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This section provides an overview for load device as well as their applications and principles. Also, please take a look at the list of 17 load device manufacturers and their company rankings. Here are the top-ranked load device companies as of April, 2026: 1.Magna-Power Electronics, 2.AMETEK Programmable Power, 3.Keysight Technologies.
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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 load device is a device used to test the performance and operation of an electrical circuit or system.
It applies an electrical load to evaluate the response and stability of a system or device. It is a useful tool for evaluating the performance of electrical circuits and systems.
It can test operation under a variety of conditions, including current and voltage variations and response times. This allows us to check the quality and reliability of products and identify areas for improvement.
It is also used for standardized test methods, such as statutory testing. When specific power requirements or signal conditions must be met, load devices can be used to replicate these conditions.
Load devices are primarily used for electrical equipment. The following are examples of load device applications:
Used to evaluate battery life and charge efficiency of mobile devices. load devices are often used to reproduce the conditions of current rating and charging time.
Also used to evaluate the performance of solar panels and inverters. load devices are used to reproduce solar power and evaluate power output and stability.
Emergency generators are critical devices used to provide power in the event of a power outage or emergency. In the Rated Load Test, a load electronic load device is connected to supply rated power to the generator. This confirms the capacity and stability of the generator and evaluates its operation under the rated load.
In many cases, it also tests how quickly the generator responds to sudden load changes. We control the load device to rapidly change the load and evaluate the response time and stability of the generator.
Also used to test heat sinks. A load is applied to a computer's CPU by the load device and heat is generated. This allows evaluation of the cooling capacity of the heat sink and CPU temperature.
Load devices provide a load by consuming electrical energy. Electrical energy is converted by the elements and components within the load device and converted into thermal or optical energy. Consumption of electrical power is the basic principle by which load devices provide a given load.
Inside the load device, current and voltage fluctuations must be controlled. Resistive and inductance elements and switching devices are used as control means. This provides specific load conditions by regulating current and voltage in response to external signals or controls. A load device is an instrument designed to reproduce specific load conditions.
There are different load conditions for different purposes, such as rated conditions and load variations. Load devices can control these conditions and evaluate how an electrical circuit or system will perform under real application conditions.
There are many different types of load devices. The following are typical types of load devices:
Load devices use resistive elements to consume power. It is used to provide the rated current to an electrical circuit or system. A voltage drop is produced according to the resistance value to control and stabilize the current.
Electronic load is a load device that converts electrical energy into thermal energy through an internal electronic device. Common methods use resistive or switching devices. These devices consume power and are responsible for converting electrical energy into thermal energy.
They are used in high-power applications and are suitable for evaluating and testing power supply systems. They are used to evaluate power supply stability and response time.
Since load devices consume high power, heat generation is a problem. Therefore, an effective cooling system is required. Generally, a combination of cooling devices such as cooling fans and heat sinks is designed to dissipate heat efficiently.
This is a device that uses water to reproduce a power electronic load. Water is circulated by a motor to generate resistance as a load. A water pump driven by a motor circulates the water and applies an electrical load to a generator or power equipment connected to the electronic load.
By simulating the load conditions during actual operation, it is possible to evaluate the performance and reliability of the equipment.
*Including some distributors, etc.
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Magna-Power Electronics, established in 1981 and headquartered in Flemington, New Jersey, USA, is a manufacturer of programmable DC power supplies, DC electronic loads, and custom power solutions. The company's product varieties offer robust precision, stability, and adaptability, providing benefits such as precise power control, energy efficiency, and the ability to simulate real-world operating conditions. It serves a wide range of industries, including aerospace, automotive, renewable energy, research, and industrial manufacturing. The solutions are vital in applications such as testing, development, and validation of electronics, electric vehicles, and alternative energy systems.
AMETEK Programmable Power, located in San Diego, California, is a manufacturer of precision power solutions founded in 1982. The company offers precision power supplies, electronic loads, power subsystems, compliance test solutions, and precision modular instrumentation for applications requiring precise power control, testing, and electronic signal monitoring. These products are used in various industries such as research and development, aerospace, defense, telecommunications, and automotive. The company holds and maintains ISO 9001:2015 certification, adhering to industry standards for its quality management system.
Keysight Technologies, Inc. was founded in 1939 and headquartered in Santa Rosa, California. Keysight is a global developer and manufacturer of electronic design and test solutions to communications, networking, aerospace, defense, and government, automotive, energy, semiconductor, electronic, and education industries. Keysight’s communications solutions group solutions include electronic design automation software; radio frequency and microwave test solutions, hardware and virtual network test platforms and software applications, as well as optical laser source solutions. Keysight’s electronic industrial solutions group offers various design tools and verification tools. Keysight offers product support, technical support, and training and consulting services. It sells its products through direct sales force, distributors, resellers, and manufacturer's representatives.
APM Technologies Ltd., founded in 2012 and based in Dongguan, Guangdong, China, is a manufacturer of power distribution equipment. The company offers PV solar inverters, three-phase AC source systems, lab power supplies, and DC electronic equipment. The company's products, certified by ISO-9001, CE, and CSA, cater to a range of industries, including energy and utilities, manufacturing, commercial and residential. It also offers services such as the integration of power distribution equipment into existing systems and customized solutions to meet specific project requirements.
TDK-Lambda serves the communications, medical, factory automation, semiconductor, transportation, LED display, and energy industries with a variety of power-related products. Among these products are onboard power supplies, PC board power supplies, noise filters, linear power supplies, unit and configurable power supplies, programmables power supplies, power modules, and bidirectional DC-DC converters.
MICRO TEKNIK, founded in 1967 with headquarters in India, is a certified manufacturer and supplier of scientific testing and analytical instruments and equipment. The company's broad product range includes refrigeration and air conditioning laboratory equipment, automatic razor sharpeners, blood banking instruments, chemical engineering laboratory equipment, and petroleum testing instruments. The company's products are used by a range of industries, including chemical processing, process manufacturing, road works, building construction, and educational markets.
Chroma ATE Inc., established in 1984, is an instrument manufacturer and supplier based in Taoyuan City, Taiwan. Operating under the Chroma brand, the company provides electronic test and measurement equipment for automated optical inspection, flat panel display validation, electric vehicle component testing, and electrical safety device assessment. This equipment is also utilized for energy storage systems (ESSs) and power conversion systems (PCSs) verification, light-emitting diode (LED) and driver analysis, passive component testing, and photovoltaic inverter validation. The company also provides intelligent manufacturing execution systems (MESs). Furthermore, the company operates a laboratory, certified to perform alternating current (AC)/direct current (DC) and resistance calibration.
EA Elektro-Automatik GMBH & Co, KG, established in 1974 and headquartered in North Rhine Westphalia, Germany, is a manufacturer of power electronics. The company offers a wide range of products, including conventional, bidirectional, and regenerative DC supplies and loads. It also offers auto-ranging power supplies, high-power mains adapters, and cabinet rack power systems. Its true autoranging allows the use of a single source to test a wide range of electronic devices and systems, maximizing flexibility. It has achieved ISO 9001:2015 and ISO 14001:2015 certification. It serves industries such as e-mobility, renewable energy, and manufacturing.
TDK Corporation, established in 1935, is a manufacturer of electronic solutions for the smart society based in Tokyo, Japan. The company is a part of the TDK Group, which has over 250 locations in more than 30 countries worldwide and employs over 103,000 people. They offer a wide range of products, including sensors, power supplies, and magnetic application products. The robotics industry is evolving at a rapid pace, and they are now offering , a robot development platform equipped with a variety of sensors essential to the accurate operation of robots, enabling more efficiency across a wide range of robot development.
Höcherl & Hackl GmbH, established in 1986 and headquartered in Bavaria, Germany, is a manufacturerand developer of electronic loads and testing devices. The company specializes in 4-quadrant power supplies, electronic loads, and testing for power supplies, energy storage units, and fuel cells. Its electronic loads spanning from DC to AC are equipped with MPP-tracking and internal resistance measurement, enhancing automation and versatility for testing batteries, solar cells, and control units. The company's SCL series, designed for DUTs to deliver high currents down to near 0 V or into short circuits, is suitable for fuel cell testing.
GW Instek or Good Will Instruments is a Taiwanese instrument maker founded in 1975. GW Instek has over 300 product lines, which include Oscilloscopes, Spectrum Analyzers, Signal Sources, Basic Tests and Measurement Instruments, Safety Monitoring Systems, and more. Leading manufacturers choose them as their test and measurement provider. GW Instek has become the leading brand in the electronic test and measurement industry. They help electronic industries reduce testing costs and increase competitiveness. GW Instek has subsidiaries in five countries and is sold to more than 80. Their mission is to reduce total costs and create customers value from cost savings.
TEKTRONIX, INC., founded in 1946, is a manufacturer of measurement solutions used in 3D sensing, EMI/ EMC testing, high-speed serial communication, material science engineering, and Wireless & RF testing. The products include oscilloscopes & probes, signal generators, margin testers, multimeters, and analyzers. The company's products are used in advanced research, aerospace & defense, automotive, power semiconductor, and medical industries. The Bracknell Berkshire company offers calibration, repair, asset management, package assembling, and testing services following NEMA, HAlT & HASS, environmental, and shock-vibration testing.
Shenzhen Kawaxin Electronics Co. Ltd., established in 2001 and headquartered in Meizhou City. Guangdong, China, is an electronic component designer, manufacturer, and B2B supplier. The company's primary products include ceramic composition resistors, noise suppressor resistors, and damping resistors. It also produces SMD components, resistive load banks, and a range of electrical shunts. These components are used in numerous electronic and electric devices, including mobile phone chargers, microwaves, and street lighting. The company's services include the supply of sample products and custom component production.
TEXIO TECHNOLOGY CORPORATION has been in operation in Japan for over 60 years. TEXIO specializes in custom orders of a variety of different products including power supplies. TEXIO also specializes in DC power supplies, oscilloscopes, multimeters, function generators, and safety testers.
Ranking as of April 2026
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Magna-Power Electronics |
14.9%
|
| 2 | AMETEK Programmable Power |
11.9%
|
| 3 | Keysight Technologies |
10.4%
|
| 4 | MICRO TEKNIK |
7.5%
|
| 5 | shenzhen kawaxin electronics co.,ltd |
6.0%
|
| 6 | Zeal Manufacturing & Calibration Services Pvt. Ltd. |
6.0%
|
| 7 | TEKTRONIX, INC. |
6.0%
|
| 8 | TDK-Lambda Corporation |
6.0%
|
| 9 | SKY TECH & INSTRUMENTS |
4.5%
|
| 10 | EA ELEKTRO-AUTOMATIK GMBH & CO. KG |
4.5%
|
Derivation Method
The ranking is calculated based on the click share within the load device page as of April 2026. 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 (%) |
|---|---|---|
|
Japan
|
4 | 28.6% |
|
United States of America
|
3 | 21.4% |
|
China
|
2 | 14.3% |
|
Taiwan
|
2 | 14.3% |
|
Germany
|
2 | 14.3% |
|
India
|
1 | 7.1% |
116 products found - Page 2
116 products - Page 2
TEXIO TECHNOLOGY CORPORATION
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■Realizes earth-friendly power regeneration The LRW series regenerates input DC power into commercial power (on-premises) with high efficiency of u...
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■Lightweight and compact high-capacity electronic load device The LSC series is a DC electronic load device with 150V/600V/1,200V models in three p...
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Tamaohm Co., Ltd.
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■Features ・A maximum of 1,500W can be applied. ・Current can be varied in 5A increments up to a maximum of 30A. ・You can finely adjust the curren...
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Touch panel control - resistive load device
Tamaohm Co., Ltd.
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■What is a standard load unit/switchable standard load unit? Tower unit type load resistors with 1 to 4 stages, combining several to dozens of resi...
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Comprehensive load device
Tamaohm Co., Ltd.
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■What is a standard load unit/switchable standard load unit? Tower unit type load resistors with 1 to 4 stages, combining several to dozens of resi...
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DC simulated resistance load device DC resistance load device (high voltage type)
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DC simulated resistance load device DC load device (low voltage type)
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AC simulated inductive load device High frequency load device 400Hz
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AC simulated inductive load device LR load device
Keisoku Giken Power Electronics
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Rated voltage 1,500V. Ultra-high voltage/large capacity This is a DC electronic load that can handle ultra-high voltages up to 1,500V. No need to ...
Shoei Electronics Industry Co., Ltd.
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AC simulated resistance load device Simple load resistor
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DC-only general-purpose regenerative electronic load This is a general-purpose regenerative load that removes the AC load function and specializes...
Shoei Electronics Industry Co., Ltd.
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AC simulated resistance load device Outdoor load device
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AC simulated resistive load device 3-phase resistorless device
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AC simulated resistance load device Single-phase load resistor
Keisoku Giken Power Electronics
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Master-slave compatible. Single-phase/3-phase AC electronic load Capacity ranges from single-phase 1.875kW to single-phase 30kW and three-phase 11...
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Shoei Electronics Industry Co., Ltd.
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Non-inductive load resistor
