As market leader in various high-voltage test products we provide the test, measurement and diagnostic equipment for a wide range of electrical applications. Test systems for laboratory, factory and field use are available. As a single source supplier we unify powerful resources from design, development, engineering, marketing and support - from high-voltage design over electronics to software in one company.  Precision. Swiss Made. Since 1904. 


We are pleased to officially unveil our new logo.


The new logo is more than just an image change. Haefely Test AG and Hipotronics, Inc. have joined forces to becomeone global organization that is stronger than ever.

The quality and strength of HAEFELY HIPOTRONICS high voltage products and services are not changing. What is changing is the increased level of coordination and streamlined processes between both companies to exceed customer expectations - above and beyond the current state.

In sum, what stands behind this new identity is over a century of combined experience in the fields of test and measurement. HAEFELY HIPOTRONICS now looks to the next 100 years of high-motivated engineering teams, global field service engineers, and manufacturing departments.

To read more about our new logo, evolutionary history of brands, and what our customers are saying about us.

                      read more


New insulation diagnosis set - MIDAS micro 2883 

Tettex expands its family of insulation diagnosis sets with the new model MIDAS micro 2883. The weight of only 25 kg / 55 lbs and the one box design makes it the ideal tool for power / dissipation factor / tan δ and capacitance testing in the field and in the factory.

product brochure

New RSKF Product Line - On Site Cable Test Sets  

On site withstand voltage testing is an essential part of a cable laying and commissioning project. Testing on site is a check of proper assembly of cable and accessories together. The new RSKF series of on site cable test systems is based on the latest of frequency converters and fixed gap core, variable frequency reactors. Major highlights of the product line are: an easy & fast test set up, some series connections can be setup without the need of a crane for reactor offloading. System uses state of the art technology such as wireless temperature sensors and active cooling even for reactors with live tanks, enabling excellent thermal management ensuring maximum operational safety and system longevity.

product brochure

NEW DDX 9121b

We are proud to announce the release of our new DDX9121b – Modular partial discharge measuring System.

 The DDX 9121b partial discharge (PD) detector is the latest in the DDX family of PD   detection equipment.

read more

New Global service Platform

Haefely reaffirms their commitment to keeping the customer's equipment well serviced with the opening of a brand new service platform.

Global Services Leaflet

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