Four 5V relayes together in a single board to control 4 loads simultaneously. The relays Can be easily switched by microcontroller or arduino.


  • Rated coil Voltage:5V DC
  • Operating Frequency:50/60HZ
  • Nominal Current:10A AC, 10A at 28V DC 
  • Maximum Switching Voltage:250V AC, 28V DC.
  • Power Required by the board:Vcc=5V DC(For relay coils),5V DC(For energizing every relay individually)

Question & Answer

Total 20 questions

Q: Will I connect the In1,In2..In4 directly to Arduino pin? Questioned by anik.predator93, 12-Feb-2015

Yes. Answered by A.R, 14-Feb-2015 04:31 AM

Q: what is the difference between this and the old device controller? https://www.techshopbd.com/product-categories/modules-9698/1242/device-controller-5-switches-techshop-bangladesh Questioned by shababhsiddique, 28-May-2015

This is already elaborately explained in 'compare products' section here. Please check. Answered by A.R, 30-May-2015 03:50 AM

U have compare prducts section, I didn't know. Where I can find it. Answered by moseurbsl, 22-Mar-2017 05:18 AM

Q: Do you have 8 channel 5 volt relay module? I need it urgently Questioned by shawan, 11-Jun-2015

No. Sorry. Answered by A.R, 11-Jun-2015 11:52 AM

Q: is there available 24V relay module? In industry most of the devices,sensors,controller are operated 24Vdc. So, there should be 24VDC relay module. Questioned by tarifbabu, 29-Sep-2015

24V relay is available here: https://www.techshopbd.com/product-categories/relay/838/relay-24vdc-techshop-bangladesh but not in module. Answered by A.R, 29-Sep-2015 06:50 AM

Q: Hi Can I use it with raspberry pi? Are there any optocouplers with this board? Questioned by techspree, 04-Dec-2015

Possible. No optocoupler included. Answered by A.R, 07-Dec-2015 04:11 AM

Q: Can I use it with microcontroller to on-off fan, light(which we use in our home)? Questioned by Sadique14, 29-Jan-2016

You can. Answered by A.R, 30-Jan-2016 08:05 AM

Q: এটা কি directly microcontroller এর সাথে connect করতে পারব, নাকি ULN2003 এর মাদ্ধমে connect করতে হবে? Questioned by Sadique14, 01-Feb-2016

ULN প্রয়োজন নাই। Answered by A.R, 02-Feb-2016 03:30 AM

Q: Can i control water pump or same high load device using this relay module? Questioned by Nadimulhuq, 03-May-2016

Q: can i control water pump or same high load device using this relay module? Questioned by Nadimulhuq, 03-May-2016

It does depend on the load. The "4 Channel 5V Relay Module" can perform with 10A 250V AC and 10A 30V DC. Answered by FAHIM_REAZA, 03-May-2016 11:46 AM

If you want to perform with high voltage, then please use opto-isolated relay module. The maximum load of our “1 Channel 12v 30A Opto Isolated Relay Module” is: AC 0V to 250V/30A and DC 0V to 30V/30A and ½ HP 240V AC. If our module fulfilled your requirement, then we will suggest you to use it. [Link: https://www.techshopbd.com/product-categories/modules-98775/1751/1-channel-12v-30a-opto-isolated-relay-module-techshop-bangladesh ] Answered by FAHIM_REAZA, 03-May-2016 12:03 PM

Q: can i use it with PIC microcontroller for On Off light fan in our home by android phone? (sorryim beginner) Questioned by Simonn, 10-Jun-2016

Yes, you can use. Answered by FAHIM_REAZA, 11-Jun-2016 07:51 AM

Q: Which switch type is used in this 4 Channel 5V Relay Module? Single Pole Single Throw/Single Pole Double Throw/Double Pole Single Throw/DoublePole Double Throw Questioned by himu2511, 15-Jun-2016

Single Pole Double Through (SPDT) Answered by FAHIM_REAZA, 19-Jun-2016 03:27 AM

Could you explain why ? Answered by himu2511, 19-Jun-2016 03:30 AM

Q: eta ki milisecond er moddhe trip korte parbe Questioned by pashaa31, 19-Jul-2016

Dear customer, this is not suitable for so first switching. Please use "Solid state relay" for so first switching. Link: https://www.techshopbd.com/product-categories/relay/2326/solid-state-relay-40a-3-32v-dc-input-techshop-bangladesh Answered by FAHIM_REAZA, 23-Jul-2016 05:16 AM

Q: what is the minimum channel voltage to switching the relay? (if the channel voltage is 3.3v then relay will operate or not?) Questioned by sujjad, 20-Aug-2016

The "4 Channel 5V Relay Module" will be operated with logical voltage +5V and 0V. Answered by FAHIM_REAZA, 21-Aug-2016 05:58 AM

Q: are you use bc547 Questioned by Syket1212, 09-Nov-2016

Q: are you use bc547 Questioned by Syket1212, 09-Nov-2016

Q: can this be used to control AC 250v appliances such as ceiling fans? Questioned by SMARTKid, 14-Jan-2017

Just you can ON OFF . Answered by Production, 08-Mar-2017 06:24 AM

Q: Can i use it with arduino and Bluetooth module to on off light using mobile.But there is no extra GND pin... Questioned by ShaanNabid, 24-Aug-2017

You can. Answered by A.R, 26-Aug-2017 03:53 AM

Can i get some tutorial or any diagram for this. Answered by ShaanNabid, 27-Aug-2017 01:30 AM

Sorry we have not made any. We made one with 'device controller'. You can get some idea from here. https://www.techshopbd.com/tutorial-categories/arduino/72/chapter-14-interfacing-device-controller-with-arduino-techshop-bangladesh Answered by A.R, 27-Aug-2017 04:04 AM

Q: Do we have 4 channel 12V relay module? If we don't please tell me can use it in place of the 12V module. Questioned by Khalid149, 18-Sep-2017

No. Sorry. We got 1 channel and 10 channel. Not 4. Answered by A.R, 19-Sep-2017 03:56 AM

Q: ভাইয়া দুইটা VCC/GND পিন কিভাবে ব্যবহার করব? আমি Single Channel এরটা আগে ব্যবহার করেছি, তাই বুঝতে পারছিনা। Questioned by abuobaidazishan, 25-Dec-2020

দুইটি VCC এবং দুইটি GND পিনই তাদের নিজেদের মধ্যে সংযুক্ত (Short-Circuit) । তাই যে কোন একটি VCC/GND ব্যবহার করলেই হবে। Answered by FAHIM_REAZA, 28-Dec-2020 07:26 AM

Q: opto isolated ar atar modha difference ki Questioned by KRZArpon, 15-Apr-2021

"4 Channel 5V Opto Isolated Relay Module" এ ইনপুট পিনকে Relay এর কয়েল থেকে Isolate করে রাখা হয়েছে। আর এ কারণেরই মডিউল দুইটির Control Signal এর মধ্যে পার্থক্য রয়েছে । অর্থাৎ "4 Channel 5V Relay Module" এর CHx পিনে Logical High (5V) দিলে নির্দিষ্ট Relay ON এবং Logical Low (0V) দিলে Relay OFF হবে। যেখানে "4 Channel 5V Opto Isolated Relay Module" এর জন্য Relay ON করতে Logical Low (0V) এবং Relay OFF করতে Logical High (5V) ব্যবহার করতে হবে। Answered by FAHIM_REAZA, 15-Apr-2021 10:03 AM

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