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Mr. Benvenuto Barro founded the company in 1960 when he sensed that the increasing energy demands in certain sectors could be met with generating sets. In the 1980's, with the generational change from father to sons, Lorenzo and Marco, the company moved its interest and activities into foreign markets where seriousness, commitment and product quality have been rewarded globally over the course of 50 years. Visa works in 60 countries on 7 continents.
As of January 01, 2009 Visa moved into a new modern 34000sqm production facility, 17000sqm of which are for generating set assembly. The LEAN MANUFACTURING process is the philosophy and method for innovation processes. The system has been implemented in the VISA production cycle in order to improve work phases and reducing delivery times while maintaining elevated quality levels. The assembly islands have been organized according to genset size, designed to increase efficiency in line with...
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The best way to tell us is to talk to our customers. For this reason, in the References section you will find some of the most important customers for whom Visa SpA has produced products and maintained quality services over the years. TELECOMMUNICATIONS: DATA CENTERS: FINANCE: HOTEL CHAINS: LARGE-SCALE RETAIL TRADE: INDUSTRY: CONSTRUCTIONS - INFRASTRUCTURES - BUILDINGS: PUBLIC & DEFENCE AND CIVIL AID SECTOR:
The recent introduction of the new production process, Lean Production, has improved production efficiency and flexibility as well as increased each phase of quality control. This new production process includes the optimization of the working spaces according to the type of gensets that must be accommodated in the assembly area. The working areas appointed to medium/high power range gensets, have more room and access than the areas for lower power range gensets, all with cranes.
CERTIFIED SERIOUSNESS Since 1997, Visa is officially certified ISO 9000 and 2002 ISO 1400. In 2018, Visa was again inspected by official agencies, acquiring the upgrade certification to ISO 9001-2015 and ISO 14001-2015. Tailoring its production standards to international technical specifications combined with rigid product testing, has allowed Visa to become a world-wide symbol of efficiency and quality becoming the official supplier of the largest telecommunications companies in China,...
Visa S.p.A. has always focused its attention on the global market's needs, tailoring production and sales policies to economic changes. Particular emphasis is given to design with the objective of satisfying customer needs and developing a full range of products quickly maintaining high quality standards. Nowadays, VISA generators, with their many variants, are among the most versatile and complete in the market.
For more than an half-century the Visa SpA Group has been operating in the industrial production sector, faithful to its origins and to its mission: industrial vocation, business diversification, internationalization. Over the years the Visa SpA Group has grown to be a modern and dynamic economic reality, active in many different business sectors in order to ensure its stability and its presence in today’s global market. Strong commitment and continuous investments in innovation have ensured...
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...
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...


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
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