We are a leading manufacturer and supplier of uninterruptible power supply systems, as well as remote monitoring and supervisory systems. We provide the full range of services, starting from the definition of customer needs, through analysis and design, to equipment delivery and system implementation. Additionally, we support our customers with aftersales service, consulting and training.

Telzas is a part of a dynamically growing ETC Group. Our solutions were successfully implemented in telecommunications, IT, Internet services, data transmission, energetics  


We offer the design & manufacture of power supply and supervisory systems adjusted to individual needs of the clients. Over 30-year experience and individual approach to each client enable us to produce solutions that meet the requirements of our customers.

We offes services in area of up to 1kV (AC or DC) on sites in different phases of realization (renovated, exploited, newly built) in area: designing and consulting of technical documentation, power supply systems (including hybrid solutions: PV panels, wind turbines), HVAC, AC and DC distributives, remote monitoring 


Delivery of the first hydrogen fuel cell power system in T-MOBILE Poland

In December 2022, we installed the first hydrogen cell power system in Poland. The FC-01 system works within the technical infrastructure of T-MOBILE. The installation is unique in that it has not been seen before as part of any mobile operator network in Poland. TELZAS was the supplier of the solution for T-MOBILE. more icon

SPX500 - power supply system dedicated to broadband networks

Due to the increased demand for DC 48V power in the backbone nodes of the broadband network, there was a need to expand the existing power supply infrastructure. The subject of implementation is the supply and installation of SDX 500 power supply systems. more icon

New products

Technical Protection System (SOT)

Technical Protection System (SOT)

We have introduced in our offer SOT (Technical Protection System) is a solution based on telemetry and remote monitoring systems that detect threats in a distributed technical infrastructure containing hundreds of objects and thousands of devices, events and measured values.
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The Q1 control unit

Q1 control unit

We have introduced a new Q1 controller to our offer - a modern solution that uses advanced methods of control and supervision of power systems.
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