10 kW Three-Phase Generators

Three-Phase Power Generator 10 kW — 400 V Output and Applications

A three-phase generator set is a unit in which the engine drives an alternator that delivers current across three phases in a 3×400 V + N configuration at 50 Hz, unlike a single-phase generator, which supplies only 230 V on one phase. A 10 kW rated output corresponds to an apparent power of roughly 10-12.5 kVA (cos φ about 0.8) — enough to run several three-phase loads at once, with a combined draw of up to about 8-9 kW.

This power class fits sites where the machine fleet needs 400 V: free-standing concrete mixers, table saws, screw compressors or submersible pumps. We carry it primarily from Fogo — see the brand on the Fogo page, and browse the full 400 V range in the three-phase 400 V generators category.

Three-Phase 10 kW vs Single-Phase — the Practical Difference

A single-phase 230 V generator supplies current on one phase and powers domestic sockets and single-phase tools, typically up to 5 kW. A three-phase generator produces voltage across three phases (3×400 V), so it drives three-phase motors and also has standard 230 V sockets — provided the load stays balanced across all three phases, since an uneven draw shortens the life of the alternator windings.

Types of Three-Phase 10 kW Generators

Within the 10 kW three-phase class, generators mainly differ in frame, drive and control equipment. The right choice depends on whether the unit runs occasionally on site or continuously as backup power for a building.

In the 8-10 kW three-phase class, diesel-driven units dominate, since they cost less to run than petrol models. Check the exact drive and equipment on the model's page — for example the Fogo FV three-phase generator. For a wider choice of outputs, see the three-phase 400 V generators category.

Sizing a 10 kW Generator to Your Construction Site

Output is sized to the sum of devices running at once, plus a 20-30% reserve for the starting current of induction motors. A 10 kW generator (10-12.5 kVA) sits mid-range for a construction site — 8-15 kW three-phase.

Adding up several such loads, a 10 kW generator typically covers 3-4 devices running in parallel — for a larger fleet, check higher outputs in the three-phase 400 V category.

400 V Connection — Electrical Installation Requirements

A three-phase 10 kW generator connects via an industrial 400 V socket, typically rated 32 A, compliant with EN 60309. The receiving installation must have a residual-current device and a working earth for the generator — without earthing, shock protection won't work correctly. An AVR (automatic voltage regulator) holds the voltage within ±5%, and the three phases should be loaded evenly, since an imbalance above 10-15% shortens the life of the alternator windings.

If the generator is to supply a building's installation rather than individual devices, it needs an ATS (automatic transfer switch) module fitted by a licensed electrician.

Frequently Asked Questions About Three-Phase 10 kW Generators

Why Buy a Three-Phase 10 kW Generator at NORWIT.PL

We carry three-phase 10 kW power generators primarily from Fogo — a Polish manufacturer with domestic warranty service and parts availability. We advise on matching output to your site's machine fleet, drive type and 400 V connection requirements. For a different output in the same voltage class, browse the three-phase 400 V generators range. We fulfil orders online, with shipping nationwide.