electromechanical relays optocoupler (191 offers*)

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Electromechanical Relays Optocoupler Module Single Channel High & Low Trigger 5V/12V/24V(5V)
Electromechanical Relays Optocoupler Module Single Channel High & Low Trigger 5V/12V/24V(5V)
£3.89
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Relay Electromechanical, Optocoupler Relay Module Board，5V/12V/24V Relay Module High & Low Trigger Module for (24V)
Relay Electromechanical, Optocoupler Relay Module Board，5V/12V/24V Relay Module High & Low Trigger Module for (24V)
£3.63
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Low Level Trigger Relay Board 12V 16 Channel Relay Module with Optocoupler Protection Low Level Trigger
Low Level Trigger Relay Board 12V 16 Channel Relay Module with Optocoupler Protection Low Level Trigger
£12.39
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Oumefar 1 Channel High & Low Trigger Optocoupler Relay Module Board 5V/12V/24V Optocoupler Relay Module (12V)
Oumefar 1 Channel High & Low Trigger Optocoupler Relay Module Board 5V/12V/24V Optocoupler Relay Module (12V)
£6.29
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Oumefar 30A High Low Level Trigger Optocoupler Isolation Relay Module High Power One Way Relay for PLC Equipment Industrial Systems(5VDC)
Oumefar 30A High Low Level Trigger Optocoupler Isolation Relay Module High Power One Way Relay for PLC Equipment Industrial Systems(5VDC)
£5.09
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Oumefar 30A High Low Level Trigger Optocoupler Isolation Relay Module High Power One Way Relay for PLC Equipment Industrial Systems(24VDC)
Oumefar 30A High Low Level Trigger Optocoupler Isolation Relay Module High Power One Way Relay for PLC Equipment Industrial Systems(24VDC)
£3.89
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Relay Module 1 Channel Relay Power Switch Module with Optocoupler One Way Trigger Relay Expansion Board 30A YYG-2(5VDC)
Relay Module 1 Channel Relay Power Switch Module with Optocoupler One Way Trigger Relay Expansion Board 30A YYG-2(5VDC)
£7.92
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4 Channel Relay Module, High and Low Trigger Optocoupler Relay Module Board with 4-way Relay State Indicator Light(12V)
4 Channel Relay Module, High and Low Trigger Optocoupler Relay Module Board with 4-way Relay State Indicator Light(12V)
£4.97
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Hilitand 1 Channel Relay Power Switch Module with Optocoupler, One Way Trigger, 30A, 12VDC
Hilitand 1 Channel Relay Power Switch Module with Optocoupler, One Way Trigger, 30A, 12VDC
£6.48
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Relay Module, 16-channel 5V Relay Module Control Board with Optocoupler Protection For Microcontroller Module
Relay Module, 16-channel 5V Relay Module Control Board with Optocoupler Protection For Microcontroller Module
£19.25
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MRI-3.3D 48 Ultra Thin PLC Relay Module Relay Optocoupler Isolating PLC Relay DC Slim Relay Module Input 3.3VDC Output 3-48VDC
MRI-3.3D 48 Ultra Thin PLC Relay Module Relay Optocoupler Isolating PLC Relay DC Slim Relay Module Input 3.3VDC Output 3-48VDC
£9.96
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DUBEUYEW DC 5V Relay Module 1-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger(3PCS)\
DUBEUYEW DC 5V Relay Module 1-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger(3PCS)\
£5.99
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Relay Board, Dc Micro Relay Module Board 3.3-5V with Optocoupler for Home Appliance Control (1 Channel)
Relay Board, Dc Micro Relay Module Board 3.3-5V with Optocoupler for Home Appliance Control (1 Channel)
£4.82
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BuxiuGK 6 Pcs Relay Module 12V,1 Channel Relay Board Relay Module with Optocoupler High/Low Level Trigger Expansion Board
BuxiuGK 6 Pcs Relay Module 12V,1 Channel Relay Board Relay Module with Optocoupler High/Low Level Trigger Expansion Board
£8.99
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Optocoupler Isolating PLC Relay, Yellow LED, Compact 6.2mm, 3-48V DC, 2.5kVrms Max Isolation, 'Photoelectrical Coupling Relay' for Installation Space Saving with Clear Port Mark
Optocoupler Isolating PLC Relay, Yellow LED, Compact 6.2mm, 3-48V DC, 2.5kVrms Max Isolation, 'Photoelectrical Coupling Relay' for Installation Space Saving with Clear Port Mark
£9.77
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Relay Module Board, Relay Module With Optocoupler, Relay Expansion Module Board, 8 Channel Optocoupler Relay Module Board High & Low Trigger 5V/12V/24V (24V)
Relay Module Board, Relay Module With Optocoupler, Relay Expansion Module Board, 8 Channel Optocoupler Relay Module Board High & Low Trigger 5V/12V/24V (24V)
£9.08
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2Pcs 2 Channel Relay Module with Optocoupler Isolation DC 30V/10A for High Level Trigger Low Level Trigger
2Pcs 2 Channel Relay Module with Optocoupler Isolation DC 30V/10A for High Level Trigger Low Level Trigger
£5.69
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ELEGOO 8 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA R3 Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi
ELEGOO 8 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA R3 Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi
£10.99
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Yizhet 5V 2 Channel-Relay, DC 5V 230V Relay Shield Module Control Board with Optocoupler for Raspberry Pi Arduino PIC AVR MCU DSP ARM TTL Logic
Yizhet 5V 2 Channel-Relay, DC 5V 230V Relay Shield Module Control Board with Optocoupler for Raspberry Pi Arduino PIC AVR MCU DSP ARM TTL Logic
£4.99
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Oumefar DC 10A 2-Channel High Low Level Trigger Relay Board Module AC 250V DC 30V Dual Optocoupler Isolation Relay for PLC Control (24V)
Oumefar DC 10A 2-Channel High Low Level Trigger Relay Board Module AC 250V DC 30V Dual Optocoupler Isolation Relay for PLC Control (24V)
£5.39
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Micro Relay Module, Easy to Use Compact, Stable DC 3.3-5V Transmission Small Relay Module Indicator Light with Optocoupler for Home Appliances (4 Way)
Micro Relay Module, Easy to Use Compact, Stable DC 3.3-5V Transmission Small Relay Module Indicator Light with Optocoupler for Home Appliances (4 Way)
£6.21
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Valefod DC 12V Relay Module 1-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger, Pack of 10
Valefod DC 12V Relay Module 1-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger, Pack of 10
£12.99
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❥❥High Power One Way High/Low Level Trigger Optocoupler Isolation Relay Module, 30A YYG-2 DC24V, Performance, Anti-Interference for Stable (5VDC)
❥❥High Power One Way High/Low Level Trigger Optocoupler Isolation Relay Module, 30A YYG-2 DC24V, Performance, Anti-Interference for Stable (5VDC)
£6.19
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Relay Board, Dc Micro Relay Module Board 3.3-5V with Optocoupler for Home Appliance Control (4 Way)
Relay Board, Dc Micro Relay Module Board 3.3-5V with Optocoupler for Home Appliance Control (4 Way)
£6.72
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Fafeicy ESP8266 Relay Module, Dual Channel PCB, DC 8-80V, Secure, Optocoupler Isolation, TVS Input Protection, for ESP8266 Secondary Development and Learning, Relay Board
Fafeicy ESP8266 Relay Module, Dual Channel PCB, DC 8-80V, Secure, Optocoupler Isolation, TVS Input Protection, for ESP8266 Secondary Development and Learning, Relay Board
£5.05
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3 Channel Relay Module High Voltage Relay Board with Isolated Optocoupler High Low Level Trigger Fault Tolerant Design Direct Connection Interface 5MA AC0-250V or DC0-30V (5v (3.3V compatible))
3 Channel Relay Module High Voltage Relay Board with Isolated Optocoupler High Low Level Trigger Fault Tolerant Design Direct Connection Interface 5MA AC0-250V or DC0-30V (5v (3.3V compatible))
£9.66
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BuxiuGK 6 Pcs 5V Relay Module with Optocoupler, 1 Channel, High/Low Level Trigger, Expansion Board
BuxiuGK 6 Pcs 5V Relay Module with Optocoupler, 1 Channel, High/Low Level Trigger, Expansion Board
£8.69
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High Power 30A One Way Relay Module with Optocoupler Isolation for High Low Level Trigger Control YYG 2 for Reliable Switching Applications
High Power 30A One Way Relay Module with Optocoupler Isolation for High Low Level Trigger Control YYG 2 for Reliable Switching Applications
£15.56
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GTIWUNG 10Pcs DC 12V Relay Module 1-Channel Relay Switch with Optocoupler Isolation Support High or Low Level Trigger, 12V Relay Board 1 Channel
GTIWUNG 10Pcs DC 12V Relay Module 1-Channel Relay Switch with Optocoupler Isolation Support High or Low Level Trigger, 12V Relay Board 1 Channel
£10.99
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High Power Four Way Relay Module Optocoupler Isolation 30A Control Panel for Select High Low Level Trigger (12VDC)
High Power Four Way Relay Module Optocoupler Isolation 30A Control Panel for Select High Low Level Trigger (12VDC)
£14.51
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10pcs DC 12V 30A Relay Module Relay Switch Optocoupler Isolation Relay Module
10pcs DC 12V 30A Relay Module Relay Switch Optocoupler Isolation Relay Module
£8.41
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8 Channel Optocoupler Relay Module Board High Low Trigger 5V 12V 24V Relay Module with Indicator Lights (5V)
8 Channel Optocoupler Relay Module Board High Low Trigger 5V 12V 24V Relay Module with Indicator Lights (5V)
£7.83
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4 Channel Relay Module with Optocoupler Isolation Suport High Low Level Triger Compatible 10A 5V 12V 24V Relay Module Board Shield(12V)
4 Channel Relay Module with Optocoupler Isolation Suport High Low Level Triger Compatible 10A 5V 12V 24V Relay Module Board Shield(12V)
£6.29
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Ejoyous 2 Channel Relay Module With Optocoupler, DC Relay Module Expansion Board High and Low Trigger With LED Warning Light for Special Sensor Shield (12V)
Ejoyous 2 Channel Relay Module With Optocoupler, DC Relay Module Expansion Board High and Low Trigger With LED Warning Light for Special Sensor Shield (12V)
£5.61
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❥❥High Power One Way High/Low Level Trigger Optocoupler Isolation Relay Module, 30A YYG-2 DC24V, Performance, Anti-Interference for Stable (12VDC)
❥❥High Power One Way High/Low Level Trigger Optocoupler Isolation Relay Module, 30A YYG-2 DC24V, Performance, Anti-Interference for Stable (12VDC)
£6.18
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AEDIKO 8 Channel Relay Module DC 12V Relay Switch with Optocoupler Isolation High/Low Level Trigger
AEDIKO 8 Channel Relay Module DC 12V Relay Switch with Optocoupler Isolation High/Low Level Trigger
£14.26
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Valefod DC 5V Relay Module 1-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger, Pack of 10
Valefod DC 5V Relay Module 1-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger, Pack of 10
£12.99
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12V Relay Board, 2 Channel Optocoupler Relay Module High and Low Level Trigger(12V)
12V Relay Board, 2 Channel Optocoupler Relay Module High and Low Level Trigger(12V)
£4.18
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SEAFRONT Pulse Counter Relay Board Multifunctional PCB Relay Module with Optocoupler 0.1S to 9999999.9S 0.01S 1 Channel Relay Module (-1013220246111)
SEAFRONT Pulse Counter Relay Board Multifunctional PCB Relay Module with Optocoupler 0.1S to 9999999.9S 0.01S 1 Channel Relay Module (-1013220246111)
£8.37
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4 Channel Design Relay Module Patch Optocoupler Isolation 30A Relay for Smart Home PLC Automatic Control,Industrial System Control, Internet of Things Control (12V)
4 Channel Design Relay Module Patch Optocoupler Isolation 30A Relay for Smart Home PLC Automatic Control,Industrial System Control, Internet of Things Control (12V)
£10.69
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