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Variable Speed Starter – new application options for energy

22 March 2016

Eaton has expanded its range of PowerXL DE1 variable speed starters.

In addition to providing the Modbus interface as standard and the option for SmartWire DT, the new variable speed starter also offers an option to directly connect to CANopen. This is said to open up many additional fields of application in mechanical engineering, and meets the requirements of the ErP Directive.

The variable speed starter is a new device category for Eaton, created to provide an alternative that allows users to protect and switch motors while running them in an energy-efficient way. 

When it comes to requirements for minimum degrees of efficiency, such as for pump and fan applications, processes and equipment often require electronic variable speed control. In many cases, however, variable frequency drives are often excessive in terms of their functionality and can be too complex to operate. Motor starters, however are easy to use but have limited functionality. The variable speed starter bridges this gap, combining the advantages of both devices.

Just like the DE1, the DE11 enables variable speed control for applications up to 7.5 kW, and is similar to a contactor or motor starter with the option of ‘out-of-the-box’ operation without the need to set parameters. In the new DE11 configuration level, plug-in control terminals enable pre-assembly, saving time and effort for mechanical engineers and control cabinet builders. The user can install the device either horizontally or vertically. Since the width of the device corresponds to a standard motor starter, it can generally be replaced directly. This makes retrofitting projects straightforward.

In practical comparisons with conventional solutions, this type of configuration is said to reduce installation time by up to 70%.


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