Best Current Switches of 2026

Harvey Wall Avatar
Harvey Wall
Last Updated: 2 Feb 2026

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Current switches are electronic devices that are used to detect and monitor electrical current flowing through a circuit. They are commonly used in industrial and commercial applications to ensure proper functioning of equipment and to prevent damage due to overloading or short-circuiting. Current switches come in various types and configurations, including solid-core, split-core, and adjustable models. They are essential for maintaining the safety and efficiency of electrical systems and can provide valuable information for troubleshooting and maintenance. Overall, current switches are a reliable and cost-effective solution for monitoring electrical current in a wide range of applications.

At a Glance: Our Top Picks

DEWIN Adjustable AC Current Sensing Switch Cover #TOP 1
DEWIN Adjustable AC Current Sensing Switch
ftb score rating icon 9.8
Uadme Flameproof Adjustable AC Current Switch Cover #TOP 2
Uadme Flameproof Adjustable AC Current Switch
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Tyenaza Adjustable AC Current Sensing Switch Cover #TOP 3
Tyenaza Adjustable AC Current Sensing Switch
ftb score rating icon 9.5

Top 7 Current Switches

#TOP 1

DEWIN Adjustable AC Current Sensing Switch

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DEWIN Adjustable AC Current Sensing Switch Cover
DEWIN Current Sensing Switch, Normally Open Current Sensing Switch Adjustable AC 0.2-30A SZC23-NO-AL-CH for Substation Frequency Conversion Speed Control Devices and Other Automation Industries

The DEWIN Current Switch offers a robust solution for AC current measurement and monitoring. Its high-quality ABS shell ensures durability while simplifying design and reducing costs compared to traditional devices. The self-powered design eliminates the need for an external power supply, allowing for accurate and timely control of automated equipment. With a straight-through structure and an isolation voltage of up to 2000V, it provides reliable performance in various industrial applications, enhancing safety and efficiency.

What We Like
High-quality self-extinguishing material
Self-powered, no external supply needed
Fast response speed
High isolation voltage
Cost-effective design
#TOP 2

Uadme Flameproof Adjustable AC Current Switch

Current detection switch
Normally Open
Uadme Flameproof Adjustable AC Current Switch Cover
Sensing Switch, Flameproof Adjustable AC Current Sensing Switch 0.2~30A Self-Powered Sensing Switch(Normally Open)

The Uadme AC Current Switch is designed for controlling various automation equipment, making it an essential tool for your electrical needs. With its high accuracy, you can rely on it for precise current monitoring, ensuring safety in your operations. Its stable performance means less downtime, providing peace of mind for users. Additionally, this self-powered switch simplifies monitoring or detecting current, offering you convenience and ease of use in managing your electrical devices.

What We Like
High accuracy and stability
Self-powered for convenience
Suitable for various applications
Enhances safety in operations
#TOP 3

Tyenaza Adjustable AC Current Sensing Switch

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Tyenaza Adjustable AC Current Sensing Switch Cover
Tyenaza Current Sensing Switch, 0.2~30A Self-Powered Flameproof Adjustable AC Current Sensing Switch Sensing Relay(Normally Open)

The Tyenaza Current Sensing Switch offers an effective solution for monitoring electrical current safely and conveniently. With a current range of 0.2 to 30A and a frequency of 40-400Hz, you can easily track the performance of your equipment. This device provides high accuracy and stable operation, making it a reliable choice for automated industrial applications. Its advanced technology uses electromagnetic mutual inductance, ensuring effective output detection and protection. You can trust this switch for its long service life and efficient monitoring capabilities.

What We Like
High accuracy and stable performance
Self-powered for convenience
Wide application in various industries
Simple monitoring of electrical current
#TOP 4

Hyuduo Adjustable Current Sensing Switch 0.2-30A

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Hyuduo Adjustable Current Sensing Switch 0.2-30A Cover
Hyuduo Adjustable Current Sensing Switch, Current Sensing Switch Normally Open Current Sensing Switch Adjustable AC 0.2 30A, Current Monitoring Relays

The Hyuduo Current Sensing Switch is a user-friendly device that operates between 0.2 to 30A AC, making it easy for you to adjust the current with a simple potentiometer. The LED indicator helps you monitor the switch's working status at a glance, ensuring you are always informed. This switch is self-powered, eliminating the need for an external power supply, which adds to its convenience. With its versatility, it is perfect for applications such as AC current measurement and motor overload protection.

What We Like
Self-powered, no external supply
Adjustable current range
LED indicator for status
Versatile application
Contactless electronic switch
#TOP 5

Yanmis AC Current Sensing Switch 0.5-50A

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#767
Yanmis AC Current Sensing Switch 0.5-50A Cover
Current Sensing Switch, 0.5-50A AC Adjustable Normally Open AC Current Sensing Switch for Automated Industrial Equipment and Store Monitoring

The Yanmis Current Sensing Switch is an essential tool for monitoring AC current in various settings, particularly in automated industrial equipment and store monitoring. It features adjustable thresholds from 0.5 to 50A, allowing you to tailor the device to your specific needs. The switch operates on the principle of mutual inductance, ensuring high precision and stable performance. Its robust ABS self-extinguishing housing guarantees a long service life, making it a reliable choice for industries that demand efficiency and safety.

What We Like
Adjustable threshold settings
High precision monitoring
Durable self-extinguishing material
Wide application range
#TOP 6

Jectse SZC25-NO-AL-CH Adjustable Current Relay

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Jectse SZC25-NO-AL-CH Adjustable Current Relay Cover
Normally Open AC Current Switch,AC0.5-50A Adjustable Isolation Current Relay Monitoring,Current Sensing Switch for Current Detection AC

The Jectse Current Switch is a reliable device for AC current monitoring, operating within a range of 0.5-50A. Its adjustable threshold point allows you to precisely set the current level you wish to monitor, enhancing control over your automated systems. With a quick response time, it ensures immediate detection and reaction to current changes, providing peace of mind. The self-inductive power supply feature means you won't need an external power source, simplifying installation and use for your current detection needs.

What We Like
High precision monitoring
Easy installation
Adjustable current threshold
Self-inductive power supply
Wide application range
#TOP 7

Candeon Adjustable Flameproof AC Current Sensing Switch

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Onecolor
Candeon Adjustable Flameproof AC Current Sensing Switch Cover
Candeon Current Sensing Switch-Flameproof Adjustable AC Current Sensing Switch 0.2~30A Self-Powered Sensing Switch(Normally Open)

The Candeon Current Sensing Switch offers simple and convenient current detection, making it easier for you to monitor electrical equipment safely. Its high precision ensures you get accurate readings, which is useful for maintaining reliable performance. The switch is known for stable operation, so you can trust it to work consistently over time. Additionally, its long service life means less frequent replacements, providing you with a durable and cost-effective solution for industrial automation and power monitoring needs.

What We Like
High precision detection
Stable and reliable performance
Long service life
Simple and convenient to use
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is a digital current switch?

Product Description. The Current Switch Device (CSD) Series of digital output current switches are non-intrusive devices designed to detect current flowing through a cable or wire. ... Completely self-powered, these units draw their power from current induced from the cable or line being monitored.

2. How does a current sensing relay work?

The current-sensing relay in this water pump electrical circuit prevents the pump from running when the water level is too low. When a pump is operated with a flooded suction and liquid completely covers its inlet, the pump's motor will draw normal operating current.

3. How do we sense current?

The most common way to measure current is to sense the voltage drop across a shunt or current-sense resistor. To achieve a highly accurate measurement of the current, you'll need to examine the parametric values of both the resistor and current-sense amplifier.

Editor's Notes

During our current switch research, we found 62 current switch products and shortlisted 7 quality products. We collected and analyzed 3,855 customer reviews through our big data system to write the current switches list. We found that most customers choose current switches with an average price of £15.53.

The current switches are available for purchase. We have researched hundreds of brands and picked the top brands of current switches, including DEWIN, Uadme, Tyenaza, Hyuduo, Yanmis.

Written by
Harvey Wall Avatar

Harvey Wall was born and raised in Norwich. He mastered the art of tool production and finished at the prestigious Norwich University. His area of interest include cutting tools, abrasive finishing and power tools. Harvey is always looking for ways to improve the finesse of industrial tools via his myriads of researches. He also shares some of his experiences on many platforms while writing on tool products.