All Categories
History
This section provides an overview for relay modules as well as their applications and principles. Also, please take a look at the list of 11 relay module manufacturers and their company rankings. Here are the top-ranked relay module companies as of December, 2024: 1.Calibration Technologies, Inc, 2.Lowell Manufacturing Company, 3.NSM Solutions.
Table of Contents
A Relay Module is a component often used in electronic systems to control electrical signals, particularly in coordination with microcontrollers.
Operated by an electromagnetic coil, it facilitates the switching of power in electrical contacts. This allows it to control high currents or voltages using only small currents or voltages. Relay Modules are primarily found in industrial automation systems, robotics, the automotive industry, and various other electronic devices where control of power and components is necessary.
Upon receiving a triggering signal, the Relay Module activates its internal switch, enabling it to either open or close another electrical circuit. This feature makes it an effective safety or control device. It can detect abnormal currents or voltages and adjust the power supply accordingly at the correct time. Thanks to its high reliability and critical role in electrical circuit control and protection, Relay Modules have become a staple in diverse electrical control applications.
*Including some distributors, etc.
Sort by Features
Sort by Area
Calibration Technologies, Inc. (CTI), established in 2004, is a manufacturer based in Columbia, Missouri, specializing in gas detection equipment and solutions. The company’s product offerings include a range of gas detectors, both fixed and portable. Fixed detectors cater to specific gases such as ammonia and carbon dioxide, while portable variants are available in wearable and handheld formats, capable of detecting single or multiple gases. The company also supplies gas detection control panels suitable for outdoor applications, along with calibration gas. These products find applications in harsh environments, such as bottling facilities, cold storage buildings, food processing plants, fishing vessels, and ice rinks.
Lowell Manufacturing Co., started in 1947 and based in Missouri, USA, is a manufacturer of racks, power, and audio products. Its power products include power strips, sequencers, and switches, while the audio products include intercoms, loudspeakers, and amplifiers. The company also stocks accessories such as rack drawers, shelves, and panels and serves several markets, including broadcast, entertainment, and education. The company’s racks and enclosures are manufactured in the United States using certified U.S. steel. It can make custom audio products and uses third-party testing laboratories like Intertek and Underwriters Laboratories to ensure the products meet specific safety standards.
Wonke Electric Co., Ltd, established in 1999, is an electrical engineering manufacturer based in China specializing in manufacturing terminal blocks and air fan filters. The company offers a range of products, including terminal blocks, air fan filters and heavy-duty connectors, among others. Their products are mainly used in electronic equipment, machine building, plant engineering, and the process industry. Wonke Electric aims to help plants meet high standards of safety, quality, and performance through their products and services. The company’s research and development team enables them to provide customized solutions that cater to different customer requirements.
elmex Controls Pvt Ltd. has been a manufacturer of electrical components, founded in 1963 and headquartered in Vadodara, Gujarat, India. Specializing in terminal blocks, its offerings span screw, spring, and push-in terminal blocks, facilitating wire and cable connections. Additionally, the company provides an array of connectors, from wire-to-wire and wire-to-board to cable-to-cable connectors, serving various electrical component linkage needs. Complementing its range, the company offers essential components like fuses, switches, and relays for safeguarding and managing electrical circuits. Its pursuit of quality in operations and products has earned them several certifications such as ISO 9001, ATEX, DEMKO, and ISO 14001.
Geya is an electrical equipment manufacturer established in China in 2007. It produces electrical control devices, low voltage protection devices, solar energy equipment, and circuit breaker SKDs in compliance with CE, UL, and other international certification standards. The company's ISO 9001-certified factory has a production capacity of over 100,000 parts per month, it offers OEM and ODM services for the development of custom solutions, and it exports to over 30 countries.
Finder Relays, Inc., established in 1954 and headquartered in Almese, Torino, Italy, is a manufacturer of electromechanical and electronic devices for the residential, commercial, and industrial sectors. Some of its offerings include relays, energy meters, lighting products, and room thermostats. The company provides solutions for the residential, commercial, and industrial sectors on a global scale through an extensive network of sales subsidiaries spanning 28 countries, and has established over 80 distribution partnerships worldwide. All of its products are manufactured in its European facilities located in Italy, France, and Spain.
Rockwell Automation, Inc. was founded in 1903 and is headquartered in Milwakee, WI. Rockwell Automation provides industrial automation and digital transformation solutions around the world. Rockwell Automation operates through their intelligent devices, software & control, and lifecycle services segments with both hardware and software products and services. The Intelligent Devices segment offers drives, motion, safety, sensing, industrial components, and configured-to-order products. The Software & Control segment provides control and visualization software and hardware, information software, and network and security infrastructure solutions. The Lifecycle Services segment provides consulting, professional services and solutions, and connected and maintenance services through independent distributors.
Widmuller Group, established in 1946 in Waldshut, Germany, is a manufacturer and supplier of industrial automation components. Its product range includes switches, communication modules, sensors, and connectors, encompassing industrial connectors, panel mount connectors, and DIN rail connectors. The company's offerings cater to diverse industries, spanning automotive, machine tools, building automation, and energy sectors. Devoted to delivering quality industrial automation components, the company provides additional services like technical support, training, and customization. As a certified ISO 9001:2015 company, it emphasizes furnishing customers with quality products and services.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Calibration Technologies, Inc |
38.5%
|
| 2 | Lowell Manufacturing Company |
30.8%
|
| 3 | NSM Solutions |
7.7%
|
| 4 | HARDWARIO |
7.7%
|
| 5 | Wonke Electric Co., Ltd |
7.7%
|
| 6 | GEYA |
7.7%
|
Derivation Method
The ranking is calculated based on the click share within the relay module page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
2 | 40.0% |
|
China
|
2 | 40.0% |
|
India
|
1 | 20.0% |
