DELIVERY UPDATE:All orders will be dispatched on a 1 to 5 working day delivery service

300kVA Long Run Cummins Powered Diesel Generator by Evopower | UKC300ECO-LR

We price match

Give our sales team a call on
01437 700 123
and we'll happily price match

  • 300kVA (Max/Standby)
  • 250kVA (Prime)
  • CUMMINS Diesel engine
  • 1500rpm - slow running for long lifespan
  • Deep Sea Electronics DSE6120 MKIII Control Panel
  • Auto/Manual Transfer switch compatible

Business Finance

Business Finance Available through Tower Leasing finance plans From £459.41 per month

Only 10 left

In Stock

Delivery update: All orders will be dispatched on a 1 - 5 working days delivery service.There may be a slight delay in courier tracking becoming available.

£20,997.00 exc. VAT £25,196.40 inc. VAT


300kVA Long Run Cummins Powered Diesel Generator by Evopower | UKC300ECO-LR

The Powersite provides you with the Evopower 3-phase Diesel Generator. This diesel generator produces 300 kVA (242 kW) standby/max power or 275 kVA (220 kW), when used for continuous or prime power. 

This Evopower diesel generator is ideal for ensuring your home or business is never without power. Powered with a Cummins engine known for their reliability, longevity and fuel economy that will keep you up and running for both standby/backup power as well as prime power. 

The Cummins powered Evopower generator engine is turbocharged with an intercooler that runs at 1500RPM whilst maintaining a 50Hz output.

The 6 Cylinder turbocharged 9.5 litre 6LTAA9.5-G3 diesel engine manufactured by Cummins uses high-quality components and Fleetguard filters. The engine oil capacity is 27.6L,  we recommend using SAE 15W40 oil and using a 50/50 mix for the coolant/radiator fluid of 50% ethylene glycol (anti-freeze) and 50% water.

The electronic governor regulates the fuel that is pumped into the engine. This adjusts the fuel intake quickly as the load increases, whilst maintaining the rpm and keeping the frequency output stable at 50hz.

Slow Running 1500rpm

Shorter life generators run at a faster speed of 3000rpm. Unlike these, the Evopower Cummins Powered range all run at 1500rpm meaning there is less strain on internal components and the engine. Giving you the peace of mind that this diesel generator will last for years to come, providing regular servicing and maintenance is completed.  

Weather Proof & Noise Cancelling Canopy 

The Evopower generator is enclosed in a heavy-duty, rustproof, powder-coated weatherproof canopy. The canopy reduces the noise level to only 70 dB at a 7-metre distance. All fittings are Stainless steel.

UK Design

The ECO series generators are designed in the UK using only the highest quality components. The Evopower Generator is fitted with CHiNT 4 pole MCCB breakers, Varta batteries, industrial grade silencers, Cummins engine, DSE (Deep Sea Electronics) control panel with LCD Screen, Fleetguard filters, alternator, battery charger and coolant heater all fitted as standard. 

A heavy-duty skid surrounds the base mounted 1250 litre diesel fuel tank. There are  fork lift ports running through the base and there are hook eyes on each corner for ease when transporting or lifting into position.  

Low Fuel Consumption

This version will run for over 23 hours at 100% load, and 46 hours running on 50% load (based on prime power rating). Red diesel can be used to save on running costs without affecting the warranty. The fuel gauge can be easily read and is mounted internally.  

The Deep Sea Electronics Control Panel (DSE)

All Evopower diesel generators use Deep Sea Electronics control panels that have been manufactured in the UK. The DSE6120 control panel comes complete with ATS (autotransfer) compatibility as standard. Meaning if ATS switchgear is installed, in the event of a power cut your Evopower generator will start up. Giving you the security that you will not be without power for long.

The control panel has a built-in USB port and the LCD screen displays and notifies you when the generator has;

  • Low oil pressure

  • High water temperature 

  • High or low voltage 

  • High or low frequency 

  • Engine over/under speed

  • Start/stop issues


Please note that there are certain regulations in certain areas and countries related to noise, fuel storage and emissions. Please make sure you order the correct generator for your region/location.




Manufacturer Evopower
Cooling Method Water-cooled
Phase Three Phase
Dimensions (L x W x H) 3992 x 1400 x 2500
Engine Manufacturer Cummins
Engine Model 6LTAA9.5-G3
Engine Oil 15w40
Max. Engine Speed (rpm) 1500rpm
Fuel Tank Capacity (l) 1970.00
Weight (kg) 3060.00
Warranty 2 Year conditional warranty
Alternator Type Genpower LK444DS
Continuous Power (kVA) 275.00
Continuous Power (kW) 220.00
Frequency (Hz) 50.00
Max. Power Output (kVA) 300.00
Max. Power (kW) 242.00
ATS Port Yes
Current (A) 434.50
Features Emergency Stop, Forklift Pockets in Skid, Low Battery Volts, Low Oil Level, Low Oil Pressure, Safety Monitoring , Weatherproof Canopy
Frequency (Hz) 50.00
Voltage (V) 400v
Voltage Regulator AVR
Prime Power (kW) 220.00
Standby Power (kW) 242.00
Noise (dB @ 7m) 70.00
Fueled/Driven by Diesel
Maximum Run Time (hr) 15.3hrs @ 50% Load
Starting Method Electric

We're working hard to ensure that all orders are unaffected by recent events whilst keeping our team as safe and well as possible. We urge our customers to follow the latest advice and to stay alert and to stay at home as much as much as possible. We are working closely with our couriers to ensure there is little to no delay in deliveries. Our current courier performance is 3 - 10 days, please be aware that when we despatch goods into the TNT network, we provide you with a tracking number. This tracking number only becomes active on the TNT portal when the goods are scanned into the Central Distribution hub in the Midlands. As of 27.05.2020 there is a 2-5 day delay getting goods into the hub. 

We provide FREE SHIPPING to mainland UK. Pricing for extended shipping areas like Northern Ireland, the Scottish Highlands and outlying Islands (Outer Hebrides, Channel Islands, Isle of Man, Scilly Isles, etc) can be found on the map below.

For full shipping and delivery terms and conditions, please click here.

The Powersite Delivery Map
NB. Carriage is also chargeable on all parts and items under £100 in value, and our sales team may contact you for after a sales order has been made if additional carriage surcharges need to be applied.

Write Your Own Review

You're reviewing: 300kVA Long Run Cummins Powered Diesel Generator by Evopower | UKC300ECO-LR

How do you rate this product? *

1 1 star
2 2 star
3 3 star
4 4 star
5 5 star

Do You Have Any Questions?

* required fields

Brands Stocked by ThePowerSite
We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more .