Solutions in High End Power Protection

Piller is a global leader in power protection equipment for mission-critical power applications. Founded in Hamburg in 1909 by Anton Piller, in 1919 the company moved to its current headquarters and production site in Osterode am Harz. Today, Piller has a second production facility at nearby Bilshausen. In addition, Piller has sales and service subsidiaries in Europe, North and South America, Australia, and Middle East.

The company employs around 1000 people worldwide. Its clients include many of the world's leading banks and financial institutions, data centres, broadcasters, telecom operators and government organisations. Piller is a subsidiary of the diverse, privately owned engineering and industrial group, Langley Holdings plc


The UNIBLOCK™ is a key contributor in providing seamless power to your business systems and processes, providing independence from utility power and disturbances on the supply network. UNIBLOCK™ simply provides confidence in delivering business on schedule day after day, year after year. Every Piller rotary UPS at heart has the UNIBLOCK™ rotary machine. The UNIBLOCK™ is a system with millions of reliable field operation giving high efficiency and performance with minimum components.

Static UPS from 2kW up to 360kW

Data centres, automated production plants and other critical applications make high demands on UPS systems as power supply failures can have catastrophic results. Non-linear loads therefore have to be handled as safely as shock loads and overloads such as those caused by power surges.

Static Transfer Switch 25A up to 1600A

Suitably designed UPS systems are a permanent part of the building structure and involve a high level of investment therefore there is no room for compromise when it comes to the security and economy of your UPS. The APOSTAR Static UPS product range meets the highest requirements of a secure power supply and at the same time is very economical.

Battery-Free Solutions

Piller is a market leader of kinetic energy storage ranging from 3.6MJ up to 60MJ+ per unit. The Piller POWERBRIDGE™ and Active Power CleanSource® storage systems have unique design techniques employed to provide high energy content with low losses. These energy stores can be configured singularly or in parallel with a variety of Piller UPS units to facilitate a wide range of power-time combinations. Piller’s Critical Power Module (CPM) has been designed with the needs of the modern data centre in mind, allowing designers maximum creativity for modular solutions where the need for space-saving and minimised service intervention is paramount.

Critical Power Modules (CPM) with Flywheel 225kW up to 2.4MW

The Piller Critical Power Module (CPM) topology is designed to deliver optimum performance combined with all of the operational features demanded by the modern data centre. The module houses its own energy storage with sufficient guaranteed capacity for delayed transition to standby generators. Capable of operating in up to four different modes, the CPM affords the perfect balance between required levels of protection and electrical efficiency.

Frequency Converters

For over 30 years Piller has supplied ground power systems for both military and civil applications. Through continual research and development of our products we guarantee a high level of flexibility in meeting clients' demands, however complex