No liquid, no leak or fire-fluid risk: the reference for indoor and sensitive sites — data centers, public buildings, hospitals.
• 100 – 3,150 kVA • Class F1 • IEC / EN 60076-11 • Tier 2 • Delivered in 15–18 weeks
The windings are encapsulated in epoxy resin instead of being immersed in a liquid, and cooling is by air. The result: no flammable fluid, no risk of leak or pollution, reduced maintenance. It is the reference for indoor and sensitive locations — data centers, buildings open to the public (ERP), hospitals, basements — wherever fire safety takes priority.
| Power | Impedance | Behaviour classes | Indicative mass |
|---|---|---|---|
| 250 kVA | 6 % | F1 · E2 · C2 | ≈ 1.1 – 1.4 t |
| 630 kVA | 6 % | F1 · E2 · C2 | ≈ 1.9 – 2.3 t |
| 1,000 kVA | 6 % | F1 · E2 · C2 | ≈ 2.6 – 3.1 t |
| 1,600 kVA | 6 % | F1 · E2 · C2 | ≈ 3.6 – 4.2 t |
| 2,500 kVA | 6 % | F1 · E2 · C2 | ≈ 5.2 – 6.0 t |
Basis: cast resin class F (155 °C), AN (forced-air optional), Dyn11, 50 Hz. Classes F1 · E2 · C2 per IEC/EN 60076-11. Indicative pre-sizing values — confirmed at quotation.
F1 — flame-retardant, self-extinguishing (the class required in most ERP and public buildings). E2 — withstands severe condensation and pollution. C2 — operable down to −25 °C. This F1·E2·C2 combination is the usual specification for demanding indoor environments.
At equal rating, generally yes — the tank and oil of an immersed unit damp vibration. A well-designed, well-installed dry-type is nevertheless fully compatible with a tertiary environment; a noise level can be specified.
Yes — no fluid to sample or top up. Periodic inspection and keeping the cooling paths clear are the essentials. This is part of why it is favoured for hard-to-access indoor installations.
F1 is the flame-retardant class expected in public buildings and sensitive sites; the full F1·E2·C2 set covers condensation, pollution and cold. We confirm the class against your project.
Tell us your indoor constraints — fire class, environment, footprint. First reply within 48 h.
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