web supervisor
Picture of Onis Visa gensets Picture of Onis Visa gensets Picture of Onis Visa gensets Picture of Onis Visa gensets Picture of Onis Visa gensets

ONIS VISA Power Generators & Motorpumps

Visa SpA is a company dedicated on design, production, sales and rental
of generating sets, motor pumps and power solutions.


With star the start of each of the three phases is connected together. Connections are taken from the ends of the three phases to give the three phases
Star symbol voltage


With Delta the starts and ends of the phases are connected. The end of phase 1 is connected to the start of phase 2, the end of phase 2 to the start of phase 3, and the end of phase 3 to the start of phase 1. Connections are taken from the three start-end points to give the three phases.
Delta symbol voltage

Company profile

Visa S.p.a. is a leading Italian company that has been successfully present in the market since 1960, projecting and manufacturing highly technological generating sets and power stations. With its network currently present in more than 80 countries in the world, Visa SpA offers the most suitable solutions with a high standard of quality and technology in many areas and countries. "ONIS VISA" gensets and power stations, ranging from 9.0 to 3.000 kVA, are completely manufactured in Italy and offer the best technological and quality features. Thanks to a research and development team of engineers, who are completely dedicated to projecting customized solutions and developing special and sophisticated projects for more complex applications, Visa SpA can support its clients assuring the highest quality solutions.

Discover the company

Competence sectors

Visa SpA provides high-tech solutions that can be tailored to all situations and sectors: from telecommunications to construction and engineering, industry, as well as hospitals, retail and entertainment, just to name a few. Beside the complete standard range, Visa SpA manages to offer more sophisticated generating sets for more complex applications. Onis Visa generators, with their many variants, are among the most versatile and complete in the market, competing with a world that is increasingly more orientated towards electricity generation.
Telecom |  Onis Visa Generators
With over 50 years of experience in the energy market, Visa SpA offers a range of products designed to meet the needs of the Telecommunication sector, one of the most...
Data Centers |  Onis Visa Generators

In an increasingly virtual world where exchange of critical information is getting more and more important, data centers demand an extremely reliable and constant...

Defence and Civil Aid |  Onis Visa Generators

The Onis Visa Gensets for military use are designed to meet the requirements of forces operating in harsh environments and built to a very demanding specification....

Industry and Services |  Onis Visa Generators

Visa SpA provides reliable and high-performance gensets and energy solutions. In manufacturing plants, even a small power outage could lead to hours of costly...

Tourism and Big Events |  Onis Visa Generators

Recent severe weather events have resulted in serious hurricanes, tropical storms, heavy snowfalls, strong hurricane-force winds and widespread storm surges and...

Large Scale Retail |  Onis Visa Generators

Businesses lose money when they shut down during a blackout. Even a small power failure could lead to hours of costly downtime. Considering the impact of significant...

Power Stations |  Onis Visa Generators

Power stations are used for small scale production of electric power, and where there is no other easily available alternatives of producing electric power. Diesel...

Power supply systems |  Onis Visa Generators

In case of a sudden and unexpected power failure many things can go wrong but thanks to Onis Visa generating sets, power supply is not a problem at all. Lost revenue...

Latest products

Onis Visa range of products has grown in order to provide an answer to all market requirements; it offers a comprehensive range of quality-assured, versatile and high-tech energy solutions which can be tailored to all situations. Beside high-quality generating sets, also different types of control panels, accessories and spare-parts are available, in standard or customized versions.
Advanced single gen-set controller for stand-by and prime power applications. Direct communication with EFI engines, total remote monitoring and control, easy to install, configure and use, wide range...
cricket generating sets


1- Industrial diesel engine in genset version with certificate of origin
2- Industrial brushless alternator with AVR
3- Steel baseframe, fuel tank with level sensor
For over 35 years, Visa S.p.A. has been designing and developing energy solutions for the telecommunications industry. Transceiver stations (or BTS) are key components of any network, since they...

The range of Dry-Prime motorpumps are built for pumping water with solids holdup, containing sand or other abrasive solids in suspension. The special design makes these pumps suitable for different applications where unclean liquid pumping and water displacement are necessary.

Other sectors

Visa SpA also provides services and products in sectors others than standard electricity generation, such as rental and water, through specific divisions and trademarks. Thanks to that production diversification, Visa SpA has managed to acquire an important know-how in different areas, giving way to new ideas and project development.

Rental Division

Rental Division

Sometimes depending on power gensets with ultimate reliability is crucial to sustain power supply to the most sensitive operations in the most demanding conditions. Onis Visa fleet of 300 sound-attenuated generators of recent production ranging from 9.0 to 2000.0 kVA, are designed and developed to deliver a high quality service for non-stop power performance, all of them equipped with safety features that comply with the strictest regulations and standards. Different versions are available to meet your every need. Amongst the services available, Visa SpA provides dedicated consultation for projects’ study and development, as well as it grants crane trucks for the delivery and...

call:+39 0422 818633
Get a quote

Water division

Visa SpA, through its trademark Nettuno®, has successfully been present in the water treatment sector for over 40 years, offering self-propelled irrigation systems and high quality motor pumps for agriculture and industry. The reliability and versatility of Onis Visa products are due to the use of the best components and latest technology which gives high performance as well as savings in operating costs. The experience gained in the entire world, under the most different and difficult environmental conditions, allows to completely satisfy all the modern agriculture needs, in compliance with environmental respect and following the strictest standards. Visa SpA provides high-...

Discover the products
Get a quote

Latest news

Visa SpA will be exhibiting at Power-gen International, taking place December 4-6, 2018 at the Orange County Convention Center in Orlando, FL, USA.

What a great occasion to meet face to face, speak about opportunities in the power generation market and catch up.

VISA SPA will be attending the POLLUTEC 2018 exhibition, the International trade show for environmental equipment, technologies and services, that will be held in Lyon, France from 27th to 30h November at the EUREXPO Exposition Park.

Also this year, VISA SPA will be exhibiting at the EIMA SHOW, the biennial International Exposition of Machinery for Agriculture and Gardening, taking place in November 7-11, 2018 at the Trade Fair quarters in Bologna, Italy.

Also this year Visa SpA wil be participating to "Hotel 2018", the exhibition specifically dedicated to the hotel and restaurant sector.

From 15th to 18th Otober 2018, it will be held in Bozen, in the heart of South Tyrol.

VISA S.p.A. in numbers

infografica 2018
newsletter subscription
facebook like