TET ESTEL is a European engineering company specializing in advanced power electronics and converter systems for demanding applications.

With over 155 years of engineering heritage and decades of experience in power conversion, we design and manufacture reliable solutions for aviation, industry, transport, marine, and infrastructure projects worldwide.

⚙️ Our portfolio

• Solid-state, hybrid-diesel, and battery-powered (eGPU) 400 Hz Ground Power Units (GPU)
• Aircraft rectifiers (28 VDC)
• Frequency converters
• Industrial power conversion systems
• Power semiconductor solutions

⚙️ What sets us apart

• Engineering-driven approach — not just manufacturing
• Designed and built in the EU (Estonia)
• Proven reliability in demanding and critical environments
• In-house testing and full Factory Acceptance Testing (FAT)
• Custom engineering & turnkey solutions

🌍 Industries we serve

Aviation • Electrothermy • Power Semiconductors • Electric Drives • Transport • Marine

🤝 Let’s work together

We collaborate with system integrators, contractors, and end-users worldwide.

If you're working on demanding power applications — we are ready to support your project.

TET ESTEL

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TET ESTEL

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