Who Owns NetSure?

NetSure emerged in the early 2000s as Emerson Network Power's flagship DC power platform for telecommunications. Telephone networks had run on -48 volt DC power for a century because batteries on DC plants keep lines alive during grid failures, and every new generation of network equipment needed larger, more efficient DC plants. Emerson had assembled much of that heritage through acquisitions of telecom power specialists, and NetSure consolidated the offering into a single product family.

The timing aligned with mobile network expansion. Cellular carriers building out 2G and 3G networks needed compact, reliable DC power plants at thousands of new cell sites, and a modular rectifier shelf that could grow with the site became the standard architecture. NetSure rode that buildout into most of the major carrier networks in North America and abroad.

By the early 2010s the line covered indoor central office plants, compact access systems, outdoor cabinets, and controller platforms. Emerson introduced the NetSure 721 system for North American wireless and wireline sites in 2012, pairing 3,500 watt eSure rectifiers with the ACU+ controller for site monitoring and energy management. That same year, the NetSure 4015 brought 400 volt DC distribution to data centers, among the first high-voltage DC systems marketed at that voltage class.

By 2014, Emerson described NetSure as an industry standard-bearer for a decade, indicating a launch around 2003. In January 2014 Emerson announced a next-generation NetSure platform covering core and access deployments, built around high-efficiency eSure rectifiers including a 2,000 watt module described as the most compact on the market at that time. The NetSure 5100 compact platform followed for Europe, the Middle East, and Africa. The design philosophy stayed consistent: modular rectifier shelves that operators can scale and service without taking a site down, critical for facilities that cannot afford a maintenance outage. Battery backup completes the architecture, since a DC plant's reason to exist is keeping the network alive when the grid fails.

When Platinum Equity turned Emerson Network Power into Vertiv in late 2016, NetSure stayed in the portfolio as the company's DC power name. Under Vertiv, the line has grown with each network generation: 4G densification, 5G macro site and small cell rollouts, fiber broadband builds, and edge computing facilities that need DC power at the network edge.

The product family has also widened beyond pure telecom. Broadband cable operators use NetSure systems for hybrid fiber-coax network powering, and the same rectifier and controller platforms appear in DC-enabled data center and enterprise applications. Vertiv has continued refreshing the range with higher-density rectifiers and lithium-ion battery integration.

Current NetSure systems span indoor and outdoor DC power plants, rectifier modules exceeding 97 percent peak efficiency, DC-to-DC converters, solar and hybrid power options, controllers, batteries, and outdoor enclosures for harsh environments. The line serves access, edge, and core applications across telecom and DC-enabled data center spaces.