Klockner Moeller

Moving more than motors Moeller offers a complete range of core drive products, from classic electromechanical contactors/switchgear up to innovative control devices for individual and economic solutions with machines and systems. A functionally stepped range matched to the varying requirements of different areas of application are available here. The three-phase motor The three-phase motor is the most important and widespread electrical motor world-wide. It is exemplified by its robust construction, economically-priced design and high degree of protection. The resulting world-wide areas of application demand economic drive engineering concepts: From the simple motor start up to speed adjustment and control. The following engineering solutions are generally used: Soft starter/DS4 semiconductor contactors
	A soft and smooth motor start is enabled by the electronic soft starter. It provides stepless control of the three-phase motor supply voltage in the start phase. It is matched to the load-performance of the machine load and provides smooth acceleration. Mechanical stresses and current peaks are thus avoided. The classic star-delta function can be simply replaced.
DS4 semiconductor contactors, depending on the version, can be used for motor loads (as soft starters) or non-motor loads (as semiconductor contactors). DM4 soft starter
Top-quality soft starters such as the DM4 series can be individually matched to the requirements of the respective applications, and offer soft starting in its most comfortable form. A specific current reduction in the start phase and an application specific parameter definition ensure optimum matching to the characteristics of the three-phase drive.
The highest level of operating comfort and motor protection functions which are already integrated, assure simple and safe handling of the drive. DF5/6, DV5/6 frequency inverters

Frequency inverters convert the constant voltage and frequency of the mains supply to a DC voltage. The frequency inverter generates a new three-phase supply with a variable voltage and frequency for the three-phase motor from this DC voltage. This allows optimum matching of the speed or torque of the three-phase motor to suit the process. A wide area of application is offered by the DF5/DF6 series with its integrated V/f control. The DV5/DV6 frequency inverters also incorporate field-orientated vector control for use with frequency or torque control, particularly with drives for highly dynamic performance and load requirements.

Moving more than motors

The three-phase motor