- Home Page /
- Industrial Supplies /
- Industrial Electrical /
- Controls & Indicators /
- Controllers /
- Motor Speed Controllers /
- C37 - Single Relay Board
0 ratings
Item #:
154219527
C37 - Single Relay Board
Item #:
154219527
LKR 7150
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Sunday, July 19
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Works directly with popular CNC hardware and software - just screw on your connections!
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Compact Design
The C37's small footprint makes it perfect for tight spaces, allowing easy integration into various projects without compromising on performance or functionality.
High Compatibility
Compatible with multiple microcontrollers and platforms, the C37 single relay board offers versatility, making it suitable for hobbyists and professionals alike in their automation projects.
Robust Safety Features
Equipped with protection against overloads and short circuits, the C37 ensures reliable operation, enhancing safety and longevity for all connected devices during use.
Product Details
| Item Weight | 0.5 lbs (230 grams) |
Who Should Buy?
-
Home Automation Users
Ideal for DIY enthusiasts looking to control lights and appliances remotely through simple relay operations.
-
Electronics Hobbyists
Great for circuit experiments and projects needing control of high power devices with low voltage signals.
-
Industrial Automation
Suitable for integrating with microcontrollers for controlling various machines and sensors in an industrial setting.
-
Advanced Programmers
Limited functionality compared to more complex relay systems, lacking features for highly customized automation solutions.
-
Large Scale Applications
Not suitable for projects requiring multiple relays or robust control mechanisms in larger automation setups.
-
Safety-Critical Systems
Inadequate for applications like medical devices or safety systems requiring high reliability and fail-safe operation.
Product Description
C37 - Single Relay Board
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the C37 - Single Relay Board used for?
Answer: The C37 - Single Relay Board is designed to control electrical devices or circuits using a low-voltage digital signal. It is particularly useful for automation projects, home automation, or any scenario where remote control of an electrical appliance or system is required. Leveraging a relay, this board allows a small current to activate a larger current, making it suitable for powering motors, lights, or even larger electrical appliances. Users can integrate it into platforms like Arduino or Raspberry Pi for varied DIY electronics applications. -
Question:
How does the C37 - Single Relay Board work?
Answer: The C37 - Single Relay Board operates by receiving a low-voltage signal from a controller, which energizes the relay coil, closing the circuit and allowing higher voltage devices to operate. This relay acts as an electrically operated switch, providing complete control over the circuit. Users can program their microcontroller to toggle the relay based on specific conditions, making it applicable in scenarios like turning lights on and off based on time or sensor input. -
Question:
Is the C37 - Single Relay Board compatible with Arduino?
Answer: Yes, the C37 - Single Relay Board is fully compatible with Arduino and similar microcontrollers. Users can easily connect the relay board to an Arduino through digital output pins and manage it via simple code. This compatibility allows hobbyists and developers to implement automation projects seamlessly, such as controlling appliances or reading sensor data to trigger the relay for various applications in smart home environments. -
Question:
What are the specifications of the C37 - Single Relay Board?
Answer: The C37 - Single Relay Board typically features a rated control voltage of 5V and can manage loads up to 10A at 250VAC or 30VDC. It includes opto-isolation for enhanced safety, preventing back EMF from damaging your microcontroller. Users appreciate these specifications for reliable performance and safe circuit handling in projects where control of high-power devices is necessary, making it a staple in both DIY and professional electronic applications. -
Question:
Can the C37 - Single Relay Board control AC devices?
Answer: Absolutely! The C37 - Single Relay Board is specifically designed to control AC devices safely and efficiently. By connecting the relay to an AC circuit, users can manage household appliances, lighting systems, or heating units. This capability is invaluable for automating everyday tasks, such as setting up a programmable schedule to control HVAC systems or lights based on time, improving energy efficiency. -
Question:
What safety features does the C37 - Single Relay Board provide?
Answer: The C37 - Single Relay Board incorporates several safety features, including opto-isolation, which protects the microcontroller from high voltages. Additionally, it features protective components to handle back EMF generated from inductive loads, thus preserving the integrity of your circuit. These safety features make it ideal for projects that involve controlling high-power devices, giving users peace of mind when engaging in electrical automation. -
Question:
How can I program the C37 - Single Relay Board with Arduino?
Answer: Programming the C37 - Single Relay Board with Arduino is straightforward. Begin by connecting the relay module to the Arduino’s digital I/O pins and ensure to connect the VCC and GND pins correctly. You can write a simple code using the Arduino IDE that sends a HIGH signal to turn the relay on and LOW to turn it off. This allows you to control devices like lights or motors with various conditions, turning your Arduino into a smart controller for numerous applications. -
Question:
What type of devices can I control with the C37 - Single Relay Board?
Answer: You can control a variety of devices with the C37 - Single Relay Board, including lights, fans, motors, and appliances such as TVs or coffee makers. Any device that runs on AC voltage within the relay's rated specifications can be managed effectively. This broad capability allows users to implement home automation systems, industrial applications, or experimentation in robotics, providing countless opportunities for creative projects. -
Question:
Can I use multiple C37 - Single Relay Boards together?
Answer: Yes, multiple C37 - Single Relay Boards can be utilized together for larger automation projects. Since each relay can be controlled by different digital output pins from a microcontroller, users can coordinate numerous devices simultaneously. This setup is particularly beneficial for complex projects where multiple circuits need to be controlled in sync, such as in smart homes managing lighting and HVAC systems collectively. -
Question:
Where can I buy the C37 - Single Relay Board in Sri Lanka?
Answer: You can purchase the C37 - Single Relay Board from Ubuy, which offers a reliable shopping experience for electronics and components. Ubuy provides a variety of options, often featuring multiple stock levels, ensuring you find the right product for your projects. With a user-friendly interface and dedicated customer support, Ubuy is a preferred option for getting your hands on the C37 relay board in Sri Lanka.
CNC4PC Motor Speed Controllers Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
0%
-
4 Star
100%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Platform Trust & Buyer Confidence
MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
LM
Leila
Verified buyer
“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
LKR 7150
Order now and get it around Sunday, July 19
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Compatible with popular CNC hardware and software.
- Easy screw-on connections for hassle-free wiring.
- Acts as a switch for powering various hardware.
- Controls one independent AC or DC device.
- Ideal for spindles, coolant pumps, and electro valves.
- Simplifies your CNC projects with reliable performance.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.