Shop relay module

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$109.75
Cole Hersee 24452-BX Relay Module (Fw-Rev 12Vdc)
Amazon.com
Free shipping
$109.75
Cole Hersee 24452-BX Relay Module (Fw-Rev 12Vdc)
Amazon.com
Free shipping
$10.59
Lystin 8 Channel DC 5V DC 230V Relay Module Control Board With Optocoupler For UNO R3 MEGA 2560 1280 DSP ARM PIC AVR TTL Logic STM32 Raspberry Pi
Amazon.com
$10.59
Lystin 8 Channel DC 5V DC 230V Relay Module Control Board With Optocoupler For UNO R3 MEGA 2560 1280 DSP ARM PIC AVR TTL Logic STM32 Raspberry Pi
Amazon.com
$11.29
Hiletgo 12V 8 Channel Relay Module With OPTO-Isolated High And Low Level Trigger 8 Ways Relay Switch Module For Arduino
Amazon.com
$11.29
Hiletgo 12V 8 Channel Relay Module With OPTO-Isolated High And Low Level Trigger 8 Ways Relay Switch Module For Arduino
Amazon.com
$79.20
Gamewell FCI AOM-2RF Velociti Addressable Output Relay Control Module
Amazon.com
Free shipping
$79.20
Gamewell FCI AOM-2RF Velociti Addressable Output Relay Control Module
Amazon.com
Free shipping
$10.40
3V 1/2/4/8 Channel Relay Module - High & Low Level Trigger, Dual Optocoupler Isolation (3V, 4 Channel)
Amazon.com
Free shipping
$10.40
3V 1/2/4/8 Channel Relay Module - High & Low Level Trigger, Dual Optocoupler Isolation (3V, 4 Channel)
Amazon.com
Free shipping
$7.99
NOYITO 30A 1 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 30A For PLC Automation Equipment Control
Amazon.com
$7.99
NOYITO 30A 1 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 30A For PLC Automation Equipment Control
Amazon.com
$13.99
DPST 1NO 1NC 8Amp Power Relay Module, Briidea 24V AC/DC Power Relay Control Voltage, White
Amazon.com
$13.99
DPST 1NO 1NC 8Amp Power Relay Module, Briidea 24V AC/DC Power Relay Control Voltage, White
Amazon.com
$15.28
RS485 12V 1-Channel Relay Module For PLC Controller Industrial Automation Systems
Amazon.com
$15.28
RS485 12V 1-Channel Relay Module For PLC Controller Industrial Automation Systems
Amazon.com
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC | Interface Board(FY-T734C-D24)
Amazon.com
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC | Interface Board(FY-T734C-D24)
Amazon.com
$12.00
AJSWISH SRD-05VDC-SL-C 1-Circuit 5V 10A 250VAC Relay Module
Amazon.com
Free shipping
$12.00
AJSWISH SRD-05VDC-SL-C 1-Circuit 5V 10A 250VAC Relay Module
Amazon.com
Free shipping
$5.99
NOYITO 9V 2-Channel Relay Module High Low Level Trigger With Optocoupler Isolation Relay Load AC 0-250V 10A DC 0-30V 10A Circuit Switch Board
Amazon.com
$5.99
NOYITO 9V 2-Channel Relay Module High Low Level Trigger With Optocoupler Isolation Relay Load AC 0-250V 10A DC 0-30V 10A Circuit Switch Board
Amazon.com
$19.74
MCU, Relay Module YYG 4 High Power 4 Channel Relay Module Relay Module Control Board Optocoupler Isolation 30A DC 12V, Relays (5VDC)
Amazon.com
Free shipping
$19.74
MCU, Relay Module YYG 4 High Power 4 Channel Relay Module Relay Module Control Board Optocoupler Isolation 30A DC 12V, Relays (5VDC)
Amazon.com
Free shipping
$92.59
Silent Knight IDP-Relay Addressable Relay Module
Amazon.com
Free shipping
$92.59
Silent Knight IDP-Relay Addressable Relay Module
Amazon.com
Free shipping
$7.50
Shillehtek 4-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$7.50
Shillehtek 4-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$30.99
5V USB-C UART Relay Module With Optocoupler Isolation, 220V 10A Load Control - Free USB-C & Dupont Cables
Amazon.com
$30.99
5V USB-C UART Relay Module With Optocoupler Isolation, 220V 10A Load Control - Free USB-C & Dupont Cables
Amazon.com
$22.99
4 SPDT 10Amp Power Relay Module For Raspberry Pi Etc Iot Project, DC5V Version
Amazon.com
$22.99
4 SPDT 10Amp Power Relay Module For Raspberry Pi Etc Iot Project, DC5V Version
Amazon.com
$7.99
1 Channels Relay Module DIN Rail Mount SRD-05VDC-SL-C SRD-12VDC-SL-C 10A 5V 12V DC For PNP NPN 1NO 1NC (5, Volts (DC))
Amazon.com
$7.99
1 Channels Relay Module DIN Rail Mount SRD-05VDC-SL-C SRD-12VDC-SL-C 10A 5V 12V DC For PNP NPN 1NO 1NC (5, Volts (DC))
Amazon.com
$35.99
$39.99
Sainsmart 16-Channel 9-36V USB Relay Module
Amazon.com
Free shipping
10% off
$35.99
$39.99
Sainsmart 16-Channel 9-36V USB Relay Module
Amazon.com
Free shipping
$98.99
Waveshare 30-Ch Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, Poe Port Communication, With Various Isolation And Protection Circuits,
Amazon.com
$98.99
Waveshare 30-Ch Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, Poe Port Communication, With Various Isolation And Protection Circuits,
Amazon.com
How Relays Work in Circuits | Relays and Transistors #shorts #engineering
1:03
How Relays Work in Circuits | Relays and Transistors #shorts #engineering
2.9K views3 weeks ago
YouTubeEngineeringness
How Relays Work | And Why They Still Beat TRS Relays are a simple way to use one electrical circuit to control another, and they’re still widely used despite the rise of transistors and solid-state switches. In this video, we break down: •\tHow relays work and what happens inside them •\tThe coil, armature, spring, and contacts •\tHow a low-power signal can control a much larger load •\tFlyback voltage and other problems like contact bounce and arcing •\tHow to read relay ratings and choose the
8:49
How Relays Work | And Why They Still Beat TRS Relays are a simple way to use one electrical circuit to control another, and they’re still widely used despite the rise of transistors and solid-state switches. In this video, we break down: •\tHow relays work and what happens inside them •\tThe coil, armature, spring, and contacts •\tHow a low-power signal can control a much larger load •\tFlyback voltage and other problems like contact bounce and arcing •\tHow to read relay ratings and choose the
829 views2 weeks ago
TikTokengineeringness
Anatomy of an Electromechanical Relay — 5 Key Parts Explained
1:10
Anatomy of an Electromechanical Relay — 5 Key Parts Explained
6.8K views3 weeks ago
TikTokengineeringness
Anatomy of an Electromechanical Relay | 5 Key Parts Explained #shorts #engineering
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Anatomy of an Electromechanical Relay | 5 Key Parts Explained #shorts #engineering
5.1K views4 weeks ago
YouTubeEngineeringness
The Hidden Flaws of Relays | Contact Bounce & Arcing Explained #shorts #engineering
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The Hidden Flaws of Relays | Contact Bounce & Arcing Explained #shorts #engineering
3.1K views3 weeks ago
YouTubeEngineeringness
The 4x1500m Mixed Relay explained 🏊 #openwaterswimming #openwater #relay #explained #team
0:28
The 4x1500m Mixed Relay explained 🏊 #openwaterswimming #openwater #relay #explained #team
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5-Pin Relay Explained: Wiring & Basics for Beginners .
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5-Pin Relay Explained: Wiring & Basics for Beginners .
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230 volt AC To DC 12 volt Relay Circuit Board Electronics Verma
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Relay Kya Hoti Hai Type Of Relay Switching Relay Or Protection Relay Mein Difference
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Relay Race 😳 technique for Relay 🤯💯 #running #relay #athletics #longjump #sports #trackandfield2026
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DIY WiFi Relay 🔥🔥 #howto #howto #technology #diy #diyprojects
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India defeats China in Chinese ground at Asian Relay #shorts
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🏃USA Relay Running Showdown 🏆🔥 | Fastest Team Race & Amazing Finis#RelayRunning #usasportshub #usa
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TT Terry's Best Relay Performance Seen! 😱🇺🇸
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Will It Start?
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Shop relay module

Sponsored
About our ads
$19.74
MCU, Relay Module YYG 4 High Power 4 Channel Relay Module Relay Module Control Board Optocoupler Isolation 30A DC 12V, Relays (5VDC)
Amazon.com
Free shipping
$19.74
MCU, Relay Module YYG 4 High Power 4 Channel Relay Module Relay Module Control Board Optocoupler Isolation 30A DC 12V, Relays (5VDC)
Amazon.com
$30.99
5V USB-C UART Relay Module With Optocoupler Isolation, 220V 10A Load Control - Free USB-C & Dupont Cables
Amazon.com
$30.99
5V USB-C UART Relay Module With Optocoupler Isolation, 220V 10A Load Control - Free USB-C & Dupont Cables
Amazon.com
$92.59
Silent Knight IDP-Relay Addressable Relay Module
Amazon.com
Free shipping
$92.59
Silent Knight IDP-Relay Addressable Relay Module
Amazon.com
$46.99
Notifier FRM-1 - Control Relay Module
Amazon.com
Free shipping
$46.99
Notifier FRM-1 - Control Relay Module
Amazon.com
$7.50
Shillehtek 4-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$7.50
Shillehtek 4-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$22.99
4 SPDT 10Amp Power Relay Module For Raspberry Pi Etc Iot Project, DC5V Version
Amazon.com
$22.99
4 SPDT 10Amp Power Relay Module For Raspberry Pi Etc Iot Project, DC5V Version
Amazon.com
$117.48
MIRCOM MIX-M500RAP 2 AMP @ 24 VDC (RESISTIVE), Advanced Protocol Intelligent Relay, C/W 2 Form "C", OR 1 AMP, Output Module
Amazon.com
Free shipping
$117.48
MIRCOM MIX-M500RAP 2 AMP @ 24 VDC (RESISTIVE), Advanced Protocol Intelligent Relay, C/W 2 Form "C", OR 1 AMP, Output Module
Amazon.com
$7.99
1 Channels Relay Module DIN Rail Mount SRD-05VDC-SL-C SRD-12VDC-SL-C 10A 5V 12V DC For PNP NPN 1NO 1NC (5, Volts (DC))
Amazon.com
$7.99
1 Channels Relay Module DIN Rail Mount SRD-05VDC-SL-C SRD-12VDC-SL-C 10A 5V 12V DC For PNP NPN 1NO 1NC (5, Volts (DC))
Amazon.com
$98.99
Waveshare 30-Ch Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, Poe Port Communication, With Various Isolation And Protection Circuits,
Amazon.com
$98.99
Waveshare 30-Ch Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, Poe Port Communication, With Various Isolation And Protection Circuits,
Amazon.com
$35.99
$39.99
Sainsmart 16-Channel 9-36V USB Relay Module
Amazon.com
Free shipping
10% off
$35.99
$39.99
Sainsmart 16-Channel 9-36V USB Relay Module
Amazon.com
$50.00
Electronics-Salon DIN Rail Mount 8 SPDT Power Relay Interface Module. (Operating Voltage: DC 5V)
Amazon.com
Free shipping
$50.00
Electronics-Salon DIN Rail Mount 8 SPDT Power Relay Interface Module. (Operating Voltage: DC 5V)
Amazon.com
$15.99
3Pcs SSR-10DA Solid State Relay Single Phase Semi-Conductor Relay Module Input 3-32V DC Output 24-380V AC For Temperature Controller
Amazon.com
$15.99
3Pcs SSR-10DA Solid State Relay Single Phase Semi-Conductor Relay Module Input 3-32V DC Output 24-380V AC For Temperature Controller
Amazon.com
$44.80
4 Channel Relay Module Dc 12 V 30 A Relay Module With Optocoupler Isolation
Everymarket INC
$44.80
4 Channel Relay Module Dc 12 V 30 A Relay Module With Optocoupler Isolation
Everymarket INC
$133.00
AC Power 8 Channel Iot Relay Outlet Module, DIN Rail Or Screw Mounting (D-1586TL)
Amazon.com
Free shipping
$133.00
AC Power 8 Channel Iot Relay Outlet Module, DIN Rail Or Screw Mounting (D-1586TL)
Amazon.com
$27.16
2 Channel Relay Module, 5 V Relay Modules With Optocoupler, Status Le Ds For Arduino And Raspberry Pi
Everymarket INC
$27.16
2 Channel Relay Module, 5 V Relay Modules With Optocoupler, Status Le Ds For Arduino And Raspberry Pi
Everymarket INC
$32.29
$68.71
10PCS DIN Rail Relay Module HF 41F With LED 6A Slim Relay 5V 12V 24V High Frequency Relay 41F-5-ZS
AliExpress
Free shipping
53% off
$32.29
$68.71
10PCS DIN Rail Relay Module HF 41F With LED 6A Slim Relay 5V 12V 24V High Frequency Relay 41F-5-ZS
AliExpress
$16.99
$19.99
Sainsmart.Com 16-Channel 12V Relay Module, Europe
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15% off
$16.99
$19.99
Sainsmart.Com 16-Channel 12V Relay Module, Europe
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$17.83
Finder Interface Relay Module 6A 12VDC Single Pole - 38.51.7.012.0050
Tameson.com
$17.83
Finder Interface Relay Module 6A 12VDC Single Pole - 38.51.7.012.0050
Tameson.com

Shop relay module

Sponsored
About our ads
$109.75
Cole Hersee 24452-BX Relay Module (Fw-Rev 12Vdc)
Amazon.com
Free shipping
$109.75
Cole Hersee 24452-BX Relay Module (Fw-Rev 12Vdc)
Amazon.com
Free shipping
$10.59
Lystin 8 Channel DC 5V DC 230V Relay Module Control Board With Optocoupler For UNO R3 MEGA 2560 1280 DSP ARM PIC AVR TTL Logic STM32 Raspberry Pi
Amazon.com
$10.59
Lystin 8 Channel DC 5V DC 230V Relay Module Control Board With Optocoupler For UNO R3 MEGA 2560 1280 DSP ARM PIC AVR TTL Logic STM32 Raspberry Pi
Amazon.com
$11.29
Hiletgo 12V 8 Channel Relay Module With OPTO-Isolated High And Low Level Trigger 8 Ways Relay Switch Module For Arduino
Amazon.com
$11.29
Hiletgo 12V 8 Channel Relay Module With OPTO-Isolated High And Low Level Trigger 8 Ways Relay Switch Module For Arduino
Amazon.com
$79.20
Gamewell FCI AOM-2RF Velociti Addressable Output Relay Control Module
Amazon.com
Free shipping
$79.20
Gamewell FCI AOM-2RF Velociti Addressable Output Relay Control Module
Amazon.com
Free shipping
$10.40
3V 1/2/4/8 Channel Relay Module - High & Low Level Trigger, Dual Optocoupler Isolation (3V, 4 Channel)
Amazon.com
Free shipping
$10.40
3V 1/2/4/8 Channel Relay Module - High & Low Level Trigger, Dual Optocoupler Isolation (3V, 4 Channel)
Amazon.com
Free shipping
$7.99
NOYITO 30A 1 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 30A For PLC Automation Equipment Control
Amazon.com
$7.99
NOYITO 30A 1 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 30A For PLC Automation Equipment Control
Amazon.com
$13.99
DPST 1NO 1NC 8Amp Power Relay Module, Briidea 24V AC/DC Power Relay Control Voltage, White
Amazon.com
$13.99
DPST 1NO 1NC 8Amp Power Relay Module, Briidea 24V AC/DC Power Relay Control Voltage, White
Amazon.com
$15.28
RS485 12V 1-Channel Relay Module For PLC Controller Industrial Automation Systems
Amazon.com
$15.28
RS485 12V 1-Channel Relay Module For PLC Controller Industrial Automation Systems
Amazon.com
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC | Interface Board(FY-T734C-D24)
Amazon.com
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC | Interface Board(FY-T734C-D24)
Amazon.com
$12.00
AJSWISH SRD-05VDC-SL-C 1-Circuit 5V 10A 250VAC Relay Module
Amazon.com
Free shipping
$12.00
AJSWISH SRD-05VDC-SL-C 1-Circuit 5V 10A 250VAC Relay Module
Amazon.com
Free shipping
$5.99
NOYITO 9V 2-Channel Relay Module High Low Level Trigger With Optocoupler Isolation Relay Load AC 0-250V 10A DC 0-30V 10A Circuit Switch Board
Amazon.com
$5.99
NOYITO 9V 2-Channel Relay Module High Low Level Trigger With Optocoupler Isolation Relay Load AC 0-250V 10A DC 0-30V 10A Circuit Switch Board
Amazon.com
$19.74
MCU, Relay Module YYG 4 High Power 4 Channel Relay Module Relay Module Control Board Optocoupler Isolation 30A DC 12V, Relays (5VDC)
Amazon.com
Free shipping
$19.74
MCU, Relay Module YYG 4 High Power 4 Channel Relay Module Relay Module Control Board Optocoupler Isolation 30A DC 12V, Relays (5VDC)
Amazon.com
Free shipping
$92.59
Silent Knight IDP-Relay Addressable Relay Module
Amazon.com
Free shipping
$92.59
Silent Knight IDP-Relay Addressable Relay Module
Amazon.com
Free shipping
$46.99
Notifier FRM-1 - Control Relay Module
Amazon.com
Free shipping
$46.99
Notifier FRM-1 - Control Relay Module
Amazon.com
Free shipping
$7.50
Shillehtek 4-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$7.50
Shillehtek 4-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$30.99
5V USB-C UART Relay Module With Optocoupler Isolation, 220V 10A Load Control - Free USB-C & Dupont Cables
Amazon.com
$30.99
5V USB-C UART Relay Module With Optocoupler Isolation, 220V 10A Load Control - Free USB-C & Dupont Cables
Amazon.com
$22.99
4 SPDT 10Amp Power Relay Module For Raspberry Pi Etc Iot Project, DC5V Version
Amazon.com
$22.99
4 SPDT 10Amp Power Relay Module For Raspberry Pi Etc Iot Project, DC5V Version
Amazon.com
$7.99
1 Channels Relay Module DIN Rail Mount SRD-05VDC-SL-C SRD-12VDC-SL-C 10A 5V 12V DC For PNP NPN 1NO 1NC (5, Volts (DC))
Amazon.com
$7.99
1 Channels Relay Module DIN Rail Mount SRD-05VDC-SL-C SRD-12VDC-SL-C 10A 5V 12V DC For PNP NPN 1NO 1NC (5, Volts (DC))
Amazon.com