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Relay modules

Relay modules

This Department in our store filled to the brim with modules relay najróżniejszego type, with a large number of channels (up to 16 on one Board), and supports various interfaces - Bluetooth, SPI or Wi-Fi, as well as with optical isolation. Each master and elektronik you will find in this section something for yourself and for your model, or operating system. Check that for you now, and immerse yourself in the world of relay for systems, Arduino, Raspberry Pi and other microcomputers.

Products: 77
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Relay module 4 channels with optoisolation - 10A / 250VAC contacts - 5V coil

The module is equipped with four relays JQC-3F with a coil powered with a voltage of 5 V with optical isolation of input and mounting holes. The system allows you to control...
Index: MOD-02579
Index: MOD-02579
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Regular price €3.23 Price €3.23

Relay module 2 channels - 10A / 250VAC contacts - 5V coil

Dual module is equipped with  SRD-05 relays with the coil powered with the  voltage of 5 V , the transistor amplifier and mounting holes. The system allows you to control...
Index: MOD-02043
Index: MOD-02043
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Regular price €2.30 Price €2.30

Relay 2 channel module with optoisolation - 10A / 250VAC contacts - 5V coil

The module has two relays SRD-05 with a coil powered with a voltage of 5 V with optical isolation of input and mounting holes. The system allows you to control the actuators...
Index: MOD-02170
Index: MOD-02170
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Regular price €2.07 Price €2.07

Relay module semiconductor SSR 2A 1 channel - 240VAC / 2A contacts. 5VDC coil

The module is equipped with 1-channel relay, semiconductor SSR with a constant control voltage of 5 V DC and AC voltage switching between the values from 100 VAC to 240 VAC....
Index: DNG-10161
Index: DNG-10161
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Regular price €3.00 Price €3.00

Sonoff Mini R2 - 240V WiFi relay - Android / iOS app

Ready-made 240 V relay module with small dimensions, so it can be mounted in a flush-mounted box. The device is controlled via a WiFi network using the eWeLink application...
Index: DNG-15925
Index: DNG-15925
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Regular price €10.44 Price €10.44

Optoisolation relay module 8 channel - 10A / 250VAC contacts - 12V coil - blue

The module has eight SRD-12 relay with a coil powered with a voltage of 12 V along with optoelectronic insulation. The system allows you to control actuators with...
Index: MOD-03285
Index: MOD-03285
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Regular price €8.14 Price €8.14

Transistor switch with adjustable delay - 15A / 36V

The module equipped with transistors powered with the voltage from 5 V to 36 V. T he system allows you to control actuators using microcontroller ports or any development...
Index: GRL-12126
Index: GRL-12126
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Regular price €5.33 Price €5.33

Iduino relay 2 channel module with optoisolation - 10A / 240VAC contacts - 5V coil

Module with two SRD-05 relays with the coil powered with a voltage of 5 V and optical insulation of the input, and with the mounting holes. The system...
Index: OST-14266
Index: OST-14266
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Regular price €2.53 Price €2.53

DFRobot Gravity - relay 1 channel - 10A/277VAC contacts - 5V coil

Module with relay that allows for the control of the actuators consuming the current of up to 12 A for the voltage of 125 V or 10 A for 277 V through the ports of the...
Index: DFR-05964
Index: DFR-05964
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Regular price €2.67 Price €2.67

Solid state relay module SSR 2A 1 channel - contacts 240VAC / 2A 5VDC coil

SSR 1-channel solid-state relay module with 5 VDC DC control voltage and switching AC voltage from 100 VAC to 240 VAC. Nominal current is 2 A. The unit does not generate...
Index: OST-16280
Index: OST-16280
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Regular price €3.00 Price €3.00

Relay module 1 channel with delay - 10A / 250VAC contacts - 5 V coil

The module is equipped with relay SRD-05 with a coil powered with a voltage of 5 V. The system allows you to control actuators using microcontroller ports or any...
Index: GRL-10917
Index: GRL-10917
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Regular price €5.05 Price €5.05

Semiconductor Relay moduleSSR 8 channels - 240VAC / 2A contacts 5VDC coil - keyes

The module is equipped with an 8-channel, solid-state SSR relay with 5 VDC DC control voltage and switching AC voltage from 100 VAC to 240 VAC. Nominal current is 2 A. The unit...
Index: OST-15066
Index: OST-15066
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Regular price €19.74 Price €19.74

Relay module Iduino 4 channels - 10A/250VAC contacts - 5V coil

Module with four SRD-05 relays with a 5 V coil and optical insulation of the input as well as mounting holes. The system allows you to control the actuators by means of...
Index: OST-14480
Index: OST-14480
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Regular price €11.60 Price €11.60

Relay module 1 channel - 3A/250VAC contacts - 5V coil

The module is equipped with  HK4100F relay with the voltage of 5 V. T he system allows you to control the actuators with a voltage of 250 V AC / 30 V DC , using the...
Index: OST-14297
Index: OST-14297
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Regular price €1.79 Price €1.79

Semiconductor Relay moduleSSR 2 channels - 240VAC / 2A contacts 5VDC coil - keyes

The module is equipped with a 2-channel, solid-state SSR relay with 5 VDC DC control voltage and switching AC voltage from 100 VAC to 240 VAC. Nominal current is 2 A. The unit...
Index: OST-15067
Index: OST-15067
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Regular price €5.79 Price €5.79

Relay module 4 channels + Bluetooth 4.0 BLE - 10A / 250V contacts - 5V coil

The module has four SRD-05 relays with a coil powered with the voltage of 5 V, it was also equipped with a module Bluetooth 4.0 BLE allowing ot control the devices via Android...
Index: GRL-10909
Index: GRL-10909
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Regular price €27.67 Price €27.67

Coolseer WiFi Breaker - 230V relay - WiFi switch - COL-WB01W

A module that allows you to control 230 V devices with a power of up to 2200 W using a WiFi network through an application for mobile devices from anywhere in the world...
Index: CLR-15001
Index: CLR-15001
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Regular price €6.74 Price €6.74

Coolseer WiFi Switch Module - 230V WiFi relay - COL-SM01W

A ready-made module to control 230 V to 2300 W home appliances from anywhere in the world via WiFi with a dedicated application or via voice commands. Small dimensions...
Index: CLR-15008
Index: CLR-15008
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Regular price €22.09 Price €22.09

BleBox SwitchBox v3 - 230V WiFi relay - Android / iOS application

A small module for the control of 230 V domestic appliances up to 3 kW . The controller also allows you to measure the energy consumed . The control is done via WiFi with...
Index: BOX-16883
Index: BOX-16883
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Regular price €44.88 Price €44.88

Grove - relay 1 channel - 30A-250VAC / 30VDC contacts - 5V coil

Module with relay that control the actuators consuming the current of up to 30 A for the voltage of 250 V AC, 30 V DC using the ports of the microcontroller. The module is...
Index: SEE-11351
Index: SEE-11351
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Regular price €10.44 Price €10.44

Relay module Velleman 4 channels - 10A / 250VAC contacts - 5V coil

Quadruple module is equipped with SRD-05 relay with a coil powered with the voltage of 5 V, the transistor amplifier and mounting holes. The system allows you to control...
Index: VEL-13900
Index: VEL-13900
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Regular price €9.29 Price €9.29

Sonoff Dual R2 - 2x relay 230V - WiFi Android / iOS switch

Sonoff Dual R2 module consisting of two relays to control two circuits. The device communicates through a WiFi network and can be controlled by an application from...
Index: ALT-16201
Index: ALT-16201
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Regular price €13.23 Price €13.23

Coolseer WiFi and RF Breaker - relay 230V WiFi + RF 433MHz - COL-BSW02W

Ready-made module to control 230 V to 2300 W home appliances from anywhere in the world via WiFi using a dedicated application, radio at 433 MHz or via voice commands. Quick...
Index: CLR-15011
Index: CLR-15011
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Regular price €13.72 Price €13.72

Module relay semiconductor SSR 2A4 channels - 240VAC / 2A contacts 5VDC coil - keyes

The module is equipped with a 4-channel, solid-state SSR relay with 5 VDC DC control voltage and switching AC voltage from 100 VAC to 240 VAC. Nominal current is 2 A. The unit...
Index: OST-15068
Index: OST-15068
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Regular price €10.44 Price €10.44

What is relay and how it works?

Relay modules offered in our store are devices, electrical and electronic devices, the task of which, under appropriate conditions, is a dramatic state change in one or more output circuits. The relay responds to the change of input physical quantities, such as voltage, current, pressure, temperature, in such a way that if it exceeds a certain level, the signal changes abruptly, typically by the command “enable” or “disable”.

The use of relays

Through its action, the relay allows a large amplitude or level of voltage to produce effects in the circuits. Have an extra relay and low, which respond to changes in measured values over or below a certain level. An example is the relay of the maximum current, which is triggered when the value of the current flowing through it exceeds a specified value. We offer relay modules ready to implement the designed system and the model.

Optoizolacja

Our modules relay that we offer include optoizolację. What is optoizolacja? It's nothing complicated as it may seem. Optoizolacja is the separation from each other separate circuits with control signals. This is possible due to Transoptora, which sends control signals so as to isolate electrically these chains. Process optoizolacji allows you to protect selected elements of the system - usually the most expensive in our system.

The difference between usually and relays

What is the difference between the two systems, as the principle of their action is the same? It is the systems that are used. Contactors are devices to enable high voltage systems with power - for example, electric motors, relay circuits or low-power signal with a zero potential, for example, in programming logic drivers. This should also significantly increases the service life of relays, contactors than (several million connections at the relays, up to several thousand on stycznikach).