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.

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.

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.

8-CH 12V ULN2003 Based Relay Board The 8-CH 12V Relay can control any device just like a switch contact. Its contact is isolated from the driven circuit. Features: LED Indication of Relay ON. Power Indication LED. ULN2803 Relay Driving IC. ON/OFF Power Switch. Direct input from 3-5V Microcontroller for relay control. Output terminal for relay contacts. Provision of the male header for wire connection. Powered from external 12V or from the male header. Contact Rating: 5A at 240V AC Note: 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.

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.

12V 8 Channel Relay board This 12V 8 Channel Relay board meets the safety standard as control areas and load areas have the isolation groove. Optical coupling isolation module. The triggering of the 8-Channel Relay Module is reliable and more stable. The double FR4 circuit board design is a high-end SMT process. It has power and relay operation instructions. Relays terminals (C, NC, NO) are accessible through screw terminals which makes wiring up the board very easy. The inputs of the 8 Channel 12V Relay Module are isolated to protect any delicate control circuitry. A wide range of microcontrollers such as Arduino, AVR, PIC, ARM, and so on can control it. The use of such a high-voltage relay eliminates the risk of heating up the relay as electromechanical relays limit the current consumption in accordance with a voltage rating. Also, read our blog on What is Relay in Electrical explaining what is it, how does it works, its construction, different types of relays, and applications. APPLICATIONS: Control Solenoids Motors Bulbs and Lamp smart home control Freewheeling diode to protect your microcontroller. Also check 12V 16 Channel Relay Module with Light Coupling LM2576 Power Supply, suitable for controlling various appliances and equipment with a large current. It can be directly controlled by microcontrollers such as Arduino, 8051, AVR, PIC, DSP, ARM, MSP430, and TTL logic. Each relay on the board requires 15-20mA Driver Current, and there is an indication LED for Relay output status. The module features light coupling protection (optocoupler) for the isolation of control circuitry.

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.

12V Relay Cube This is a 12V Relay Cube. This cube relay has an operating voltage of 12V and has a max current capacity of 7A. This makes it most suitable for use in microcontroller-based devices like Arduino. It is an SPDT 12V Relay. Relays are used where it is necessary to control a circuit by an independent low-power signal, or where several circuits must be controlled by one signal. APPLICATIONS: Control Solenoids Motors Bulbs and Lamp Home Automation Projects Freewheeling diode to protect your microcontroller Also check 12V 1 Channel Relay Module with a 10A switching capability. It is an electronic module designed to control an electrical circuit using an electromagnetic switch.

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. Features: Equipped with high-current relay 10A@250VAC / 10A@30VDC 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 A freewheeling diode to protect your microcontroller Input Signal Pin connected to Burg stick for easy accessibility LED status indicators to indicate the relay ON/OFF status Mounting holes provided Signal input with a high-level signal, the common and often start conduction; The relay can directly control all kinds of equipment and load; One often opened a normally closed contact; Blue KF301 terminal line more convenient. Also check the Single CHANNEL 12V RELAY MODULE 30AMP available on Iotcart. The relay module is capable of actuating 240VAC/30A circuits safely and offers output modes for both Normally Open and Normally Closed configurations

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 Features: Dual Channels: Allows control of two separate devices. High Power Handling: Each relay can handle up to 10A at 120V AC or 7A at 240V AC. Optocoupler Isolation: Provides electrical isolation between the control circuit and the high-power devices. Compatibility: Can be used with various microcontrollers like Arduino, AVR, PIC, and ARM. Screw Terminals: Easy connection for the relay outputs. LED Indicators: Visual feedback for relay status. Compact Design: Small and lightweight, making it easy to integrate into projects. Wide Range of Applications: Suitable for controlling AC and DC appliances such as lights, fans, motors, and solenoids. Applications: Widely used for all MCU control, industrial sector, PLC control, smart home control Can be controlled directly by a wide range of microcontrollers