Are you trying to find current monitoring relays among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!
We investigated and evaluated a number of the top-selling current monitoring relays on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 29 hours of research and did 51 current monitoring relays tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!
An overview of our top picks
Table of contents
The best current monitoring relays you can buy today
- Universal Outputs: Input through current: 0.2-50A AC Rated load: 0.3A@240V AC/DC.
- Accurate & Dependable: Offers a sensing range of 0.2 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
- Mutual inductance current monitoring,security isolatino of input and output,Self-powered,adjustable with a potentiometer.LED indicator can conveniently and intuitively indicate the working status of the switch.
- Normally Closed current sensor:Suitable for AC current measurement and monitoring, AC motor overload protection, electronic switch of automatic control system and so on.
- 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.
- Small Size: This 3-Phase Monitoring Relay has a small compact size for easy 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 , 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 to be achieved for machines, plants and systems, and avoid far more significant subsequent damage, very convenient and useful
- Multi-Purpose: M3070 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: 0-100A 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 0-100A 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.
- Basic Function:When the piercing current exceeds the set value, the output switch will act Automatically reset when the piercing current is less than the set value.
- Set threshold: set the threshold when the perforation current exceeds the threshold, the relay will work, and when the perforation current is lower than the threshold, the relay will reset
- Indicator light: the indicator light is off when there is no current, the green light is on when the current is lower than the threshold, and the red light is on when the current is higher than the threshold
- D366 support Delay adjustment: power-off delay can be set from 0 to 99 seconds, clockwise to increase and counter-clockwise to decrease
- Detection range: 0-50A, 6A@240V AC/DC contact capacity
- brand new and high quality.
- High , 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 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
- 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 speed reaches the ms level.
- Self-powered-No external power supply required. Action current 0.2-30A AC, adjustable with a potentiometer.
- LED Indicator-LED indicator can conveniently and intuitively indicate the working status of the switch.
- Contactless Electronic Switch-High-power MOS tube contactless electronic switch. The switch has no limit on the number of opening and closing, and the speed reaches the ms level.
- High Performance-The outer casing is made of self-extinguishing material ABS. Straight-through structure design, isolation withstand voltage up to 2000V. Hysteresis is less than 1% and can be used under strong magnetic conditions.
- Widely Application-This Current Sensing Switch is suitable for AC current measurement and monitoring, AC motor overload , electronic switch of automatic control system and so on.
- Multi-Purpose: M3056 AC with rails 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
- Accurate and Adjustable Sensing: SZC23 series AC current sensing switch allows for easy and precise monitoring of AC currents ranging from 0.2A to 30A. With a built-in potentiometer, users can easily set the desired action current.
- Self-Powered and Reliable: Unlike other current sensing switches on the market, current sensing switch does not require an external power supply. This ensures reliable operation without the need for additional wiring or power sources.
- Intuitive LED Indicator: Integrated LED indicator provides a convenient and visual display of the switch's working status, allowing users to easily monitor and troubleshoot any issues.
- High-Performance Switching: Equipped with a high-power MOS tube electronic switch, SZC23 current sensing switch ensures efficient and contactless switching operations. It can handle numerous opening and closing cycles without any performance degradation and boasts a rapid reaction speed in the millisecond range.
- Robust Design and Versatility: With its straight-through structure design and isolation withstand voltage of up to 2000V, SZC23 current sensing switch can withstand demanding industrial environments. It is suitable for a wide range of applications, including AC current measurement and monitoring, AC motor overload protection, and electronic switch control systems.
- 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.Hysteresis is less than 1% and can be used under strong magnetic conditions.
- The switch has no limit on the number of opening and closing, and the speed reaches the ms level.The outer casing is made of self-extinguishing material ABS.
- High-power MOS tube contactless electronic switch.Straight-through structure design, isolation withstand voltage up to 2000V.
- Suitable for AC current measurement and monitoring, AC motor overload , electronic switch of automatic control system and so on.
- Switch Electrical Current SELF POWERED: This current sensor relay is self powered, it is no external power supply required. And its action current is 0.2-30A AC, adjustable with a potentiometer.
- Price For: Each Contact Configuration: SPDT Power Consumption: 2VA Supply Voltage Max: 120VAC Supply Current Max: 15A Relay Mounting: Quick Connect Carry Current: 10A Coil Voltage VAC Nom: 120V RoHS Compliant: No
- Accurate and Reliable: AC current sensing switch provides induction range and general solid-state output with current range of 0.2-30A. Its measurement accuracy is better than 1%, which is suitable for the measurement of any waveform
- Wide Measuring Range of Current Sensor: Miniaturization current switch can measure the current and voltage of any waveform, such as DC, AC, pulse, triangular waveform, etc., and can faithfully reflect even the transient peak current and voltage signals
- High Response Speed: Flameproof adjustable AC current sensing switch will immediately close a group of contacts once current is detected. Response time: ≤ 200ms, the extremely high response speed also adds another layer of guarantee to the safety performance of flameproof adjustable AC current sensing switch
- High Safety: Self powered sensing switch for automated industrial equipment uses the electromagnetic induction principle of current and adopts advanced output detection, monitoring, protection and alarm products developed by non power supply technology. At the same time, it has wide frequency band, strong anti-interference ability and strong overload ability. A series of guarantees escort the safety of self powered sensing switch for automated industrial equipment
- Wide Scope of Application: Adjustable isolation AC current switch is applicable to substation, variable frequency speed regulation device, inverter device, electroplating, electric locomotive, street lamp monitoring, coal mine and other automation industries requiring current monitoring. NC / no current switch can control various automatic industrial equipment, flashlight, buzzer, relay, microcontroller or other electrical load devices
- 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. Hysteresis is less than 1% and can be used under strong magnetic conditions. SZC23 series AC current sensing switch is designed to solve the AC current monitoring
- Self-powered, no external power supply required. The switch has no limit on the number of opening and closing, and the speed reaches the ms level.
- The outer casing is made of self-extinguishing ABS material. Straight-through structure design, isolation withstand voltage up to 2000V.
- Suitable for AC current measurement and monitoring, AC motor overload , electronic switch of automatic control system and so on.
- [Specifications] The product model AD22B04, working voltage DC 12V, with reverse polarity .
- [Instruction] The default control command 1/2/3/4. Example: Dial 1 to control relay 1, dial 2 to control relay 2, dial 3 to control relay 3, dial 4 to control relay 4; control commands can be changed any 1-4 bits. (For more details refer to manual).
- [Instruction] The default control 1/2/3/4. Example: Dial 1 to control relay 1, dial 2 to control relay 2, dial 3 to control relay 3, dial 4 to control relay 4; control commands can be changed any 1-4 bits. (For more details refer to manual).
- [Operating Current] Standby 11-13 MA, 1 relay open 44MA, 2 relays Open 77MA, 3 relays Open 110MA, 4 relaysopen 140MA.
- 【default control】The default control 1/2/3/4. Example: Dial 1 to control relay 1, dial 2 to control relay 2, dial 3 to control relay 3, dial 4 to control relay 4; control commands can be changed any 1-4 bits. (For more details, refer to AD22B04_4 channel DTMF controller commands setting manual ).
- FEATURE: Current Sensing Switch has the characteristics of high , stable performance and long service life. It is an ideal choice for automatic industrial control equipment and power monitoring.
- FEATURE: Current Sensing Switch has the characteristics of high , stable performance and long service life. It is an ideal choice for automatic industrial control equipment and power monitoring.
- SELF-EXTINGUISHING MATERIAL: The outer casing is made of self-extinguishing material ABS,which has great performance of heat resistance, and alkali resistance,high impact strength and stable performance.
- HIGH PERFORMANCE: Self-powered, no external power supply required, high-power MOS tube non- electronic switch. The operating current of 0.5-50A AC can be adjusted by the potentiometer.The switch has no limit on the number of opening and closing, and the speed reaches the ms level.
- AUTOMATION EQUIPMENT CONTROL: This AC current sensing switch is designed and manufactured to solve the AC current monitoring.Control various automation industrial equipment, flashlights, buzzers, relays, microcontrollers,single chip,or other electrical load devices.
- 【Action Current 02】: 2-30A AC, adjustable with potentiometer.
- 【Easy To Use】: The current sensing switch is self-powered, requires no external power supply, operates at 0.2-30A AC, and can be adjusted with a potentiometer.
- ★ The LED indicator can conveniently and intuitively indicate the working status of the switch.
- 【Widely Used】: It is suitable for AC current measurement and monitoring, AC motor overload , automatic control electronic switch.
- ★ High power MOS tube contactless electronic switch.
- Mutual inductive current monitoring, safety isolation of input and output, self-current monitoring
- The range of the monitored current is up to 10 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
- 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
- Adopt SMD optocoupler isolation, strong driving ability and stable performance.
- DC 12V power supply (voltage range 9-13V). Under the Delay command, the maximum delay is 255 seconds.
- This 8 Channel 12V Relay Module, able to control various appliances.
- Standby current (all relays closed) 12MA, 1 relay open 40MA, 2 relays open 67MA, 3 relays open 95MA, 4 relays open 121MA, 5 relays open 147MA, 6 relays open 173MA, 7 relays open 198MA, 8 relays open 223MA
- The interface design is humanized, and the interface can be directly connected through the terminal block, which is very convenient.
How to choose a good current monitoring relays
Does the idea of finding a fantastic current monitoring relays make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!
Your presence here indicates that you are interested in current monitoring relays. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top current monitoring relays products available right now. You might be wondering how we came up with the list. How was this buying guide developed?
First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top current monitoring relays on the market right now!
The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:
Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top current monitoring relays brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.
Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top current monitoring relays based on those.
Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.
Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.
Customer ratings: Would it be accurate to suggest that the current monitoring relays were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.
Customer Reviews: Like ratings, provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.
Seller Rank: This is very intriguing! Not only do you need a good current monitoring relays, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.
Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your current monitoring relays.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting current monitoring relays for months and years to come.
Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.
Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.
These are the standards by which we selected our current monitoring relays. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.
Why should you believe us?
There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what current monitoring relays should you purchase in 2022?
This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on current monitoring relays.
