自1981年3月成立以来，美国电力转换公司（APC）从关键电源保护领域产品的领先供应商发展成为关键电源及制冷领域产品和解决方案的全球领先供应商，服务于住宅、数据中心和网络、建筑及工业市场。美国电力转换公司（APC）品牌在全球已成为顶级电源、制冷和管理解决方案的代名词。2007年2月14日，施耐德电气收购了美国电力转换公司（APC）。通过将APC与MGE合并，施耐德电气一跃成为单相UPS系统市场的领导者（APC），三相UPS系统的市场领导者（MGE），以及关键电源和制冷市场的顶尖解决方案供应商。

美国电力转换集团 (APC) 可为防止一些重大宕机故障、数据丢失及硬件故障提供保护：电源和温度方面的问题。作为网络关键物理基础设施 (NCPI) 解决方案的全球领先者，APC 设定了产品质量、创新和技术支持的行业标准。其完整的解决方案适合国内外公司环境，可提高敏感电子设备、网络通信设备及各种工业设备的易管理性、可用性和性能。

APC总部位于美国罗得岛西金斯敦，在全球拥有销售分部并在三大洲拥有制造厂。同时，APC 的全球工作团队在努力工作赢得客户满意。为完成这一使命，公司集中在四个主要应用领域展开工作：家庭/小型办公室；商务网络；数据中心和设施；接入供应商网络。

以提供优质、创新产品及业内领先服务和技术支持著称，APC 可能是业界获奖最多的公司。通过迅速提供解决用户的实际问题的创新解决方案，来改善信息和通信系统的可管理性、可用性和性能，从而使用户满意。

2007年2月APC被施耐德电气收购，现名APC By Schneider Electric即施耐德电气旗下的APC。

The American Power Conversion™ Corporation was started in a garage in 1981. Through years of innovation, we’ve grown to be a flagship brand of Schneider Electric™, and the industry leader in physical infrastructure and software solutions.

For nearly four decades, APC has become the industry-standard for reliable power and physical IT infrastructure. Now the leading name in IT departments large and small and among our vast community of channel partners, our history of innovation has pushed our products into the global spotlight with infrastructure, management, and data security solutions protecting organizations around the world.

Incorporated in 1981, the American Power Conversion Corporation was established with a focus on research and development of solar electricity. Formed by three electronic power engineers from MIT, APC then opened a Rhode Island-based manufacturing facility in 1986; the company also produced its first UPS that year, the 450AT+, which received a PC Magazine 'Editor's Choice’ award. In 1988, APC stock was made available for public trade.

1989 brought the introduction of the award-winning PowerChute® software which revolutionized power management; as well as product sales through two major distributors, Tech Data and Ingram Micro. In 1990, APC continued to introduce superior products such as the Smart-UPS® line, now recognized as the industry's premier network power protection solution. That same year President and CEO, Rodger B. Dowdell, Jr., was named New England ‘Entrepreneur of the Year’ by Inc. Magazine.

Throughout the 1990s APC entered other markets with 155 new products such as SurgeArrest® surge protectors; Matrix-UPS®, the industry's first modular UPS; a new generation of Smart-UPS; the company's first Back-UPS Pro® models; and the Symmetra® Power Array™ which revolutionized the industry with redundancy, scalability and serviceability in a single solution. These product developments, the opening of two international manufacturing facilities (Galway, Ireland in 1994 and the Philippines in 1996), as well as the acquisition of Systems Enhancement Corp. and Silcon A/S, drove APC's annual revenue above the $1 billion milestone in 1998.

APC entered the residential tech market in 1999 with PowerShield, a solution for the growing broadband needs of cable and fixed wireless applications in homes. The company then launched into the new millennium with three strategic acquisitions opened the DC-power market for communications equipment; the cable and connectivity market for home and business IT applications; and the precision cooling market for data centers and communications equipment. After acquiring ARRIS in 2001, APC further expanded its broadband networking power capabilities. In 2002, APC introduced PowerStruXure™, its first piece of network-critical physical infrastructure (NCPI) architecture, which revolutionized data center power management. That same year, the company was named to the NASDAQ-100 Index, a list of the 100 largest non-financial stocks on the market.

In 2003, InfraStruXure™ debuted. It integrated power, cooling, racks, management and service into an open, adaptable and integrated solution and won nearly 20 awards worldwide. The TravelPower™ Case — the world’s first case with built-in device charging abilities — was also introduced with immediate success. The InfraStruXure line was expanded in 2004 with cooling systems and on-site power generation. That same year, APC won more than 100 awards throughout the world for its products and business excellence. Building on the success of PowerStruXure from 2002, APC expanded its overall NCPI offerings after acquiring Netbotz, an early stage tech company that worked to solve the physical security of IT equipment, and allowed APC to extend industry expertise into the management and security categories. 

On February 14, 2007, APC was acquired by Schneider Electric, a multinational European corporation known globally for its expertise in energy management and automation. This led to the establishment of the Critical Power & Cooling Services (CPCS) Business Unit, which now includes the APC and MGE UPS Systems brands.