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This section provides an overview for inlets as well as their applications and principles. Also, please take a look at the list of 18 inlet manufacturers and their company rankings. Here are the top-ranked inlet companies as of January, 2025: 1.POTENT WATER CARE PVT. LTD..
Table of Contents
Inlets are connectors used to connect AC power cables to electronic equipment powered by AC power.
They are called because they serve as the AC power inlet for electronic equipment. The advantage of using an inlet is that the AC power cable can be disconnected from the electronic equipment, allowing for AC power cable replacement and improved portability of the electronic equipment.
If inlets are not used, the AC power cable is pulled directly from the electronics. Note that two types of inlet mounting methods exist: screw-fastening and snap-in types.
Inlets are used as connectors for AC power supply cables and are attached to the panel of an electronic device. AC power can be supplied to an electronic device by connecting the inlet plug of the AC power cable to the inlet of the electronic device and the plug of the AC power cable to a power outlet.
Inlets are 2- or 3-terminal female connectors into which male AC power cable inlet plugs are inserted. 2-terminal inlets consist of an N-terminal and an L-terminal, while 3-terminal inlets consist of an N-terminal, an L-terminal, and a ground terminal.
Multifunctional inlets that incorporate fuse holders, switches, and noise suppression filters also exist. The advantages of multifunctional inlets are that they enable the downsizing of electronic equipment, reduction of the number of components, and reduction of assembly man-hours.
However, the cost of multifunctional inlets is higher than that of single-functional inlets.
Inlets with fuse holders are inlets that incorporate holders to which tube fuse-type fuses can be attached. Fuses can be replaced without disassembling the electronic equipment.
Since many components do not have fuses installed and wiring between fuse terminals and power supply terminals, fuse installation and wiring between terminals should be performed when the electronic equipment is assembled.
Inlets with a locking switch. The switch is wired to the terminals of the Inlets, so no work is required during the assembly of the electronic equipment.
The 1-pole switch turns the L terminal and the device ON/OFF, and the N terminal and the device are always connected. 2-pole switches turn both the L terminal and the device ON/OFF and the N terminal and the device ON/OFF. A switch with a lamp is also available, and the ON/OFF of the switch is interlocked with the ON/OFF of the lamp.
Inlets with built-in noise suppression filters for AC power lines are effective in reducing noise entering electronic equipment from AC power lines and reducing noise emitted from equipment to AC power lines.
Inlets with built-in noise suppression filters have a greater depth than single-function inlets, so care must be taken to avoid interference with other components in the electronic equipment.
As with other connectors, select inlets rated for the voltage, current, and temperature environment in which the electronic equipment operates. Selecting inlets with higher ratings than necessary will result in larger inlet sizes and thicker AC power cables to be used.
There are two types of inlets: 2-pole and 3-pole. If the inlets do not require a ground terminal, select 2-pole. Conversely, if the inlets require a ground terminal, select 3-pole.
Inlets are defined by the International Electrotechnical Commission (IEC), and there are a total of 11 types of inlet shapes. The two main types are spectacle-shaped and hexagonal.
Hexagonal inlets have a larger external size but a higher-rated current. Therefore, it is important to select the inlet plug shape of the AC power cable to be used according to the inlet shape.
*Including some distributors, etc.
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International Configurations is an Enfield, Connecticut-based manufacturer of cords and wiring devices established in 1977. The company's product inventory includes power supply cord, detachable cord sets, and power strips, as well as accessories like plugs and adapters with voltage conversion, frequency conversion, and grounding features. These are made in compliance with RoHS, REACH, and CE standards. International Configurations can also design and manufacture cord sets and components for clients in the commercial, medical, and industrial sectors with specific requirements.
Adam Tech USA is an American manufacturer of electronic interconnects, cable assemblies, and custom components established in 1987 and headquartered in Union, New Jersey. The company produces electromechanical components including various switches, and custom components such as magnetic pogo pin cable assemblies and fiber optic adapters. It also offers standard as well as custom cable assemblies for unique client projects. The company operates internationally, with subsidiaries and branch offices in Germany, Taiwan, and Brazil.
Jensen Precast was established in 1968 and is based in Sparks, Nevada as a manufacturer and supplier of precast concrete products. The product’s product portfolio includes utility vaults, stormwater management systems, retaining walls, septic tanks, and more. The precast concrete products offered by the company are crucial components in civil engineering and construction projects, enabling durable and sustainable structures. The products are used in various sectors such as transportation, energy, water, and telecommunications. It is suitable for multiple purposes, from underground installation to above-ground application.
J&D Manufacturing, established in 1981 in Eau Claire, WI, is a manufacturer and international distributor of ventilation and equipment products for agriculture, horticulture, industrial and commercial applications. The company’s product line includes curtain systems, controls, exhaust fans, freestalls, and inlets. It also provides calf solutions, tube ventilation systems, manure handling equipment, headlocks, and feed panels. In 2015, it became the first to have an accredited AMCA air test chamber added to its facility specifically for testing agricultural fans.
PARKUSA, established in 1984, is a company headquartered in Houston, Texas, that is a supplier of advanced water, wastewater, and stormwater equipment and technology for infrastructure and built environments. The company has expanded its skills in response to the evolving demand and regulatory requirements about water, stormwater, and wastewater infrastructure to cater to its clients' demands effectively. The company's design and manufacturing capabilities offer solutions tailored to satisfy the water business's specific needs and regulatory standards, which are experiencing increasing pressures.
Rich Bay, a company founded in 1986 and based in Taiwan, is a manufacturer of power connectors, sockets, and plugs. The company’s product portfolio includes Nema sockets, British outlets, adopters, and power filters. These products cater to diverse industries, including electronics, telecommunications, and industrial applications. Their product range ensures power connectivity, vital in powering various devices and systems. The company also offers customer services such as technical support and customized solutions to meet customers’ needs.
Schaffner, founded in Luterbach, SO, in 1962 is a manufacturer of electromagnetic solutions that ensure the efficient operation of electronic systems. The company's product portfolio includes Active Harmonic Filters and Passive Harmonic Filters. Output Filters, Reactors and LCL Filters. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. The company provides services such as Product Selection Guidance, Engineering Support, New Product Design and Development and Custom Manufacturing.
The SCHURTER Company was founded in 1933 and operates out of Lucerne, Switzerland. SCHURTER is an innovator and producer of electronic components for many markets including industrial equipment, medical equipment, automotive, avionics and space, data and communication, and energy. SCHURTER products and solutions include: circuit protection, connectors, switches, EMC, custom components, HMI solutions, PCAP touchscreens, resistive touchscreens, capacitive switches, membrane switches, and a series of smart products including Smart Connector DS11 PEM, Smart Connector DT31 external, and Smart Ecosystem.
Interpower Corporation established in 1975, and has headquarters located in the USA, and the UK, is a manufacturer of international power cords and related products to customers worldwide. The company’s North American stock of products centralized in Iowa include international power cords and cord sets, plugs and sockets, hospital-grade products, and IEC 60320 accessory power distribution units. The UK division of the company serves mainly the European market. Interpower Corporation is also ISO 9001:2015 certified.
Bulgin serves the industrial, maritime, energy, automotive, agricultural, telecommunications as well as consumer electronics industries. Bulgin is a global leader in sealed connectors and components as well as electromechanical switches. Bulgin offers customized cable designs for customers needing specific designs to protect cable integrity or safety.
Turner Company, founded in 1980 by Brian and Michelle Turney, is a family-owned manufacturer and supplier of precast concrete products from its facilities in Lockhart and Rhome, Texas. The company has grown rapidly from its beginnings as a wetcast manufacturer and installer to a major supplier of drycast and westcast concrete products in the Texas Triangle and beyond. Over the years, the company has also added precast business to its original offering, supplying septic tanks, storm cellars, grease traps, and more.
High & Low Corporation was established in Taipei, Taiwan in 1994. H&L products are widely used including in the medical, automotive, home appliance, and video arcade industries. H&L specializes in EMI/RFI filter solutions including power entry modules, single phase filters, home appliance filters, PPCB filters, 3 phase filters, and medical filters.
Canal Components Inc. is headquartered in New Taipei City, Taiwan. The company is a distributor of quality electrical and mechanical components to customers worldwide. The company sources from suppliers in China and Taiwan as well as perform in-house production in its ISO 9001-certified factories providing product testing. The company’s product categories include switches, sockets, fuses, and other component parts. The company also has a line of waterproof and washable electronic parts. The company bridges communication between suppliers and customers and encourages inquiries from customers about products.
Ranking as of January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | POTENT WATER CARE PVT. LTD. |
100.0%
|
Derivation Method
The ranking is calculated based on the click share within the inlet 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
|
8 | 53.3% |
|
Taiwan
|
3 | 20.0% |
|
Switzerland
|
2 | 13.3% |
Japan
|
1 | 6.7% |
India
|
1 | 6.7% |
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