Earthing System TN-C-S

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Motor Control Diagrams

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Motor starters

Star-delta starter   This is the most popular and commonly used starting method for motor ratings > 4 kW (400 V).   • Electronic motor starter (EMS) and soft starter These enable the soft and low-noise starting of the motor. This eliminates interference producing current peaks and jerks during switching. The startup and deceleration phase...

Direct on line starter

Direct-on-line starter   In the simplest case the motor is connected directly with a contactor. The combination of motor protection and cable protection (fuse) is called a motor starter (MSC = Motor Starter Combination). By applying the full mains voltage to the motor windings, DOL starting may produce large starting currents which may result in troublesome...

CB Number of poles

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Standards

CE The CE conformity marking shall indicate conformity to all the obligations imposed on the manufacturer, as regards his products, by virtue of the European Community directives providing for the affixing of the CE marking.   When the CE marking is affixed on a product, it represents a declaration of the manufacturer or of his authorized representative that the product...

Standards

“Low Voltage” Directive 2006/95/CE The Low Voltage Directive refers to any electrical equipment designed for use at a rated voltage from 50 to 1000 V for alternating current and from 75 to 1500 V for direct current. In particular, it is applicable to any apparatus used for production, conversion, transmission, distribution and use of electrical power, such as machines, transformers,...