The 10 Best Current Monitoring Relays to Buy – October 2022 Review

Looking for the best Current Monitoring Relays?

We did 16 hours of research and testing 15 products to create this review. We believe the best Current Monitoring Relays doesn’t have to be the most sophisticated to be exceptional. Our product selection lives up to its promise. Many different criteria were used for this comparison to be more relevant and more precise. Now discover our comparison !

TOP 10

No. 1
CrocSee Miniature Current Switch, CS-TS0, Normally Open Amp Sensor Monitoring Relay, AC 1-50A Detectable
  • N.O. Universal Outputs: 2.5A @ 120 VAC/240VAC; In 240V circuit, only one 120V hot line is connected.
  • Self-powered, no external power supply required
  • Accurate & Dependable: Offers a sensing range of 1 to 50 amps and universal, solid-state outputs; Accuracy: 1%
  • Faster Response Time: Once current flow is detected, it closes a set of contacts immidiately; Response Time: ≤200ms
  • NOTE: If you want to test the operation of the sensor switch, a load must be applied across the NO contacts; otherwise, it will not work.
SaleNo. 2
Current Sensing Relay AC Current Sensing Switch 0-30A Normally Closed Amp Sensor Monitoring Relay (M3056)
  • Normally closed current sensing switch: when the perforation line current exceeds the set value, the green light is on and the output signal is open. The AC and DC load indirectly, when the current is less than the set value, the red light is off and the switch is off is closed
  • Mutual inductive current monitoring, safety isolation of input and output, self-current monitoring
  • The range of the monitored current is up to 30 A, the monitoring threshold is adjustable
  • Hysteresis is less than 1%. It can be used in devices to monitor strong magnetic environment.
  • Non-contact electronic switch with fast response and unlimited number of on and off operations
No. 3
Current Sensing Relay AC Current Sensing Switch 0-30A Normally Open Current Sensor Monitoring Relay (M3050)
  • Multi-Purpose: M-3050 AC current sensing switch is specially designed and manufactured to solve AC current monitoring. It uses the principle of mutual inductance to sense AC direct current, isolate the AC current, output normally open or normally closed switch signals, and directly control various automated industrial equipment, such as flash lamps, buzzers, relays, microcontrollers or other power load equipment.
  • Upgrade: Compared with traditional transformers, thermal protectors and other devices, using this device can not only get more accurate and timely control, but also greatly simplify the design and reduce costs. Self-powered, no external power supply required. Input through current: 0-30A AC Rated load: 0.3A@240V AC/DC.
  • High Performance: The switch has no limit on the number of times of opening and closing, and the response speed reaches the millisecond level. The hysteresis is less than 1% and can be used under strong magnetic conditions. Through structure design, isolation withstand voltage up to 2000V.
  • LED Indication: The action current is 0-30A AC, which can be adjusted by the potentiometer. The LED indicator light can easily and intuitively indicate the working status of the switch.
  • ABS material: High-power MOS tube non-contact electronic switch is used, and the shell is made of self-extinguishing material ABS, which is heat-resistant, acid-alkali-resistant, high impact strength and stable in performance.
No. 4
Current Sensing Relay AC Current Sensing Switch 0-200A Normally Closed Current Sensor Monitoring Relay (N200)
  • Universal Outputs: Input through current: 0.5-200A AC Rated load: 0.3A@240V AC/DC.
  • Accurate & Dependable: Offers a sensing range of 0.5 to 200 amps and universal, solid-state outputs; Accuracy: 1%
  • Faster Response Time: Once current flow is detected, it closes a set of contacts immidiately; Response Time: ≤200ms
  • Self-powered, no external power supply required,adjustable with a potentiometer.LED indicator can conveniently and intuitively indicate the working status of the switch.
  • Normally open current sensor:Suitable for AC current measurement and monitoring, AC motor overload protection, electronic switch of automatic control system and so on.
No. 5
AC 0.5-50A Current Sensing Switch,SZC25-NC-AL-CH Current Relay Monitoring,Adjustable Normally Close Current Switch,
  • 100% brand new and high quality.
  • High precision, more stable and long service life
  • It is an ideal choice for automated industrial equipment and store monitoring.
  • This AC current sensing switch is designed and manufactured to solve the AC current monitoring. It uses the principle of mutual inductance to sense the AC current through the AC, isolate the AC current, and output a normally closed switching signal to di
  • Widely used in substation, frequency conversion speed control device, inverter device, electrolytic plating, electric locomotive, street lamp monitoring, coal mine and other automation industries requiring current monitoring
No. 6
Current Sensor Monitoring Relay, Adjustable Current Sensing Relay 0.2~30A Self-Powered Miniature Current Switch Flameproof AC Switch(Normally Closed)
  • 【Universal Outputs】Starting Current / Frequency Range: 0.2-30A, 40-400Hz, Switch Contact Capacity: Maximum: 0.5A@12-240VAC/DC.
  • 【Principle】Current sensor monitoring relay use the electromagnetic mutual inductance principle of current, the advanced switch output detection, monitoring and protection alarm type products without power supply technology are adopted.
  • 【Function】The current-sensing switch is for safe, convenient monitoring or detecting the current of electric equipment.control various automation industrial equipment, flashlights, buzzers, relays, microcontrollers, or other electrical load devices.
  • 【Two Optional Modes】Normally open/normally closed, two modes can be selected.
  • 【Widely Use】The miniature current switch is widely used in substation, frequency conversion speed control device, inverter device, electrolytic plating, electric locomotive, street lamp monitoring, coal mine and other automation industries that need current monitoring.
No. 7
Siemens 3UG4622-1AW30 Monitoring Relay, Single Phase Current Monitoring, 22.5mm Width, Screw Terminal, 1 CO Contacts, 0.05A AC/DC Measuring Range, 0.01A-5A Hysteresis, 0-20 s Starting Bypass Time, 0-20 s Off Delay, 24-240VAC/DC Auxiliary Voltage
  • 22.5 mm wide
  • Can be digitally set and with LCD display
  • Fault memory that can be switched-in
  • Simultaneous monitoring for current over range/under range over the complete measuring range
  • Wide-voltage versions reduce stock inventory costs
No. 8
EVTSCAN Latest DPA51CM44 3-Phase Monitoring Relay, Current/Voltage Monitoring Relay Phase Sequence Protector for Three-Phase System, Without Neutral, Phase Loss, 208-480VAC
  • Small Size: 2021 Improved Version, This 3-Phase Monitoring Relay has a smaller compact size for easier and convenient use and install, and the size of the Monitoring Relay is 8.1 x 6.7 x 1.75 cm/3.1 x 2.6 x 0.6 inch, you can install it on any places around the room, saving a lot of place
  • Multi-functioanl: This DPA51CM44 3-Phase Monitoring Relay has a widely use on the electric filed, and it can be applied to motor protection, elevator, air conditioning system, power system and other industries, very helpful tool during daily life
  • Work Well: DPA51CM44 3-Phase Monitoring Relay features with strong anti-interference performance, so it helps maintain a constant and efficient work of the motor, it will provide an excellent performance during the working process
  • 3-Phase Design: This Current Monitoring Relay is designed with 3-Phase Monitoring Relay to provide a correct phase sequence, without neutral, phase Loss and Incorrect phase sequence, so it can detect when all phases are present and have the correct sequence
  • LED Indication: This DPA51CM44 Monitoring Relay features an LED indication for easier installation and trouble shooting, which permits a maximum degree of protection to be achieved for machines, plants and systems, and avoid far more significant subsequent damage, very convenient and useful
No. 9
Current Sensing Switch, Normally Open Current Sensing Relay Adjustable AC 0.2A -30A (SZC23 No AL-CH Model)
109 Reviews
Current Sensing Switch, Normally Open Current Sensing Relay Adjustable AC 0.2A -30A (SZC23 No AL-CH Model)
  • Self-powered, no external power supply required.
  • Action current 0.2-30A AC, adjustable with a potentiometer.
  • LED indicator can conveniently and intuitively indicate the working status of the switch.
  • High-power MOS tube contactless electronic switch.
  • The switch has no limit on the number of opening and closing, and the reaction speed reaches the ms level.
No. 10
CR Magnetics CR4395-EH-120-110-X-CD-ELR-I Current Sensing Relay with Internal Transformer, 120 VAC, Energized on High Trip, 1 - 10 AAC Trip Range
  • Current sensing relay for monitoring electrical current
  • Current carrying wire is routed through an aperture
  • Electrical isolation between circuits (SPDT)
  • Variable trip point range with adjustable timer for stability
  • UL recognized for safety and RoHS compliant for hazardous substances

Intro

Find out where you can get the best Current Monitoring Relays! Making your choice among different Current Monitoring Relays on the market is not always easy. It can also turn into a daunting task because of the many websites offering the same type of product. On this page, we will give you a comparison to get the best value for your money. This complete ranking provides you with a comprehensive view and allows you to pick the best Current Monitoring Relays. You will find a broad selection of models, brands, and prices. Whether you want to save money or find out what is the best Current Monitoring Relays for you, our comparison will help you make the right choice. To keep things practical and easy to understand, we created a Top 10 of the best Current Monitoring Relays. You won’t have to choose your products at random anymore.. On your marks! Compare! Pick your Current Monitoring Relays!

Our Picks

No. 1
CrocSee Miniature Current Switch, CS-TS0, Normally Open Amp Sensor Monitoring Relay, AC 1-50A Detectable
  • N.O. Universal Outputs: 2.5A @ 120 VAC/240VAC; In 240V circuit, only one 120V hot line is connected.
  • Self-powered, no external power supply required
  • Accurate & Dependable: Offers a sensing range of 1 to 50 amps and universal, solid-state outputs; Accuracy: 1%
  • Faster Response Time: Once current flow is detected, it closes a set of contacts immidiately; Response Time: ≤200ms
  • NOTE: If you want to test the operation of the sensor switch, a load must be applied across the NO contacts; otherwise, it will not work.
SaleNo. 2
Current Sensing Relay AC Current Sensing Switch 0-30A Normally Closed Amp Sensor Monitoring Relay (M3056)
  • Normally closed current sensing switch: when the perforation line current exceeds the set value, the green light is on and the output signal is open. The AC and DC load indirectly, when the current is less than the set value, the red light is off and the switch is off is closed
  • Mutual inductive current monitoring, safety isolation of input and output, self-current monitoring
  • The range of the monitored current is up to 30 A, the monitoring threshold is adjustable
  • Hysteresis is less than 1%. It can be used in devices to monitor strong magnetic environment.
  • Non-contact electronic switch with fast response and unlimited number of on and off operations
No. 3
Current Sensing Relay AC Current Sensing Switch 0-30A Normally Open Current Sensor Monitoring Relay (M3050)
  • Multi-Purpose: M-3050 AC current sensing switch is specially designed and manufactured to solve AC current monitoring. It uses the principle of mutual inductance to sense AC direct current, isolate the AC current, output normally open or normally closed switch signals, and directly control various automated industrial equipment, such as flash lamps, buzzers, relays, microcontrollers or other power load equipment.
  • Upgrade: Compared with traditional transformers, thermal protectors and other devices, using this device can not only get more accurate and timely control, but also greatly simplify the design and reduce costs. Self-powered, no external power supply required. Input through current: 0-30A AC Rated load: 0.3A@240V AC/DC.
  • High Performance: The switch has no limit on the number of times of opening and closing, and the response speed reaches the millisecond level. The hysteresis is less than 1% and can be used under strong magnetic conditions. Through structure design, isolation withstand voltage up to 2000V.
  • LED Indication: The action current is 0-30A AC, which can be adjusted by the potentiometer. The LED indicator light can easily and intuitively indicate the working status of the switch.
  • ABS material: High-power MOS tube non-contact electronic switch is used, and the shell is made of self-extinguishing material ABS, which is heat-resistant, acid-alkali-resistant, high impact strength and stable in performance.

Why you should trust us?

This guide is the result of more than 10 years of experience in researching, testing, and writing about various subject. Our team members are experts in their fields. We spent 16 hours reading all the articles we could find online and all the customer reviews on various retail websites such as Amazon, Ebay, Alibaba or Flipkart. We also found many websites that provided valuable resources such as purchasing guides and detailed information on Current Monitoring Relays. To help you make the best choice among the hundreds of products available, we decided to offer you a comparison in order to find the best value for your money. We searched different fields to find the best Current Monitoring Relays. We also looked at the best alternatives for reasonably priced and easy to use products. After we determined our main parameters, we conducted our research and tests.These parameters separate a great product from an average one:

  • Price
  • Ease of use
  • Customer reviews
  • Quality
  • Durability

Conclusion

We hope this ranking was helpful to you in choosing the Current Monitoring Relays that best suits you. We made it thoroughly and we will update it regularly, so that you get a real-time comparison. Our goal is to allow you to compare models and prices, to get an overview of what the market has to offer. We are here to make it easier for you and to make informed decisions. If our ranking gave you a clearer view on the different products available, feel free to let us know in the comments section. We will happily read them.

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Last update on 2022-10-05 at 16:06 / Affiliate links / Images from Amazon Product Advertising API