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5V 10A PCB Mount Sugar Cube Relay - SPDT5V Relay Cube This is a 5V Relay Cube. This cube relay has an operating voltage of 5V and has a max current capacity of 7A. This makes it most suitable for use in microcontroller-based devices. These relays can be used for switching High voltage...
- Rs. 31
Rs. 39- Rs. 31
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16 Channel 12V Relay Module Board16 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,...
- Rs. 527
Rs. 720- Rs. 527
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4 Channel 12V Relay Board4 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...
- Rs. 157
Rs. 236- Rs. 157
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2 CH 12V Relay Board2 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...
- Rs. 76
Rs. 99- Rs. 76
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4 Channel Solid State Relay4 Channel Solid State Relay 4-Channel Solid-State Relay is somewhat similar to that of a mechanical relay & the difference is that there is no moving contact in a Solid-State Relay. Here we make use of a Phototrriac coupler to turn it ON and...
- Rs. 433
Rs. 784- Rs. 433
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Waveshare Modbus RTU 8 Channel Relay Module RS485Waveshare Industrial Modbus RTU 8 Channel Relay Module RS485 This is an industrial 8-channel Modbus relay module that is controlled by an RS485 bus and uses the Modbus RTU protocol. This 8 channel Modbus relay board has embedded protection circuits like power isolation, ADI...
- Rs. 3,082
Rs. 3,950- Rs. 3,082
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5V 8 Channel SSR Module5V 8 Channel SSR Module The 5V 8-Channel Solid-State Relay is somewhat similar to that of a mechanical relay & the difference is that there is no moving contact in a Solid-State Relay. Here we make use of a Phototrriac coupler to turn it ON...
- Rs. 917
Rs. 1,399- Rs. 917
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JQX-15F(T90) Coil Voltage DC 24V 6 Pin Power RelayJQX-15F(T90) Coil Voltage DC 24V 6 Pin Power Relay This is a JQX-15F (T90) 24VDC 6Pin 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...
- Rs. 79
Rs. 99- Rs. 79
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8 Channel 5V Relay Board8 Channel 5V Relay Board It is an 8 Channel Isolated 5V 10A Relay Module, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc. It can also control various appliances and other types of...
- Rs. 236
Rs. 399- Rs. 236
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NE555 6V Delay TimerNE555 Delay Timer The NE555 delay timer switch is manufactured for high-performance timing and based on the NE555 chip. This delay switch module is a monostable switch module that finds itself very useful in vehicle-based applications like delay to prevent car ignition. The NE555 delay timer...
- Rs. 64
Rs. 129- Rs. 64
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5V 30A 1-Channel Relay Module5V 30A 1-Channel Relay Module The 5V 30A 1-Channel Relay Module comes with LED indicators, It can be controlled by microcontrollers such as Arduino, AVR, PIC, ARM any other microcontroller operating at 5V. The relay module uses an authentic quality mechanical relay and the industry's top...
- Rs. 149
Rs. 199- Rs. 149
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5V 2 Channel SSR Module5V 2 CHANNEL SOLID STATE RELAY 5V 2-Channel Solid-State Relay is somewhat similar to that of a mechanical relay & the difference is that there is no moving contact in a Solid-State Relay. Here we make use of a Phototrriac coupler to turn it ON and...
- Rs. 214
Rs. 354- Rs. 214
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Single CHANNEL 12V RELAY MODULE 30AMPSingle 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,...
- Rs. 149
Rs. 250- Rs. 149
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SLA 12VDC 4Pin 30A Power RelaySLA 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...
- Rs. 69
Rs. 81- Rs. 69
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4 Channel Relay Wireless Module4 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....
- Rs. 727
Rs. 1,000- Rs. 727
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Multifunctional DC 24V 1 Channel Relay Module Low LevelMultifunctional DC 24V 1 Channel Relay Module Low Level The Multifunctional DC 24V 1 Channel Relay Module is designed to control various devices and loads. It uses a high-quality double-sided FR-4 circuit board for better performance and durability. The module has clear power and...
- Rs. 59
Rs. 74- Rs. 59
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Multifunction Delay Relay Switch ModuleMultifunction 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.
- Rs. 447
Rs. 585- Rs. 447
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5V 16 Channel Relay Module5V 16 Channel Relay Module This is a 16-channel 5V relay module that can be used as a microcontroller development board module and also as appliance control, and PLC extended output. The relay module is equipped integrated with the best industrial quality optocouplers. This makes...
- Rs. 526
Rs. 720- Rs. 526
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12 V 1 Channel Relay Board12 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,...
- Rs. 47
Rs. 66- Rs. 47
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5 Pin 48V DC Coil Voltage Electromagnetic Power Relay5 Pin 48V DC Coil Voltage Electromagnetic Power Relay The 30A SLA-12VDC-SL-A High Current Coil Power PCB Relay. The 30A 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. This power...
- Rs. 74
Rs. 95- Rs. 74
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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.
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