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A leader in electrical strength testing, insulation measurement and cable testing

  • Logo RATP noir et blanc | RATP black and white logo | RATP‑Logo in Schwarz‑Weiß
  • Logo SNCF noir et blanc | SNCF Black and white logo | SNCF‑Logo in Schwarz‑Weiß
  • Logo Rolls-Royce noir et blanc | Rolls-Royce black and white logo | Rolls-Royce‑Logo in Schwarz‑Weiß
  • Logo Alstom noir et blanc | Alstom logo blakc and white | Alstom‑Logo in Schwarz‑Weiß
  • Logo Airbus Helicopters noir et blanc |  Airbus helicopters black and white logo | Airbus Hubschrauber‑Logo in Schwarz‑Weiß
  • Logo Naval group noir et blanc | Naval group black and white logo | Naval group‑Logo in Schwarz‑Weiß
  • Logo BMW noir et blanc | BMW black and white logo | BMW‑Logo in Schwarz‑Weiß
  • Logo RATP noir et blanc | RATP black and white logo | RATP‑Logo in Schwarz‑Weiß
  • Logo SNCF noir et blanc | SNCF Black and white logo | SNCF‑Logo in Schwarz‑Weiß
  • Logo Rolls-Royce noir et blanc | Rolls-Royce black and white logo | Rolls-Royce‑Logo in Schwarz‑Weiß
  • Logo Alstom noir et blanc | Alstom logo blakc and white | Alstom‑Logo in Schwarz‑Weiß
  • Logo Airbus Helicopters noir et blanc |  Airbus helicopters black and white logo | Airbus Hubschrauber‑Logo in Schwarz‑Weiß
  • Logo Naval group noir et blanc | Naval group black and white logo | Naval group‑Logo in Schwarz‑Weiß
  • Logo BMW noir et blanc | BMW black and white logo | BMW‑Logo in Schwarz‑Weiß
  • Logo RATP noir et blanc | RATP black and white logo | RATP‑Logo in Schwarz‑Weiß
  • Logo SNCF noir et blanc | SNCF Black and white logo | SNCF‑Logo in Schwarz‑Weiß
  • Logo Rolls-Royce noir et blanc | Rolls-Royce black and white logo | Rolls-Royce‑Logo in Schwarz‑Weiß
  • Logo Alstom noir et blanc | Alstom logo blakc and white | Alstom‑Logo in Schwarz‑Weiß
  • Logo Airbus Helicopters noir et blanc |  Airbus helicopters black and white logo | Airbus Hubschrauber‑Logo in Schwarz‑Weiß
  • Logo Naval group noir et blanc | Naval group black and white logo | Naval group‑Logo in Schwarz‑Weiß
  • Logo BMW noir et blanc | BMW black and white logo | BMW‑Logo in Schwarz‑Weiß
  • Logo RATP noir et blanc | RATP black and white logo | RATP‑Logo in Schwarz‑Weiß
  • Logo SNCF noir et blanc | SNCF Black and white logo | SNCF‑Logo in Schwarz‑Weiß
  • Logo Rolls-Royce noir et blanc | Rolls-Royce black and white logo | Rolls-Royce‑Logo in Schwarz‑Weiß
  • Logo Alstom noir et blanc | Alstom logo blakc and white | Alstom‑Logo in Schwarz‑Weiß
  • Logo Airbus Helicopters noir et blanc |  Airbus helicopters black and white logo | Airbus Hubschrauber‑Logo in Schwarz‑Weiß
  • Logo Naval group noir et blanc | Naval group black and white logo | Naval group‑Logo in Schwarz‑Weiß
  • Logo BMW noir et blanc | BMW black and white logo | BMW‑Logo in Schwarz‑Weiß
The ergonomics and ease of use of the products are excellent and help in saving time.
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Aerospace client

Source: 2025 Satisfaction Survey

It’s a real pleasure working with the support team. They are always reactive.
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Electronic component manufacturer client

Source: 2025 Satisfaction Survey

The team is always available to answer highly specialized and very technical questions.
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Railway Client

Source: 2025 Satisfaction Survey

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Sefelec is recognized as a key player in dielectric strength testing, insulation measurement, and automatic cable test systems.

For more than 60 years, we have supported companies in the aerospace, railway, defense, and automotive industries to ensure the reliability of their sensitive equipment and the safety of their operators. Over the past 10 years

Test points deployed
707 400
Projects completed
21 722
Customers who trust us
10 980

Contact our experts

Need help to use our product?

Our support team is available to guide you, diagnose issues, and optimize your equipment.

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We assist you in selecting, integrating, and upgrading your test solutions.

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