An electromagnetic starter is a type of device used on the territory of industrial enterprises. The main task of the ego is to control the power load. It also prevents the potential breakdown of electrical appliances due to a decrease in electrical voltage in the circuit.
Magnetic switch
Depending on the variety of production, equipment https://res.ua/rus/komutaciyna-aparatura/magnitni-puskachi/ can be responsible for performing a number of functions:
turning on and off electrical appliances - power units, boilers, air conditioners, heaters, etc.;
providing the ability to remotely control the operation of equipment thanks to the use of a special remote control;
discharge of low-power contacts;
tracking moments of overheating and overloading to increase operational safety.
In addition, taking into account the universality of the work, the product may be responsible for the performance of additional functions. For example, it switches the "star"/"delta" scheme of power units in a three-phase circuit for their acceleration, blocks the inclusion of direct start and engine reverse at the same time, checks the current state of the power circuit. If there is an additional set of contacts, it is responsible for transmitting information to a special microcontroller.
Types of magnetic starters
Each device is classified according to a number of criteria.
The electrical value of the nominal current that is supplied to the main circuit. She can be from the first to the seventh. Practice shows that the use of the fifth, sixth and seventh apparatus is a rare phenomenon.
Purpose Conventional magnetic starters provide rotation in a single direction, while reversible ones support the possibility of changing the direction of scrolling.
Signal lamp and number of control buttons. As a rule, they are installed in starters located in a modular housing.
A set of additional contacts. According to the considered criterion, the equipment may be closing or opening.
Wear resistance class. As a rule, foreign products belong to the A-class, while domestic analogues can belong to categories A, B, C.
According to the degree of protection, the starters are also divided into several categories - from IP00 to IP54. The larger the number, the more protected the product is. To make the replacement of the technique universal, the developers standardized the technical parameters.
Electromagnetic starters
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