Made in germany



More than 100 years of experience in the manufacture of innovative measurement systems.

Much has changed, developed and improved over the years – but our traditional values have been maintained!



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 ∙ Type EZD-S0

Energy meter for three-phase current for current transformer connection or for direct connection.

 ∙ Type EZG-TCP

Energy meter for DC for indirect current measurement.


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New cell phone numbers


If the phone malfunctions, you can also contact us at the following mobile numbers.


Headquarters +49 151 29199463

Sales +49 151 28101798


Find out more here…


Electrical and electronic measuring devices with a quality guarantee

Highly precise measurements are crucial in electrical engineering – this is equally true in the construction of plants, machinery or engines but also especially in the field of energy production and distribution: from the smallest photovoltaic system through to complex wind turbines, every energy producer needs accurate electrical measuring devices to monitor the efficiency of the system and detect any faults as quickly as possible. Müller + Ziegler supplies measuring devices, measuring transducers, energy meters, current transformers and shunts for your company – and also implements individual solutions to specific problems with speed and flexibility. 


Quality measuring equipment made in Germany

We have been producing measuring devices since 1911 and from day one have put great emphasis on production in Germany – thereby facilitating fast and loss-free communication between all teams, from development via production right through to marketing and sales. These short paths also allow us to implement complex special solutions for companies of any size. There is no such thing as a small client for us – we deliver even sample and test jobs quickly and reliably regardless of the quantity.


Our qualified and highly motivated employees are the basis of our success in the continuous further development of measuring devices, measuring transducers, power network monitors and energy meters for companies throughout the region, right across Europe and worldwide. We place great importance on sustainability and advancement – not just in production and processing but also in partnership with our customers, many of whom we have supported for decades.


We are your specialist for measurements in switching and power distribution systems

We have worked alongside diverse sectors of industry for decades, from shipbuilding, automation engineering and process control of complex systems right through to drilling rigs. All this has been achieved with minimal staff turnover – consequently we have vast know-how in measurement technology which we would be pleased to share with you in an extensive consultation at any time.


Our expertise combined with a state-of-the-art machine park and innovative manufacturing methods has for many years now allowed us to keep delivery times short and price fluctuations low. Therefore, no matter whether you need analogue or digital measuring devices, electrical measuring transducers, energy meters, limit value relays, current transformers or shunts, or whether you are a one-man operation or a global player in the car industry – we are a strong partner at your side.