10 Best Current Monitoring Relays In The Us - Black Friday 2024
Best Choice1
LelukeeDC Current Switch,Current Sensing Relay DC Current Sensing Switch 0-50A Amp Sensor Monitoring Relay D360
Main highlights- 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
- Detection range: 0-50A, 6A@240V AC/DC contact capacity
- D366 support Delay adjustment: power-off delay can be set from 0 to 99 seconds, clockwise to increase and counter-clockwise to decrease
- 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.
9.9Exceptional
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Value for Money2
Tyenaza3-Phase Monitoring Relay, Current/Voltage Monitoring Relay Phase Sequence Protector for Three-Phase System, Without Neutral(GRV8-04,M460)
Main highlights- 【Rated Voltage】: Rated Voltage up to 552AC Voltage measurement accuracy<1%.
- 【LED Indicator】The working status of the voltage control relay is indicated by the LED indicator.
- 【High Accuracy】: The voltage relay has 8 adjustable rated voltages, and the voltage measurement accuracy is less than 1%.
- 【Application】: Equipment protection and control (tower cranes, elevators, agricultural equipment, refrigerated trucks); prevent reverse operation of equipment; normal/emergency power switch; prevent phase failure of dynamic loads.
- 【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
9.8Exceptional
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3
CrocSeeCrocSee Miniature Current Switch, CS-TS0, Normally Open Amp Sensor Monitoring Relay, AC 1-50A Detectable
9.7Exceptional
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4
nodehawknodehawk Current Sensing Relay AC Current Sensing Switch 0-30A Normally Open Current Sensor Monitoring Relay (M3050)
Main highlights- 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
- 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
- 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
- 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
- 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
9.6Exceptional
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5
EjoyousCurrent Measuring Switch AC, SZC23 NO AL CH Current Detection Switch Current Sensor Control Switch Current Measuring Relay Adjustable Load Shedding Relay Current Monitoring Relay
Main highlights- 【Versatile Applications】This current measurement switch AC is suitable for a variety of applications including AC current measurement and monitoring, overload for AC motors and electronic switch control in automatic systems. Enjoy the flexibility and versatility of using this switch in various electrical and automation configurations
- 【Self-powered】This current detection switch does not require an external power supply, making it practical and energy efficient. Say goodbye to the hassle of dealing with additional power sources and enjoy the simplicity of self-sufficient operation.
- 【Intuitive LED Display】With a built-in LED display, this current sensing switch provides a convenient and intuitive way to monitor its working status. Stay informed at a with visual feedback from the LED display, ensuring easy operation and maintenance.
- 【High Performance MOS Tube Switch】Equipped with a high performance non- electronic MOS tube switch, this current measurement switch provides and efficient performance. from a switch design that can easily handle high power loads and ensure smooth operation in various applications
- 【Adjustable Current】The current measuring switch has an adjustable action current range of 0.2-30A AC, so you can adjust it to your specific needs. The hysteresis is less than 1% and can be used under strong magnetic conditions. Easily adjust current with a potentiometer to precisely control and monitor electrical systems
9.3Excellent
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6
HilitandCurrent Sensing Switch, Normally Open Current Sensing Relay Adjustable AC 0.2A -30A (SZC23 No AL-CH Model)
Main highlights- 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.
- LED indicator can conveniently and intuitively indicate the working status of the switch.
- High-power MOS tube contactless electronic switch.
- Action current 0.2-30A AC, adjustable with a potentiometer.
9.2Excellent
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7
YWBL-WHAC Current Sensing Switch 0.2~30A Self-Powered Current Sensor Monitoring Relay (Normally Open)
Main highlights- Widely used in substation, frequency control device, inverter device, electrolytic plating, electric locomotive, street lamp monitoring, coal mine and other need current monitoring automation industry.
- Using the electromagnetic mutual inductance principle of current, the advanced switch output detection, monitoring and alarm type products without power supply technology are adopted.
- The current sensing switch is for , convenient monitoring or detecting the current of electric equipment. An ideal choice for automatic industrial control equipment and electric power monitoring.
- Controlling of various automatic industrial control equipment, flash, buzzer, relay, single chip, or other power load equipment.
- Compared with traditional transformer and thermal protector, it has the advantages of high accuracy, stable performance and long service life.
9.0Excellent
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8
nodehawknodehawk Miniature Current Switch,Current Sensing Switch,with Rails,Normally Closed Amp Sensor Monitoring Relay, AC 0-30A Detectable（M3056）
Main highlights- 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
- 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
- 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
- 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
- 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
8.9Very Good
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9
WalfrontDPA51CM44 3 Phase Monitoring Relay Current Voltage Monitoring Relay Phase Sequence Protector 208-480VAC Phase Sequence Protector with Indicator for 3 Phase Motor
Main highlights- 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
- 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
- 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
- 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
8.6Very Good
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10
EVTSCANEVTSCAN Latest DPA51CM44 3-Phase Monitoring Relay, Current/Voltage Monitoring Relay Phase Sequence Protector for Three-Phase System, Without Neutral, Phase Loss, 208-480VAC
Main highlights- 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
- 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
- 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
- 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
8.5Good
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