10 Best Ac Current Relay In The Us - Black Friday 2024
Best Choice1
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.
9.8Exceptional
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Value for Money2
CrocSeeCrocSee Miniature Current Switch, CS-TS0, Normally Open Amp Sensor Monitoring Relay, AC 1-50A Detectable
9.7Exceptional
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3
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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4
WalfrontCurrent Sensing Switch, Normally Open Current Sensing Switch Adjustable AC 0.2-30A SZC23-NO-AL-CH
Main highlights- 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.
- Suitable for AC current measurement and monitoring, AC motor overload , electronic switch of automatic control system and so on.
- 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.
- High-power MOS tube contactless electronic switch.Straight-through structure design, isolation withstand voltage up to 2000V.
9.5Excellent
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5
nodehawkCurrent Sensing Relay AC Current Sensing Switch 0-200A Normally Closed Current Sensor Monitoring Relay (NC200)
Main highlights- Universal Outputs: Input through current: 0.5-200A AC Rated load: 0.3A@240V AC/DC.
- Normally Closed current sensor:Suitable for AC current measurement and monitoring, AC motor overload protection, electronic switch of automatic control system and so on.
- 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.
- Faster Response Time: Once current flow is detected, it closes a set of contacts immidiately; Response Time: ≤200ms
- Accurate & Dependable: Offers a sensing range of 0.5 to 200 amps and universal, solid-state outputs; Accuracy: 1%
9.2Excellent
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6
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
9.1Excellent
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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.
8.9Very Good
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8
LelukeeCurrent Sensing Relay AC Current Sensing Switch 0-50A Normally Closed Amp Sensor Monitoring Relay (M3066)
Main highlights- The range of the monitored current is up to 50 A, the monitoring threshold is adjustable
- 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
- Non-contact electronic switch with fast response and unlimited number of on and off operations
- Mutual inductive current monitoring, safety isolation of input and output, self-current monitoring
- Hysteresis is less than 1%. It can be used in devices to monitor strong magnetic environment.
8.8Very Good
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9
NikouNikou Current Sensing Switch, Adjustable AC 0.2-30A SZC23-NO-AL-CH Normally Open Current Sensing Relay for AC Current Measurement and Monitoring
Main highlights- 【Visual Monitoring】: Normally Open Current Sensing Switch Equipped with LED indicators, the switch offers a visual status of its operation, facilitating easier monitoring and troubleshooting, ensuring continuous and reliable performance.
- 【Self-Sufficient Design】: Current Sensing Switch is self-powered, eliminating the need for additional wiring or external power sources, which enhances its ease of use and installation in various settings.
- 【Efficient Operation】: AC Current Sensing Switch Features a high power MOS tube for non-contact electronic switching, promoting efficient switching operations and reliability with a fast response time in milliseconds, capable of handling unlimited cycling without degradation.
- 【Durability】: Constructed to withstand harsh industrial environments, the switch is ideal for various applications including AC current measurement, AC motor overload protection, and electronic switch control systems, ensuring versatility and resilience.
- 【Adjustable Sensitivity】: Adjustable Current Sensing Switch includes a built-in potentiometer that allows users to set the desired action current from 0.2 to 30A AC, making it highly customizable for different monitoring needs.
8.5Good
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10
Supco15% OffSupco 90370 General Purpose Fan Relay, 12 A Load Current, 24 V Coil Voltage, Single Pole Double Throw Contacts
Main highlights- Sealed enclosure
- SPST-NO, SPST-NC, SPDT 1 NO/1 NC contact forms
- Electric relay for receiving and controlling electric signals
- Controls signals for a fan
8.2Good
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