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Relay card 1-channel 5V / 230V for Arduino
Relay card 1-channel 5V / 230V for Arduino
Content 1 Piece
from €1.72 *
Item no: F23107168

Available immediately, delivery time 2 to 4 working days

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Relay card 1-channel 12V / 230V for Arduino
Relay card 1-channel 12V / 230V for Arduino
Content 1 Piece
from €2.15 *
Item no: F23106469

Available immediately, delivery time 2 to 4 working days

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Relay card. HIGH-LOW-LEVEL trigger - 1 channel, 5V
Relay card. HIGH-LOW-LEVEL trigger - 1 channel, 5V
Content 1 Piece
from €2.01 *
Item no: F23107407

Available immediately, delivery time 2 to 4 working days

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Time relay module, time switch - with time delay, 12V, NE555
Time relay module, time switch - with time...
Content 1 Piece
€3.09 * from €2.43 *
Item no: F23108612

Available immediately, delivery time 2 to 4 working days

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Relay 5V with JST XH2.54 3P socket
Relay 5V with JST XH2.54 3P socket
Content 1 Piece
from €3.85 *
Item no: F23106308

Available immediately, delivery time 2 to 4 working days

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Relay card. HIGH-LOW-LEVEL Trigger - 4 channel, 5V
Relay card. HIGH-LOW-LEVEL Trigger - 4 channel, 5V
Content 1 Piece
from €4.88 *
Item no: F23108521

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Relay card, solid state relay - 4 channel, 5V
Relay card, solid state relay - 4 channel, 5V
Content 1 Piece
from €7.53 *
Item no: F23106987

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Relay card. HIGH-LOW-LEVEL trigger - 8 channel, 5V
Relay card. HIGH-LOW-LEVEL trigger - 8 channel, 5V
Content 1 Piece
from €7.75 *
Item no: F23106953

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16 channel relay module - 5V
16 channel relay module - 5V
Content 1 Piece
from €12.80 *
Item no: F23107192

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Mosfet power module - MKS MOS25 V1.0 for print bed etc.
Mosfet power module - MKS MOS25 V1.0 for print...
Content 1 Piece
from €9.07 *
Item no: F23108409

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Relay - light dependent circuit
Relay - light dependent circuit
Content 1 Piece
from €4.22 *
Item no: F23108676

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5V Relay Shield for Raspberry Pi 3
5V Relay Shield for Raspberry Pi 3
Content 1 Piece
from €31.83 *
Item no: F23108865

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Relays - simply intelligent switches

A relay is, roughly speaking, an electromagnetic switch. It is switched by one or more control signals and is used in places where it is necessary to control a circuit by an independent signal of low power.
The traditional form of a relay uses an electromagnet for control, which opens or closes the contacts of the main circuit. Thus, a relay operates with a separate control and main circuit.
The technology behind it is as simple as it is ingenious: the switch consists of a coil with an iron core. When current flows through this coil, an electromagnetic magnetic field builds up. This attracts the so-called armature - the circuit closes.

In microelectronics, relays are usually controlled by a simple input signal. The low current of the microcontroller is sufficient here with a "HIGH" or "LOW" signal to switch the relay.

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