Following the success of its innovative DS7 soft starters, which combine smooth starting with freedom from vibration, Eaton’s Electrical Sector has now extended the range to include versions with ratings of up to 200A. With these new additions, the Eaton DS7 soft starter range now comprehensively covers all requirements from 4 A to 200A, for supply systems from 200V to 480V.
DS7 soft starters can be supplied for use with control voltages of either 24V ac/dc or 110 to 230V ac, and all types fully meet the requirements of the IEC/EN 60947-4-2 soft starter product standard. Versions with an integrated interface for SmartWire-DT, the innovative Eaton technology that virtually eliminates the need for conventional control wiring in panels, will be introduced in the near future.
All Eaton DS7 soft starters, including the new high power versions, incorporate the company’s patented asymmetrical trigger control technology, which eliminates the dc components in the motor current that are produced by conventional two-phase controlled soft starters. This means that the motor starts more smoothly and with less vibration, and that the start-up times can be minimised. The performance of DS7 soft starters is therefore fully comparable to that of bulkier and more costly three-phase controlled soft starters.
Eaton’s space-saving DS7 soft starters are an attractive and beneficial alternative to conventional star-delta starters in a wide range of applications, such as pumps, where their ability to eliminate water hammer reduces wear on the whole installation; fans, where they reduce wear on drive systems; and conveyors, where smooth starting and vibration-free operation not only minimises equipment wear but also the risk of product damage.
Electronic soft starters meet the growing need among end users for the elimination of mechanical shock and the reduction of supply current surges during motor starting. They control the supply voltage to the motor during starting so that the motor torque is optimally matched to the requirements of the application. The use of soft starters reduces the load on mechanical components, thereby extending their lives and minimising maintenance requirements, leading to big savings in lifetime costs.
Eaton’s electrical business is a global leader in power distribution, power quality, control and automation, power monitoring, and energy management products and services. Eaton is positioned, through its Cutler-Hammer®, Moeller®, Powerware®, Holec®, MEM®, and Santak® global electrical product series, to answer today’s most critical electrical power management challenges.
Eaton Corporation is a diversified power management company with 2010 sales of $13.7 billion. Celebrating its 100th anniversary in 2011, Eaton is a global technology leader in electrical components and systems for power quality, distribution and control; hydraulics components, systems and services for industrial and mobile equipment; aerospace fuel, hydraulics and pneumatic systems for commercial and military use; and truck and automotive drivetrain and powertrain systems for performance, fuel economy and safety. Eaton has approximately 73,000 employees and sells products to customers in more than 150 countries. For more information, visit www.eaton.com.
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