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1 Channel 5V Active Low Relay Module1 Channel 5V Active Low Relay Board The 5V 1-channel relay module works with a 5V to 12V TTL control signal. It is perfect for controlling home appliances and for use in microcontroller projects. the 5V relay module can handle a 220V AC load,...
- Rs. 38
Rs. 69- Rs. 38
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FOFEK 24V-380V 40Amp DA Solid State Relay ModuleFOFEK 24V-380V 40Amp DA Solid State Relay Module This is SSR-40DA Solid State Relay Module 3-32VDC/24-380VAC 40A. A solid-state relay (SSR) allows you to control high-current AC loads from lower-voltage DC control circuitry. Solid-state relays have several advantages over mechanical relays. One such advantage...
- Rs. 231
Rs. 344- Rs. 231
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1-CH 12V Relay Board1-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...
- Rs. 45
Rs. 79- Rs. 45
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5V 1 Channel made in INDIA - GL Make5V 1 Channel made in INDIA - GL Make This 1-channel relay board operates on 5V. Can be used directly to control 240V power appliances from most of the microcontrollers and other control system circuits. Perfect for switching 240V appliances like lights, fans, etc....
- Rs. 34
Rs. 39- Rs. 34
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8-CH 12V ULN2003 Based Relay Board8-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...
- Rs. 409
Rs. 518- Rs. 409
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Four CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE4 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,...
- Rs. 149
Rs. 259- Rs. 149
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12V 2CH Relay Board12V 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...
- Rs. 80
Rs. 101- Rs. 80
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Save Rs. 21
A relay is an electrically operated switch that controls the flow of electrical current between two separate circuits. It is a switch that is controlled using electromagnetic signal. A relay switch provides electrical isolation between control and load circuits, enabling safe and efficient switching of electrical loads.
The working principle of a relay is based on electromagnetic principles. When current flows through the relay's coil, it creates a magnetic field that attracts a movable armature connected to contact points. This electromagnetic force causes the contacts to open or close the secondary circuit. When the control current is removed, a spring returns the armature to its original position, reversing the contact state and controlling the connected load circuit.
Relay boards are used in a wide range of applications. These include automotive systems, industrial automation, home appliances, HVAC systems, traffic control, motor drives, and electrical protection equipment. They are essential in telecommunications, aerospace, and renewable energy systems where reliable electrical switching is required.
Browse diverse range of high-quality 12V, 24V, & 5V Relay modules in 1 to 16 channels.
We prioritize customer satisfaction. Enjoy benefits such as worldwide shipping, secure payments, and a 7-day return policy. Our technical support team is ready to assist you in making the right choice for your projects.
Elevate your electronics projects with reliable and efficient relay switches from Robocraze.
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1. What is a relay?
A relay is an electronic switch used to cause switching action of different components with an electrical signal as opposed to a mechanical actuation. These modules are either done purely electrically or electromechanically.
2. What are the types of relays?
There are many different types of relays in electronic modules - each used in different scenarios or applications
- Attraction Type Electromagnetic Relays
- Induction Type Relays
- Magnetic Latching Relays
- Solid State Relays
- Hybrid Relay
- Thermal Relay
- Reed Relay
3. What ways can I use relays in a robotics project?
Relays can be used in places where mechanical switches are generally used. This enables you to implement wireless control over those switches and thereby make the whole project/product more sophisticated. Relays are also used in places where automations are used, mainly acted upon by a trigger.
4. What is a bad relay?
A bad relay would be a relay that may have been internally damaged. In electromechanical relays, sometimes the mechanical actuator can break or stop working due to build up of dust over time. In a solid state relay, the transistor that operates the relay could get damaged if the voltage supplied to the relay was much greater than what the relay was designed to handle
5. What is a relay switch? Is it the same as a relay?
Relay switches are just another colloquial term used for relay. As relays are used for switching on/off circuits electrically, it can be sometimes referred to as a relay switch - generally indicating that a mechanical switch was replaced by a relay.
6. Where can I buy relays online?
Relays can be obtained from almost all online stores including Robocraze. But specific types of relay may vary in availability.
7. Where can I buy relays at a shop near me?
Relays are available in most electronic component stores. However more specific types of relay may be a bit more difficult to find
8. What is the cost of relays in India?
Relays can vary in cost substantially depending on the manufacturer, rating, extra features like circuit protection, material used, etc.
