300 kVA Generators for Sale
Discover the unrivalled power and performance of Generator Warehouse’s 300kVA generator lineup. Engineered for the most demanding industrial environments, major construction projects, and mission-critical backup power systems, our diesel generators combine cutting-edge technology with heavy-duty construction to deliver reliable, efficient, and sustainable power solutions for business backup power applications.
300 kVA quick specifications: A 300 kVA diesel generator gives about 240 kW of prime power and around 264 kW on standby. At 400V three phase it supplies roughly 433 amps per phase. Typical fuel use is about 33 to 60 litres an hour depending on load. Sets this size suit large construction sites, warehousing, cold storage, healthcare facilities, data centres and industrial backup. New prices are typically around £30,000 to £45,000 ex VAT, although engine, alternator, canopy, controls and installation affect the final quote.
Read MoreShowing all 11 results
300kVA Generators for Sale UK
Discover the unrivaled power and performance of Generator Warehouse’s 300kVA generator lineup. Engineered for the most demanding industrial environments, major construction projects, and mission-critical backup power systems, our generators combine cutting-edge technology with heavy-duty construction to deliver reliable, efficient, and sustainable power solutions for your most challenging applications.
A 300kVA generator provides serious power capacity for large commercial operations, industrial manufacturing plants, hospitals, data centres, hotels, shopping centres, and major infrastructure projects. These robust diesel sets deliver dependable performance for both critical standby applications and continuous prime power generation. At Generator Warehouse, we stock premium 300kVA models from industry-leading manufacturers including Cummins, Perkins, and FG Wilson.
Our 300kVA diesel generators are available in both soundproofed canopy enclosures for urban installations and noise-controlled environments, and open-frame configurations for industrial sites where acoustic attenuation isn’t a priority. Each unit can be specified with automatic transfer switching, synchronisation for parallel operation, remote monitoring capabilities, and advanced load management systems.
Built to deliver consistent performance under the most demanding conditions, 300kVA generators excel in applications requiring robust, fuel-efficient power generation. They’re commonly deployed to protect critical infrastructure in healthcare facilities, maintain continuous production in manufacturing plants, power large temporary installations on major construction sites, and provide backup for commercial properties where business continuity is absolutely essential.
What applications are best suited for a 300 kVA generator?
A 300 kVA generator is well-suited for large commercial facilities, data centres, and critical infrastructure that require a reliable power source. It can provide backup power to hospitals, universities, large retail stores, and office complexes. In data centres, a 300 kVA generator ensures that servers and other critical IT systems remain operational during power outages, preventing data loss and maintaining business continuity. Smaller facilities may find a 200kVA or 250kVA generator sufficient, while larger operations often require 400kVA or 500kVA generators.
How does a 300 kVA generator handle peak loads?
A 300 kVA generator is designed to handle peak loads efficiently, thanks to features such as overload protection and high starting capacity. It can manage short-term surges in power demand without compromising performance or risking damage. This capability is particularly important in applications where power demands can spike suddenly, such as during the startup of heavy machinery or the simultaneous use of multiple large appliances. If your facility regularly experiences significant peak demands, you may wish to consider a 350kVA or 450kVA generator for additional headroom.
How many kW is a 300 kVA generator?
At a typical 0.8 power factor, a 300 kVA generator provides about 240 kW of prime power. Standby power is commonly around 264 kW, but the exact rating should be checked on the chosen model’s datasheet.
How many amps does a 300 kVA generator supply?
At 400V three phase, a 300 kVA generator supplies about 433 amps per phase. This is a guide only: a qualified electrician should confirm cable, switchgear and protection sizes for the installation.
How much fuel does a 300 kVA generator use per hour?
A diesel generator of this size typically uses about 33 to 60 litres an hour, depending on load. Treat this as a planning range rather than a model-specific figure and check the selected generator’s fuel-consumption curve for an exact estimate.
How much does a 300 kVA generator cost?
Indicative new prices are commonly around £30,000 to £45,000 ex VAT. Engine and alternator brand, acoustic canopy, control panel, fuel tank, delivery, commissioning and installation can all change the final quote.
What can a 300 kVA generator power?
This size is commonly used for large construction sites, warehousing, cold storage, healthcare facilities, data centres and industrial backup. The right choice still depends on the total running load and the starting current of the largest motors or equipment.