12 V 1 Channel Relay Board Relay board module is used for controlling higher current loads from your microcontroller development board, pc parallel port or Arduino Uno. This board has one (1) on-board relay which can switch up to 7amps. Relays terminals (c, nc, no) are accessible through screw terminals which makes wiring up the board very easy. The relay is safely driven by transistor bc547 hence your input device, such as Arduino, is protected from relay circuit. There is a freewheeling diode which will further protect your microcontroller from relay kickback. This is a 12v 1-channel relay interface board which can be controlled directly by a wide range of microcontrollers such as Arduino, avr, pic, arm, 8051 and so on. Package Includes: 1 x 12 V 1 Channel Relay Board Specifications Operating Voltage  12V Number of Channels  x 1  Compatibility  Arduino, avr, pic, arm, 8051 and so on Dimensions  5 x 3 x 1cms  Weight  5 grams

12V 1 Channel Relay Module (10Amp) A 12V 1-channel relay module is an electronic module that controls an electrical circuit with an electromagnetic switch. To turn on or off devices that operate at 10A or lower current, it can be controlled by a microcontroller, a switch, or other digital circuits.  This is a small and simple one-channel relay board that runs on 12V. It can be used to directly operate one 240V power appliance from Arduino, Raspberry Pi, and other microcontrollers or low voltage circuits. Ideal for switching 240V appliances such as lights, fans, and so on, as well as high-power motors at lower voltages. A 12V power source, a control circuit, and a relay with a switching capability of 10A are typical components of a relay module. You can use the control circuit to transmit a digital signal (high or low) to the relay, which will then open or close the circuit. Relay modules are widely used in automation and control systems such as home automation, robotics, and industrial control. They are also utilised in automotive applications, such as regulating lighting and other electrical components in a vehicle. Also check 12V 4-Channel Relay Board offered by Iotcart. The relay board is designed to control various appliances and equipment with a large current, and it can be directly controlled by Micro-controllers such as Arduino, 8051, AVR, PIC, DSP, ARM, MSP430, and TTL logic. Package Includes: 1 x 12V 1 Channel Relay Module  Specifications: Trigger Voltage (VDC) 12 Trigger Current (mA) 20 Switching Voltage (VAC) 250@10A Switching Voltage (VDC) 30@10A Operating Temperature (°C) -40 to 85 Opt. Relative Humidity(RH) 20% ～ 85% Storage condition (℃) – 65 to 125 Dimensions 48x29x17mm Weight   15g

12V 4CH Relay Board This is a 12V 4-Channel Relay interface board. It can be used to control various appliances and other equipment with large current. The 4 channel relay board can be controlled directly by Micro-controller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic). This is useful in creating a central hub from where multiple remote loads can be powered. It is useful for tasks like home automation where the module can be placed in the main switchboard and can be connected to loads in other parts of the house and can be controlled from a central location using a microcontroller. read our blog explaining the relay module working principle, which provides detailed information about relay modules, their working principles, and various aspects related to their construction and applications. Applications: Switching mains loads Home automation Battery backup High current load switching Package Includes: 1 x 12V 4CH Relay Board Specifications Operating Voltage  12V  Colour Multicolour  Number of Channels  x 4 Compatibility Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) Dimensions 5 x 3 x 1 cms  Weight  5 grams

4 Channel Relay Wireless Module This is a 4 channel relay module which can be controlled by a wireless remote through a wireless RF link. The wireless board can operate within a range of 50m when the remote is in line of sight and around 25m when indoors. The RF link on this board works on the 433 MHz frequency.  How to link the 4 channel relay with remote? To link the remote and relay, power relay board, hold down the button for about 1 second to learn to let go. Learn indicator light flashes, press the button on the remote control to learn indicator light flashes after a few off, both represent learning success.

Time Delay Relay Module This NE555 Delay Monostable Switch Module item is a timer switch module, based on the NE555 chip, a high-performance timing CPU design. The power indicator LED and switch trigger timing indication LEDs. Timing from microseconds to long hours. Applicable to vehicle equipment-delay to prevent car ignition, prevention of high sudden current to burn components and devices. This NE555 Delay Monostable Switch Module item is a timer switch module, based on the NE555 chip, a high-performance timing CPU design. The power indicator LED and switch trigger timing indication LEDs. Timing from microseconds to long hours. Applicable to vehicle equipment-delay to prevent car ignition, prevention of high sudden current to burn components and devices. This is a monostable generator based on the NE555 integrated circuit. It has an adjustable delay time from 0 to 10 seconds using the potentiometer or by changing the capacitance. It is also capable of controlling the device below 220V/10A. Also, read our blog on the Application of Relay detailing what a is Relay- Working, its Applications & Types. Package Includes: 1 x Time Delay Relay Module Specifications Module  NE555 chip Input voltage DC 12V Adjustable time 0-10 seconds AC Control voltage: 250V/max. 10A Max. load  2200W DC Control Voltage 30V/max. 10A Dimensions  70 x 21 x 18mm Weight  5 grams

16 Channel 12V Relay Module Board This is a 12V 16 Channel Relay Module with Light Coupling LM2576 Power Supply, Be able to control various appliances and other equipment with a large current. It can be controlled directly by a Microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, MSP430, TTL logic). This is a 12V 16-Channel Relay interface board and each one of the individual relays needs 15-20mA Driver Current. The board features an indication LED for Relay output status and the standard interface that can be controlled directly by many widely used microcontrollers like Arduino etc. The 12V electromechanical relay module with an AC contact capacity of 250V which also include light coupling protection(optocoupler) for isolation of control circuitry. The plate load power module doesn’t need an external power supply. It supports all SCM drives. The LM2596S buck chip in this relay module shows a slight fever which is a normal phenomenon as relays, long working hours have normal fever characteristics. 4 relay load power to give leave some margin, should avoid high-power (about 2000W) and long working environment, there will be some impact on the life of the product. Read our blog explaining What are Relays - Working, Applications & Types Applications: Widely used for all MCU control Industrial sector PLC control Smart home control. Package Includes: 1 x 12V 16CH Relay Board Specifications Operating Voltage  12V Number of Channels   16  Dimensions  11 x 9 x 3cms  Weight  5 grams

Single Channel 12V Relay Module 30A This 1 Channel 12V Relay Module is capable of actuating 240VAC/30A circuits safely. Eliminating the dangers of high current circuits for users. read our blog explaining applications of relays, which provides detailed information about relays, including their definition, working principle, construction, contact types, various types of relays, and their applications. Packaging Includes: 1 x 1 Channel 12V Relay Module Specifications Operating Voltage 12VDC Current Control 30A Voltage Control (AC) 240V Voltage Control (DC) 30V Dimensions  40 x 34 x 22mm Weight  5 grams

2 CH 12V Relay Board This 2 Road/Channel Relay Module (with light coupling) 12V module meets the safety standard as control areas and load areas have the isolation groove. It is important that the microcontroller share ground with the relay board along with other control signals else it will not able to control the relay.  Very useful project for applications like Micro-Controller based projects, Remote controllers, Lamp on Off, and any circuits which required isolated high current and high voltage switching by applying any TTL or CMOS level voltage.  read more : What is Relay? - Working, Applications & Types

Multifunction Delay Relay Switch Module 12 voltage relay switch, easy to use. With emergency stop function (“stop” button) and reverse polarity protection which can avoid burning by reverse connection. Package Includes: 1 x One Way Relay Module Specifications: Display  Yes  Dimensions  11 x 9 x 5cms  Weight  100 grams

4 Channel 12V Relay Board This 4-channel 12 V relay module is a low pull, high release relay module and features energization status indicator light, release status led is off. By default, this is a 5V relay module and uses jd-vcc for the relay power and is compliant with international safety standards, control, and load areas isolation trenches. The 4 channel relay module can be used to control various appliances and other types of equipment with large currents. The maximum output of the relay module is AC250V 10A and DC5V 10A. The four-channel can be used to switch multiple loads at the same time since there are four relays on the same module. This is useful in creating a central hub from where multiple remote loads can be powered. It is useful for tasks like home automation where the module can be placed in the main switchboard and can be connected to loads in other parts of the house and can be controlled from a central location using a microcontroller. Note:  If either of the relays does not turn on: The contacts might be welded due to overcurrent/arcing. Shaking the module firmly might help unstick the contacts The driver circuitry might have been damaged due to overvoltage. Input polarity might be incorrect. Jumper might not have been moved to the correct position  Applications Switching mains loads Home automation Battery backup High current load switching read our blog explaining the relay applications, provides comprehensive information about relays, their working principles, construction, and various types. Package Includes: 1 x 4 channel 12 V Relay Specifications: Number of Channels  4 Operating Voltage  12V MAx Output  AC250V 10A and DC5V 10A Dimensions  5 x 3 x 1cms  Weight  5 grams

SLA 12VDC 4Pin 30A Power Relay It is an SLA-12VDC-SL-A 4Pin 30A Power Relay. The relay is switched with the help of a small signal from a microcontroller like an Arduino. This relay can be used to drive 30A devices. Applications: Used for power switching in Electrical Heater. Used for power switching in ventilators. Used for power switching in air conditioning, Refrigerating. Used for power switching in automobile Used for power switching in household appliances. Package Includes: 1 x SLA 12VDC 4Pin 30A Power Relay Specifications: Operating Voltage (VDC) 12V Supply Current (A) 0.077 Operating Temperature (°C) -25 to 70 Dimensions 3 x 2 x 1cms Weight  5 grams

1-CH 12V Relay Board This is a small and easy to use 1 channel relay board that operates on 12V. Use it to control one 240V power appliance directly from Arduino, Raspberry Pi, and other microcontrollers or low voltage circuits. Perfect for switching 240V appliances – lights, fans, etc, and even high power motors at lower voltages. The board uses a high-quality relay, which can handle a maximum of 10A/250 V AC or 15A/125V AC. Each relay has all three connections – Common, Normally Open, Normally Closed brought out to 3 pin screw terminals which make it easy to make and remove connections. The board has a power indication and a relay status LED to ease debugging. The board can accept control inputs within a wide range of voltages from 4V to 12V. Power input and relay control signals are brought to header pins on the board. Hence, the board can be easily interfaced with our development boards using our female-to-female jumper wires. Package Includes: 1 x 1-CH 12V Relay Board Specifications: Trigger Current 20mA Switching Voltage AC250V 10A Switching Voltage DC 30V 10A Operating Temperature -40°C to 85°C Opt. Relative Humidity(RH) 20% ～ 85% Storage condition – 65°C to 125°C Dimensions (mm) 48 x 29 x 17 (L x B x H) Weight 15 gm

12V 2 Channel Relay Board 2 channel 12V relay module Relay outputs: NO: normally open relay interface COM: common interface relays. NC: normally closed relay interface Working voltage 12V High / Low-level changeable Fault-tolerant design, even if the control line is broken, the relay will not operate. Package Includes: 1 x 12V 2CH Relay Board Specifications Operating Voltage  12V Number of Channels  x 2  Dimensions  3 x 2 x 1cms  Weight  5 grams

4 Channel 12V ULN2003 based Relay Board Relay board module is used for controlling higher current loads from your microcontroller development board, PC parallel port or Arduino Uno. This board has four (4) on-board relay which can switch up to 7Amps. Relays terminals (C, NC, NO) are accessible through screw terminals which makes wiring up the board very easy. The relay is safely driven by ULN2003 IC hence your input device, such as Arduino, is protected from the relay circuit and IC will further protect your microcontroller from relay kickback. This is a 12V 4-Channel Relay interface board which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, 8051 and so on. It can control both AC and DC appliances such as Solenoids, Motors, lights, fans, etc- High-quality screw terminals (Terminal Block) provided (C, NC, NO) for quick and easy connection- Input Signal Pin connected to Burg stick for easy accessibility- LED Status indicators to indicate the relay ON/OFF status.- Mounting holes provided Package Includes: 1 x 4 Channel 12V ULN2003 based Relay Board Specifications Power supply 12V (Vcc) Number of Channels  4  Colour  Multicolour  Dimensions  5 x 3 x 1 cms  Weight 5 grams

1 Channel 12V Relay Module with Optocoupler The ADIY 1-Channel Relay Module with Optocoupler operates on a 12V power supply. This module offers bidirectional isolation and enables control of the relay pull through a choice of high or low levels, based on user requirements. It features a genuine high-quality power relay, a subminiature package optocoupler, a high-power high-voltage transistor, and red and blue signal indicators. The module's layout board is thoughtfully designed to ensure comprehensive stability and reliable performance, making it suitable for a wide range of power control applications. The maximum load for the normally open interface is AC 250V/10A and DC 30V/10A. Moreover, it utilizes high-quality ultra-small optocouplers with excellent anti-interference capabilities and stable performance, requiring only a trigger current of 3mA.