Bimetal LS type MT-32/3H (12-18)

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  • 9 Year

Bimetal LS type MT-32/3H (12-18)


[Bimetal LS type MT-32/3H (12-18)](https://www.automation24.ir/product-2089/%D8%A8%DB%8C%D9%85%D8%AA%D8 %A7%D9%84-ls-%D8%AA%DB%8C%D9%BE-mt32-3h-\(1218\))

### B-metal key:

The non-metal switch is used to protect the electric motor and other electrical equipment against overcurrent. The structure of this switch consists of 2 non-homogeneous metals that have different longitudinal expansion coefficients and are pressed together in a cold state. How the switch works Bimetal is such that due to the increase in the amount of current passing through the rated current (excess current), the temperature increases and as a result the length of the two metals increases and since the materials of the two metals are different, the two metals bend. This action causes disconnection or connection of the circuit.


## Bimetals are divided into three categories in terms of performance after breaking the circuit:

Hand or manual without metal

automatic bimetal (Auto)

Manual and automatic without metal

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### Hand-held metal:

Manual bimetals cool down and return to their original state after functioning and disconnecting the circuit, but the contacts that have changed status remain in the same state, so to reconnect, you have to press the reset button on the bimetal manually. It is compressed so that the contacts return to their original state and the circuit is ready for reconnection. This type of bimetal is used in systems whose control circuit is automatic or non-automatic.



### Automatic bimetal:

When an error (overload) occurs in the electrical systems, the automatic bimetal switches off the relevant circuit through a closed contact, and after a certain period of time when it has cooled down, the contacts return to their original state. Metals are used in systems whose control circuits are manually controlled, such as star and triangle starting circuits of three-phase electric motors, aerial cranes, elevators, industrial devices, electric benders, guillotines, press machines, etc. .



### Manual and automatic bimetal:

Bimetal manufacturing factories do not make manual and automatic bimetals separately in order to prevent the wide variety of this product. Rather, both bimetal modes are made in one set and are used to change modes by a key installed on it.



## Important points in choosing bimetal:

Bimetal is selected according to the nominal current value of the electrical device, or the amount of current passing through the place where the bimetal is placed. Because the current absorbed by electrical devices, especially electric motors, is different in different loads. As a result, in order to select the appropriate bimetal, the current passing through the installation site should be obtained, and the bimetal should be selected within the range of the rated current and set exactly on the rated current (passing current).

Automation site 24

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  • Company activities: Agents, Distributor and Wholesaler, Shop
  • Place: Iran, Province Qom
  • In the field of: Industrial electricity
  • Company Type: Private

Automation 24 online store based on a store with 30 years of experience and electricity activity Industrial, industrial automation and measuring instruments and equipment were launched in March of 1993. With the activities carried out, this store has the friendly symbol of electronic trust from the Ministry of Industry, Mines and Trade, the golden symbol of organizing Internet sites by the Ministry of Culture and Islamic Guidance, and also under the supervision of FATA police review systems and the Center for Information Technology and Digital Media. It is necessary to mention that purchasing from the site of 24 Automation Store according to the incentive plan, which has been active from the beginning of this store, is free of charge through Pishtaz post and without any cost for buyers to the address listed (door of the house). Or workplace) will be sent.
Industrial electricity

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