Construction and rental
50 kVA diesel generator
Rated output: 50 kVA · Approx. 40 kW at PF 0.8 · Voltage: 400 V / 50 Hz
50 kVA generators are among the best-selling outputs for construction projects, agricultural operations and equipment rental. The 40 kW output (at PF 0.8) covers an entire agricultural building, a medium-sized site or a small production shop. Stationary and trailer-mounted executions are available.
Duty types
PRP and ESP are not interchangeable
ESP — standby power
Emergency operation during grid outages at variable load. The rating applies to limited-hour standby duty, not continuous running.
PRP — prime power
Variable continuous operation as the main power source. A prime rating is lower than the standby rating of the same unit and is confirmed per engine and application.
Tell us the intended duty when you inquire — the required rating (PRP or ESP) for your 50 kVA project is confirmed during sizing, never assumed.
Typical use
Typical applications for a 50 kVA generator
Building sites
Power for plant, welders, pumps, cranes and temporary site offices.
Agriculture
Backup for farms, cowsheds, greenhouses and cooling equipment — protecting crops and livestock.
Rental fleets
The most popular rental output — universal use at events and on sites.
Small workshops
Backup for workshops, joineries, garages and small industrial operations.
Events and festivals
Stage equipment, lighting and catering power for outdoor events.
Emergency operations
Rapidly deployable backup for crisis teams, field hospitals and emergency services.
Available brands
Manufacturers available at 50 kVA
AKSA
20–3000 kVAPrimary brand of ESKO Generator — authorised dealer for the Czech Republic and Slovakia; other brands are available depending on the project.
Ask about AKSA 50 kVAHimoinsa
6–3000 kVASpanish manufacturer with a strong presence in the EU; quiet executions, with Stage V available on selected models subject to model confirmation.
Ask about Himoinsa 50 kVAEnergy Gruppi
10–3000 kVAItalian manufacturer specialised in industrial generators for energy projects and critical infrastructure.
Ask about Energy Gruppi 50 kVAInmesol
10–2500 kVASpanish manufacturer of trailer-mounted and stationary generators for construction, rental and industry.
Ask about Inmesol 50 kVATechnical options
Typical configuration of a 50 kVA generator
Automatic start (ATS)
Available on suitable models: automatic start on grid failure with changeover in about 10 seconds, without operator intervention.
Trailer-mounted version
Mobile variant road-homologated with a towing coupling and site anchoring — configuration confirmed per project.
Extended fuel tank
Tanks for around 24–48 hours of continuous operation depending on the model — practical for sites without daily attendance.
GPS and remote management
For rental applications, GPS locator and remote status reporting (running hours, alarms) where supported by the control unit.
All options above are project variants depending on the selected model and agreed scope — they are not universal features of every unit. Tank autonomy, sound levels, monitoring interfaces, HVO compatibility and paralleling are confirmed for the specific configuration in your quotation. All units come with the manufacturer's warranty.
By application
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Frequently asked questions
50 kVA — common questions
Is a 50 kVA generator the right size for my project?
A 50 kVA rating corresponds to roughly 40 kW of usable output at a power factor of 0.8. Check the sum of the loads you must keep running during an outage — lighting, pumps, compressors and essential machinery — and allow a reserve for starting currents.
Is 50 kVA a standby (ESP) or prime (PRP) rating?
Both duty types exist in this power class, and the numbers are not interchangeable: an ESP (standby) rating applies to emergency operation during grid outages, while PRP (prime) applies to variable continuous operation. Always tell us the intended duty — the required rating (PRP or ESP) is confirmed during project sizing, never assumed.
How quickly can a 50 kVA generator be delivered?
Ratings at this level are frequently held in stock. Confirmed warehouse units can be dispatched within 48 hours after the order, conditions and payment are closed — a dispatch time, not a delivery-time promise. Availability is always confirmed in your quotation.
Czech projects
Supply, design, commissioning or turnkey
For Czech customers we can deliver the generator alone, design the installation, commission it on a prepared site, or realize the project turnkey — with contracted service according to the agreed scope. The scope is clarified during consultation.
International
Direct sale, preferably EXW CZ/NL
International customers receive a direct generator sale, preferably EXW CZ/NL, with transport arranged individually. Installation and service abroad are confirmed individually per destination and model.
Availability and dispatch
Availability depends on the rating — the current stock list starts at 25 kVA ESP, and availability of the requested rating is confirmed in your quotation. Confirmed warehouse units can be dispatched within 48 hours after the order, conditions and payment are closed — a dispatch time, not a delivery-time promise. The current stock list covers models that are in stock or in transit.
Non-binding consultation
Ask about a 50 kVA generator
Describe your project — our engineers will verify the sizing, confirm the required PRP or ESP rating and prepare a technical proposal with a tailored quotation.