Build Daily

Engineering Systems

August 12, 2017 18:07

Relays with their hands

Relay at 220 volts

Relay at 220 volts

in the art, where the relay is used actively, they are divided into:

  • telegraph
  • phone
  • aviation

And according to the principle of action is:

  • electrical
  • mechanical
  • thermal
  • acoustic
  • chemical
  • optical, magnetic and other types of relay

There are protection relays, control, monitoring, alarm.The device closing and opening of a cyclical switch to turn on and turn off the electrical load on the installed program, making it to the automatism of the Volt, despite the time of day at the moment of contact.Also, these can be easily programmed.With standard programming possibilities: active - from 0 to 999, seconds and minutes;inactive - between 0 and 999 seconds, and minutes;It can be configured as one or a few cycles.

Relay 12V 220

Standard relays used in electrical appliances, has a core coil, a yoke, armature, contacts, and the return spring.The device is 12 volts is not an exception, but it includes a simplified version of the assembly is:

  • electromagnet
  • Anchor
  • switch

Relay 12 volts 220

relay 12 volt 30 amp

The relay is standard on the car havingdescription:

  • power Size: 8 ... 16V .;
  • This load: 12V .;
  • Control current: no more than 0.2 A .;
  • operation voltage: not less than 8,0V .;
  • Load release: 1.5 ... 5.0 volt .;
  • maximum electrical current in the main circuit: 30A .;
  • The resistance of the coil: 80 ± 10 ohms.

The main difference between the relays, which have such characteristics, is their quality and dial contacts.Distinguish power for five and four contact but have any relay coil contacts, such as contacts 85 and 86 contact.But it is worth remembering that in some devices imported between these contacts often put resistors and diodes, which are quenched contacts.They are used to protect control circuits of large loads that can occur in the break time of the relay coil chain.

relay coil


relay their own hands

So, for individual processing is not necessary to have special skills and knowledge of electrical engineering, enough basic concepts.Consider the example of the manufacture of a temporary switch to 220 volts.

To do this we need a large nail (most likely weaving), trying to drive it into the wood surface, but up to half.Making an electromagnet.Use insulated copper wire and wound it around our nail from one side to the other, then to fix it on the cap of the nail.

reserve approximately centimeter at both ends, it will give the possibility to control the magnitude of the electromagnetic field.

Attach a sheet of iron to the board.Bend it to the end of the nail head was higher.Putting a magnet wire to the positive terminal on the battery.Click on the second end (minus).The nail should come into contact with an iron plate.Connect the power to the instrument.Attach the clamps on the edges (the lower part of the nails and steel strip).Include magnesium, then strain.And our relay 220 is ready.

detailed story about the switch with his own hands, see the video in the next tab.