Looking for the best Current Switches?
Discover now our comparison of the best Current Switches. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Current Switches are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Current Switches in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
SaleNo. 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.
−9%
$19.99
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No. 2
DC Current Switch,Current Sensing Relay DC Current Sensing Switch 0-50A Amp Sensor Monitoring Relay D360
- 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
$28.99
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No. 3
Suncourt SW100 Current Switch
- Turns 120 VAC devices on when input current is sensed
- UL 94-V0 rated for flammability safety
- Item Package Dimension: 4.0" L x 4.0" W x 4.0" H
- Item Package Weight: 1.0 lb
No. 4
Current Sensing Switch, Normally Open Current Sensing Switch Adjustable AC 0.2-30A SZC23-NO-AL-CH
- 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.
$19.86
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No. 5
HiLetgo 2pcs 5A AC Current Sensor Current Detection Sensor Relay 12V AC Current Relay Module AC Sensor AC Current Relay Switch with Over Current Protection
- 5A AC Current Sensor Current Detection Sensor
- AC Current Relay Switch, 5V 12V 24V Optional
- Current detection resolution can change the parameter of resistance parameters
- Over-current signal setting critical point adjustable, the current detection range AC0.3A-5A
$10.99
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No. 6
Veris,Current Switch,Micro,Split-Core,Fixed,NO, H300
- Hawkeye 300 go/no go current switches provide a cost-effective solution for monitoring status on unit vents, exhaust fans, recirculation pumps, and other fixed loads where belt loss is not a concern.
- Applications: Monitoring on/off status of electrical loads. Monitoring direct-drive units, exhaust fans, and other fixed loads. Verifying lighting run time. On/off status for direct-drive fans, pumps, and process motors. More reliable for status than relays across auxiliary contactsIdeal for direct-drive units, unit vents, fan coil units, exhaust fans, and other fixed loads. Great for lighting status. Less expensive than 277V relays. Low 0.
- 0.15A Turn on
- Ideal for small exhaust fans (not intended to detect belt loss. Removable mounting bracket provides installation flexibility. Monitor status of fans, pumps, motors & other electrical loads. Split-core for fast retrofit installation. Micro housing for tight enclosures.
- Saves valuable panel space 100% solid-state, no moving parts to fail. Polarity insensitive output 5-year limited warranty.
No. 7
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 speed reaches the ms level.
$20.77
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No. 8
AC Current Sensing Switch 0-200A Normally Closed Current Sensor Monitoring Relay (NC200)
- 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
- 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.
$18.69
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No. 9
nodehawk Miniature Current Switch,Current Sensing Switch,with Rails,Normally Open Amp Sensor Monitoring Relay, AC 0-30A Detectable（M3050）
- Multi-Purpose: M3050 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.
$16.99
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No. 10
Veris H608 Split Core Adjustable Trip Current Switch
- Frequency Range: 50 to 60 hz
- Temperature Range: 5 to 140 degrees F
- 1 Amp status output
- Humidity Range 10 to 90 per cent (non condensing)
- NOTE: Do not use the LED status lights as indicators of applied voltage.
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Last update on 2025-06-15 / Affiliate links / Images from Amazon Product Advertising API