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This section provides an overview for door lock switches as well as their applications and principles. Also, please take a look at the list of 11 door lock switch manufacturers and their company rankings. Here are the top-ranked door lock switch companies as of January, 2025: 1.OPTEX CO., LTD., 2.FUJI ELECTRIC INDUSTRY CO., LTD., 3.DeltrexUSA.
Table of Contents
Engaged in research on nitride semiconductor growth using the MBE method at Waseda University Graduate School. After graduating from graduate school in 2016, he joined a non-ferrous metal manufacturer.
Engaged in equipment maintenance and engineering work at metal smelting plants. Moved to a chemical manufacturer in 2022. Engaging in similar tasks.
A door lock switch is a device that produces a contact output when a door is opened or closed.
Widely used contact-type door lock switches are similar in construction to limit switches and microswitches, and are characterized by the fact that they are fixed to the door or doors.
Door lock switches are one of the most widely used devices in industry and household appliances.
Door lock switches are used in the following applications:
The most common application is in refrigerators. Many refrigerators sound a buzzer if the door is kept open for a long period, or turn on internal lighting when the door is opened. In this case, door lock switches are used to detect the opening and closing of the door.
Door lock switches are also used as safety interlock devices in some industries. They are mainly used in large manufacturing equipment and are often installed to prevent personal injury.
Accidents involving large equipment and high-torque power equipment have been occurring more frequently than in the past. To prevent such accidents, we take measures such as covering the entire equipment with a safety fence. Since it is difficult for people to approach the equipment if only covered with a fence, a door is installed, and an interlock is often installed so that the equipment stops when the door is opened.
Door lock switches used for interlocks are sometimes called safety door switches. If the door lock switch alone is judged to be inadequate for interlocking, a door switch with an electromagnetic lock, etc., may be employed.
A door lock switch consists of a contact, a mechanism, and mounting hardware.
The contact is a component that transmits a digital contact signal. Mainly materials such as silver and gold are used. The allowable current value of contacts is generally around several amperes, and they are often incorporated into control circuits.
The mechanical part is a component that detects the opening and closing of doors. Depending on the application, there are contact-type products and non-contact-type products. Contact-type products mainly incorporate microswitches, while non-contact-type products incorporate reed switches.
Mounting hardware is used to attach the product to the door. Products with a structure such as screw fastening are common. Products using one-touch plugs are also available.
Door lock switches come in a variety of types, depending on the application.
Typical types are as follows:
Non-contact door lock switches are door switches with an internal reed switch. It comes with a dedicated actuator and uses a built-in magnet to detect the opening and closing of the door. Since it does not make contact with the door, it is characterized by the fact that it has a few parts that are subject to mechanical wear.
General reed switches can open and close contacts by using a magnet, but for safety applications, the structure requires the use of a dedicated actuator. This is to prevent malfunction of the reed switch.
The contact type is a door lock switch with an internal microswitch. The door closing is detected when the actuator at the tip of the switch contacts the door. Various actuator types are available.
Because they are robust and inexpensive, contact-type door lock switches are used for refrigerator doors and printers. However, there is a risk of malfunction if the internal spring weakens with use over time.
Door lock switches with electromagnetic lock are a door switch that has the function of locking the door with an electromagnetic lock. If a door lock switch is used for safety purposes, a malfunction of the door lock switch may cause personal injury.
By selecting a door lock switch with an electromagnetic lock, it is possible to prevent accidental entry by locking the door. Generally, an interlock is provided so that the equipment will stop if the door is forced to be pried open when locked.
*Including some distributors, etc.
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ifm efector (ifm) is a subsidiary of ifm electronic, founded in Germany in 1969. ifm has developed, manufactured and marketed sensors and controls technology to industries that include assembly and robotics, automotive, material handling, metal forming, mobile equipment, plastics, and food and beverage. Ifm produces sensors, condition monitoring equipment, image processing, safety technology, industrial communication, IO-link, systems for mobile machines, displays, software, connection technology, voltage supplies, as well as other accessories.
Honeywell International Inc. was founded in 1885 and headquartered in Charlotte, North Carolina. Honeywell is a diversified technology and manufacturing company to global customers in many industries such as aerospace, building technologies, performance materials, manufacturing, and safety. Honeywell produces hardware and software solutions for each industry it serves. In building technologies, Honeywell designs access controls, electrical and wiring, fire life safety, and employee training services. In aerospace, Honeywell designs cockpit systems and displays, engines, cabin management and cleaning, and health and usage monitoring.
Essex Electronics, Inc. is an American manufacturer of access control products founded in 1977 and based in Carpinteria, California. The company produces various keyless entry systems, access control readers, and touch as well as no-touch switches. These include keypad/card readers, door access switches, illuminated keypad shrouds, and keyless entry systems for vehicles, homes, or business locations. The company also offers technical support and product customization for its clients in the hospitality, automotive, corporate, and healthcare sectors.
Architectural Control Systems, Inc. is an American electrical door hardware manufacturer and distributor that was established in St. Louis, Missouri in 1981. The company primarily produces electric cylindrical locks, mortise locks, hinges or pivots, and exit devices. It also offers door access controls such as keypads and card readers, as well as magnetic locks and power supplies. The company’s products are used in educational institutions and government offices, as well as in the healthcare, hospitality, and commercial sectors.
DeltrexUSA is a manufacturer and supplier of door access control systems and custom push plate switch controls that was founded in 1969 and is based in Bronx, New York, United States. Electromagnetic locks, electric strikes, exit release controls, call buttons, power supply, are all part of the company's product line. The company sells pioneering, practical, and simple to use items. It is made to accommodate different requirements for convenience, security, and safety in various businesses, including building entrances, communal restrooms, mantraps, and vestibules.
Dorman Products, established in 1918 with headquarters in the USA, is a manufacturer and distributor of automotive aftermarket spare parts. The company's product portfolio includes intake and exhaust manifolds, automotive cooling products, harmonic balancers, fluid lines, fluid reservoirs, connectors, and many more. Dorman Products' products are sold under the Dorman brand and its sub-brands: OE Solutions, Help!, Conduct-Tite, and HD Solutions, through aftermarket retailers, regional and local warehouse distributors, specialty markets, and salvage yards. The company's replacement and upgrade parts are used in the motor vehicle aftermarket industry, serving vehicles that include passenger cars and light-, medium-, and heavy-duty trucks.
Fuji Electric Industry Co., Ltd. is a manufacturer of electrical products such as control switches, connecting devices, pilot lamps and indicators, and electronic devices founded in February 1953, in the town of Nijo, Nakagyo-ku, Kyoto, Japan. In 70 years, the company has three sales offices with Kyoto as its headquarters. Other sales office are in Tokyo and Shiga. It currently has three factory offices located in Shiga, Japan. The company released its first product in 1959-a multi-window indicator. Since 1953, the company released 26 more products. Aside from manufacturing electrical products, the company offers scholarships for students which they started in 1976.
OPTEX CO., LTD., established in 1979 and based in Shiga, Japan, is a manufacturer and supplier of sensors and IoT technologies. The company's product portfolio includes access control systems, environmental sensors, IoT devices, people counting systems, and intruder detection sensors and systems. These systems have applications in various industries, including the security industry, environmental monitoring, parking facilities, water quality monitoring, and others. The company is ISO 9001 Quality Management System (QMS) and ISO 14001 Environmental Management System (EMS) certified.
Omron Corporation, started in 1933 and headquartered in Kyoto, Japan, is a manufacturer of automation components, equipment, and systems, and it developed the first contactless proximity switch in 1960. It has four domains, including industrial automation, electronic components, healthcare, and social systems, and it provides products and services in around 120 countries and regions. Some of its products include microsensing devices, access control systems, industrial robots, surveillance cameras, and blood pressure monitors. In 1971, it developed the first online cash machine, and in 1972, it established Japan’s first welfare factory.
Protec Controls is a distributor of security equipment as well as access control products and components founded in 2004 and based in Pompano Beach, Florida. The company's product inventory includes various security products including intercoms, alarms, access control replacement parts, and motion detectors, as well as related installation accessories. It stocks products from a wide range of brands including HySecurity, Doorking, Carefree Security, and Linear. The company serves clients in the residential, commercial, and industrial sectors, and is certified by the Better Business Bureau (BBB) with an A+ rating.
Ranking as of January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | OPTEX CO., LTD. |
15.3%
|
| 2 | FUJI ELECTRIC INDUSTRY CO., LTD. |
13.9%
|
| 3 | DeltrexUSA |
12.3%
|
| 4 | Essex Electronics, Inc. |
12.3%
|
| 5 | Honeywell International Inc |
10.4%
|
| 6 | Dorman Produts |
9.7%
|
| 7 | ifm efector, inc. |
8.5%
|
| 8 | Omron |
8.2%
|
| 9 | Architectural Control Systems, Inc. |
7.5%
|
| 10 | Protec Controls |
1.0%
|
Derivation Method
The ranking is calculated based on the click share within the door lock switch page as of January 2025. 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
|
6 | 75.0% |
|
Japan
|
2 | 25.0% |
53 products found - Page 1
53 products - Page 1
Shimonishi Giken Co., Ltd.
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■Summary This single MGBS can fully meet the requirements of the international standard ISO14119 for interlock devices and guard lock devices. Inte...
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■Features ・Built-in push switch in conventional catch structure ・Equipped with both an open/close switch and a door lock function ・Small install...
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ifm efector, inc.
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Ideal for applications up to performance level PLD. Hinge (butterfly) type actuator above / below Characteristics of the product ･ Closed circuit...
ifm efector, inc.
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It is an AS-I safety safety switch that is ideal for applications up to the performance level PLD. Characteristics of the product ･ Closed circuit...
