A relay is used wherever a small low power device or power supply needs to switch on a much larger one, usually completely isolated from the signals power source, or at a much higher voltage than the signal could provide.
100A SSR 3-32VDC IN 24-480VAC OUT
This single phase solid state relay features a Dielectric strength of up to 2500V, photo isolation, zero cross polarization or random turn-on. These models come with..
The Relay is the most common used module in actual applications such as home automation, and sometimes you need to control large current such as the air conditioning/water heater. That..
Din Rail 2 Relay 12V Coil
This 12V Dual Relay module is designed for current amplification and isolation protection of output loads. Applicable to PLC, microprocessor systems and time relays etc, amp..
Din Rail 4 Relay 12V Coil
This 12V 4 Relay module is designed for current amplification and isolation protection of output loads. Applicable to PLC, microprocessor systems and time relays etc, amplif..
Easy Mini PLC IO Controller
The Easy 412-DC-R Mini PLC IO Controller is an electronic control relay with built-in logic, timer, counter and time switch functions. This is a control and input device r..
ESP01 + Relay Module
This ESP-01 Relay Module based on AI-Thinker ESP-01/01S WIFI module. It is designed for smart home, internet of thing and others DIY project. With this smart relay, you will easy..
Keys USB Relay 10A 250V
This USB Relay module from Keys uses HID technology which requires no additional drivers and therefore makes it a plug and play device for all of your projects. The module sup..
Mini D1 Relay Shield
You can use this module if you want to control the AC power (lights, home equipments), for WIFI D1 mini board. This is a very common Contact Relay for control VAC 110/220V (10A) ..
Mini Rboard ATMega328P Development Board For Arduino
Mini RBoard is an Arduino compatible mainboard, which is equipped with a relay, a nRF24L01 interface and a 433M RF Receiver interface. It can be u..
Pololu RC Switch + Relay
This Pololu RC Switch consists of a single-pole, double-throw (SPDT) power relay and a control circuit that measures incoming radio control (RC) signals, making it easy to co..
Qwicc 4 Way Relay Board
The Qwiic Quad Relay is a product designed for switching not one but four high powered devices from your Arduino or other low powered microcontroller using I2C. It’s four rela..
Relay 16 Way Module - 5V Opto Isolated
The 16 Way relay can trigger high voltage, high current load such as Motor, Lamps , AC load. It can be controlled by microcontrollers such as PIC, Arduino , Ras..
Relay 2 Channel - Opto Isolated
These are optically isolated relay modules having 5 Volt cube Relays. The relays are driven by a Opto-coupler which provides isolation between your Micro-controller, A..
Relay 240VAC @10 AMP
This 240V Relay at 10A, plays the role as a protector or a circuit switch. Because the relay has 8 Pins, DPDT, 2 NO, 2 NC, makes it suitable for various applications such as dome..
Relay 24V DC @ 10A
This 24V Relay at 10A, plays the role as a protector or a circuit switch. Because the relay has 8 Pins, DPDT, 2 NO, 2 NC, makes it suitable for various applications such as domesti..
Relay Module - Crowtail Connector
The SPDT relay module is a high performance single pole double throw relay that can operate by as much as 30A of current. When the relay does not work, COM and NC ha..
Relay Module 1 Relay - 5V 30A
This is 1 channel Relay module, can able to control various appliances, and other equipment with a BIG current for 30A (250VAC/30VDC).It can be controlled directly by mi..
Relay Module 1 Relay 12V 30A
This Relay module adopts a genuine high quality 30A relay. By using a optocoupler isolation chip, the relay has a strong driving ability, stable performance and has a tri..
Relay Module 2 Relay - 5V 30A
This is 2 channels Relay module, which is able to control various appliances, and other equipment with a BIG current for 30A (250VAC/30VDC). It can be controlled directl..
Solid State Relay - 4 Channel
Compared with the traditional mechanical relays, the Solid State Relay (SSR) has many advantages such as longer life, a much higher turn on/off speed and little or no no..
Solid State Relay - 240VAC 2A- 2 Channel
This is a two channel relay module featuring 2x Omron G3MB-202P solid state relays. This module is capable of switching an AC voltages between 100 and 240V at..
Solid State Relay 2A - 1 Channel
Compares with the traditional mechanical relay, the Solid State Relay (SSR) has many advantages: it has a longer life, with a much higher turn on/off speed and no noi..
SparkFun Qwiic Quad Relay
The SparkFun Qwiic Quad Relay is a unique power accessory board that has been designed for switching not one but four high powered devices from your Arduino or another low p..
SparkFun Qwiic Single Relay
Have you ever wanted to control something powerful or have you ever needed to turn on/off a high power device from your Arduino or another low powered microcontroller? The..