Switch - a dedicated switchboard.It is used for switching an electrical circuit for conducting electricity.Such systems operate by hand lever.For example, during the inspection or repair of the electrical system without the devices of this kind is necessary.Rocker switch generally one of the easiest versions of switches of this group.
Application and classification
If we talk about the number of contacts, these devices can be:
1) multipolar.
2) three-pole.
3) of the bipolar.
4) single-pole.
In addition, you can find the toggle switch with a side or central lever.
To accommodate this device often use special protective boxes.On the external side while the control lever is output.
These devices can be easily used not only in industrial installations, but also for domestic purposes.Any changeover switch is universal.
What should I look for when buying?
In order to make the right choice, it is necessary at the outset to determine what it will be used by the switch.After that you can already jump to other parameters.In addition, it is important to know what the power of electrical appliances included in one or another network.
Experts mention a few parameters that you should pay attention, visiting specialized shops.This operating position established failure operating time, placement category according to GOST and climatic performance, rated voltage, rated current of the trip and the number of poles.
How to decipher coded?
If the package shows two figures, the second refers to the rated current, and the first - the number of poles.If the toggle switch is labeling letter b , it means that you are using a side lever. C - a designation for the center.When should the two letters and the second of them n, it shows the front wiring.Finally, n and p - switch and switch respectively.
little about design
contact blade type system - a mandatory component of any switch of this type.Furthermore, there are still parts in the form of spring clips.Metal knives are included in them, when the system is closed.With this toggle switch using does not break contact.
Additional information
absence or presence of dugogasilnyh cameras - the possible designs for devices with lever drive or a side handle.If it is centered, the special camera always absent.But there is a Spark arrester contacts.Thus, when OFF, it does not depend on the speed with which the lever rotates.If the current unit is greater than 200 amperes, for example, there is a changeover switch 400A, then the device is enhanced with steel springs.
In addition, the model can be connected to the fuse, which provide additional protection.For example, you can find the toggle switch 250A is with such a design.
