The 200A DC Contactor manufacturer will show you: the selection method of DC contactor_Vacunm | DC contactor |XGVAC Technology (Shanghai) Co., Ltd.

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The 200A DC Contactor manufacturer will show you: the selection method of DC contactor

Release time:

2021-10-18 15:27

The 200A DC Contactor manufacturer tells you that the DC contactor adopts a modular design, which can assemble the number of contacts required by the customer and the contact form (normally open, normally closed and conversion) required by the customer with the least parts; 200A DC Contactor The manufacturer tells you that this series of products has a high contact breaking voltage and adopts a horizontal blowing magnetic field to extinguish the arc. The maximum breaking voltage can reach 220VDC. Construction machinery system.

good price and quality 200A DC Contactor company
The selection method of DC contactor:
1. The 200A DC Contactor manufacturer tells you to choose the type of DC contactor The type of DC contactor should be selected according to the type of load current and the weight of the load, that is, whether it is an AC load or a DC load, whether it is a light load, a general load or a heavy load.
2. The rated current of the main contact of the DC contactor The rated current of the main contact of the DC contactor can be calculated according to the empirical formula. Frequent reversals, generally reduce the rated current of the main contact of the contactor by one level.
3. The rated voltage of the main contact. The 200A DC Contactor manufacturer tells you that the voltage marked on the nameplate of the contactor refers to the rated voltage that the main contact can withstand, not the voltage of the attracting coil. The rated voltage of the main contact of the contactor should not be less than The rated voltage of the load.
4. Selection of operating frequency The operating frequency refers to the number of on-off times of the contactor per hour. When the on-off current is large and the on-off frequency is too high, it will cause serious overheating of the contacts and even welding. The 200A DC Contactor manufacturer tells you the operating frequency If it exceeds the specified value, a DC contactor with a rated current one level higher should be selected.
5. For the selection of the rated voltage of the coil, the 200A DC Contactor manufacturer tells you that the rated voltage of the coil is not necessarily equal to the rated voltage of the main contact. When the circuit is simple and there are few electrical appliances, you can directly choose 380V or 220V. If the circuit is complex, the electrical appliances are used for more than 5h , A coil with a voltage of 24V, 48V or 110V (36V, 110V, or 127V in the international regulation in 1964) can be used.