The loop impedance experts
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We are dedicated to loop impedance, with a clear focus on promoting education and practical measurement solutions in this key area of electrical safety. With us, you’ll find expert knowledge, professional consulting, and the right measuring instruments - all in one place.
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Earth fault loop impedance – calculating is silver, measuring is gold
Up until now, you’ve mostly calculated loop impedance. But today, it’s becoming increasingly important to verify those values in practice. Whether you’re inspecting the work of a subcontractor or documenting your own projects, practical proof helps you clearly and reliably demonstrate compliance with disconnection conditions - especially to clients, grid operators, and insurers.
If you're still unsure about this topic, our guide earth fault loop impedance calculation vs. measurement will help you gain a clear understanding.
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Testers
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The pages for our measuring instruments include
- Descriptions,
- Technical data,
- User manuals, data sheets, and declarations of conformity,
- Information about the scope of delivery
From each tester’s page, you can also access our device-specific guides, which explain how to carry out measurements using that particular instrument.
High-current testers for voltages up to 440V, 550V, 750V, 900V
Handheld testers for voltages up to 440V, 500V
Testers for voltages up to 750V
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Guide
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Understand earth fault loop impedance with our guide. Get a clear overview with our practical expert articles and device-specific measurement guides.
