machine and won’t disturb you, your family or your employees when powering your building. With a sound rating of 70dB @ 7 metres you will seldom hear the generator while it’s at work.

Economical Standby Power

The DHY8000SELR diesel generator is economical to run, using roughly 1L of diesel every hour. Since the DHY8000SELR can run on red diesel, which is significantly cheaper than the diesel you put into your car making extra savings over long run times, the perfect back-up solution.

Need More Power?

Check out our larger, water-cooled 1500rpm slow running diesel generators here.


For peace of mind, this generator comes with a Hyundai 1 year / 1,000 hour warranty (whichever comes first), as well as full UK parts backup to maintain your genset for years to come.

For information on how to properly maintain this diesel generator, please view our diesel generator maintenance checklist here

Designed for standby use. For Continuous power supply, we recommend a 1500rpm diesel generator.

For the recommended usage of this generator, please see here.

Please note, this is a 3000rpm generator, ideal for backup power in the event of a power cut, or for powering a workshop for example. For more frequent use, or if running for extended periods of time every day (prime power) you should purchase a 1500rpm water-cooled, slow running generator that has a much longer lifespan. For more details on the recommended usage of 3000rpm or 1500rpm generators, please see here.

*All non inverter or converter generators except HY3400 Hirepro:
Fitted with an AVR (Automatic Voltage Regulator) controlled alternator to maintain voltage as near to 230v as possible. Non AVR alternators have a large fluctuation in voltage and can damage sensitive electronic equipment. If you require a portable generator to replicate the mains supply, it is recommended that a pure sine wave inverter generator is used.
*ATS module is sold separately*
For ATS module, call 01646 404406


Model DHY8000SELR
Rated/Prime kVA* 6.3
Rated/Prime kW 5
Max/Standby kVA* 7.25
Max/Standby kW 5.8
Phase Single
Voltage 115 / 230
Connection Method(s) Sockets - 1 x 115V/16A 1 x 115V/32A 1 x 230V/32A
Rated Speed (RPM) 3000
Frequency (Hz) 50
Max/Continuous Current (Amps) 115v 50 / 43.5 - 230v 25 / 21
Power Factor (Cosφ) 1
Fuel/Power Source Diesel
Fuel Tank (Litres) 25
Runtime (Hours) @ 100% Load 14.62
Noise Level @ 1m 75% load (dB) 96
Noise Level @ 7m 75% load (dB) 70
Hyundai Diesel Engine Model D450E
Max Engine Power (hp) 12
Engine Displacement (CC) 456
No. of Cylinders 1
Displacement (Litres) -
Recommended Oil Type 15w40 / 10w40
Oil Capacity (Litres) 1.65
Oil Filter Part No. D450-B9+D450-B8
Aspiration Natural
Fuel Regulation/Governor System Mechanical
Fuel Consumption (100% Load) [Litres] 1.71
Fuel Filter Part No. D450-R05
Cooling Forced Air-Cooled
Alternator Model D450/500-S01-4
Breakers 1P 30A 1P 21A 1P 13A
Alternator Type Brushed
Voltage Regulation AVR
Air Filter Part No. D450-I4
Net Weight (kg) 158
Gross Weight (kg) 167
Wheel Kit? Yes
Product Dimensions L x W x H (mm) 960 x 560 x 890
Packaged Dimensions L x W x H (mm) 960 x 560 x 910
Battery (Ah) 12v 36a/h
ATS / MTS Compatible Yes
Control Panel LED3 DISPLAY
Alternator Warranty -
General Component Warranty -
Accessories -
Warranty 1 Year / 1000 Hours* (Terms apply)
Model EAN 610370632338
Product Type Diesel Generator
Assembly Required? Yes - some assembly may be required

1 Review Hide Reviews Show Reviews

  • 4

    Posted by Karl on 21st Jan 2024

    Thus came very quickly with the thing to plug into it, took about 10 minutes to wire it in and works well, just waiting for the solar man to explain where in the inverter to put the automatic turn on, This generator looks well made and time will tell, but a friend says they got a good write up The company was good to deal with as well

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