Emerson PlexPower Motor Starter

A lightweight alternative to traditional cast and bolted systems that delivers component-level protection

The Appleton™ PlexPower™ motor starter from Emerson™, builds on the technology of PlexPower™ Panelboards to provide component level protection for off-the-shelf motor starters. The lightweight, corrosion-resistant, stainless steel design offers easier maintenance, quicker installation, and straightforward operation.motor starter

Appleton PlexPower provides electrical apparatus protection combined with the convenience and savings of off-the-shelf components. It is designed for hazardous, wet, or corrosive locations such as oil refineries and chemical plants.

Appleton PlexPower delivers savings up to 73% compared to the total cost of ownership of traditional cast and bolted motor starters. Fabricated from lightweight 316L stainless steel instead of heavy-cast aluminum, the motor starter requires fewer people and less labor time to install. Also, there is no need for conduit seals or cable glands like with traditional cast and bolted models and the starters are not limited only to switch rack mounting. For example, by locating the PlexPower closer to motors and equipment, electricians can shorten cable runs to achieve lower overall labor and materials costs. Modular design construction using off-the-shelf breakers, contactors, and motor starters also ensures faster commissioning by making replacements readily available from multiple suppliers.

“The Appleton PlexPower delivers on Emerson’s enduring commitment to the electrical professional with a patented design that saves time and money, while giving electricians working in hazardous locations much needed peace of mind,” said Tim Graff, vice president of engineering for Emerson Automation Solutions. “Because it is easier to install, operate, upgrade, and maintain, it is the perfect alternative to traditional cast motor starters.”

Appleton PlexPower offers fast installation by increasing mounting flexibility with a slimmer footprint and flexible, modular design. It can be configured in single or multiple motor starter designs to reduce space requirements in crowded control rooms while meeting exact specifications. In addition, the product can be mounted standalone at various locations throughout a facility, giving additional convenience while saving space and cabling costs.

Accessibility to enclosures is one of the biggest challenges for end users installing, operating, and maintaining hazardous area motor starters. To access internal components in traditional cast and bolted enclosures, up to 70 bolts must be loosened and then tightened again, leading to extended production downtime and potentially greater risk to arc flash accidents. Plus, improperly torqued or missing bolts can be dangerous and cause accidents or safety risks. To combat this time-consuming and potentially dangerous situation, the PlexPower is designed for easier accessibility to be quickly opened with a few quarter-turn latches rather than multiple bolts. Only standard tools are needed to open and close the enclosure, which means production lines can be up and running in less time and greater profitability.

The Appleton PlexPower motor starter modular design improves worker safety by limiting workers’ exposure to high levels of incident energy when installed close to the application. Component level protection means every component has its own module with its own flame path. The result is fewer workplace accidents, a diminished risk of damaging the flame path, and greater flexibility and convenience for the end-user.

Available with up to a NEMA 1 size starter, Appleton PlexPower has NEC and CEC Certification for Class I, Division 2 or Class I, Zone 1 and Type 4X applications.