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  7. YWBL-WH AC Current…
YWBL-WH

YWBL-WH AC Current Sensing Switch 0.2-30A | Self-Powered Relay for Electrical Panel Protection

4.2
(38 Ratings)
YWBL-WH AC Current Sensing Switch 0.2-30A | Self-Powered Relay for Electrical Panel Protection - main product image
All-inclusive price — duties & taxes paid, no customs charges at delivery
₹3,850₹5,970

You save ₹2,120 (36%)

36% off the seller list price

Qty
YWBL-WH AC Current Sensing Switch 0.2-30A | Self-Powered Relay for Electrical Panel Protection — Normally Open
Normally Open
₹3,850
₹5,970
In Stock
YWBL-WH AC Current Sensing Switch 0.2-30A | Self-Powered Relay for Electrical Panel Protection — Normally Closed
Normally Closed
₹4,080
₹5,390
In Stock

Doorstep delivery by 26 Oct - 28 Oct from USA

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Automate Your Electrical Monitoring

About this item

The YWBL-WH AC Current Sensing Switch offers a self-powered, non-intrusive solution for monitoring electrical loads from 0.2A to 30A. It uses electromagnetic induction, eliminating the need for external power supplies or batteries. This makes installation simple, especially in retrofits within electrical panels or junction boxes. The switch provides a relay output for direct control of industrial automation devices, buzzers, and microcontrollers, reducing wiring complexity.

With a wide current detection range of 0.2-30A and ±3% accuracy at 60Hz, this sensor enables reliable load tracking for various applications. It supports both Normally Open (NO) and Normally Closed (NC) configurations, with a switch capacity of 0.5A at 12-240VAC/DC. The fireproof ABS shell and IP30 rating ensure durability in industrial environments, operating between -10~55°C.

This current sensing switch is ideal for substations, frequency control devices, and street lamp monitoring. It offers advantages over traditional transformers and thermal protectors with its long service life. Imported directly for Indian customers, all customs duties and GST are included in the price. Delivery is handled via ExpressBox for secure transit.

Key Features

  • Multifunctional Control: AC Current Sensing Switch enables direct control of industrial automation devices including flash units, buzzers, relays, microcontrollers, and power loads without signal conversion hardware. Supports 5–200A detection range and 120V/240V AC systems. Integrates into existing control loops for immediate equipment response. Reduces wiring complexity in factory machine interfaces and maintenance panels.
  • Wide Current Detection Range: AC Current Sensing Switch delivers precise real-time monitoring across 5 to 200 amps (200A = 440A peak), compatible with standard North branch circuits. Features ±3% accuracy at 60Hz and operates from 45–400Hz. Enables reliable load tracking for HVAC compressors, lighting arrays, and motor starters in commercial buildings.
  • Self-powered Passive Technology: AC Current Sensing Switch uses electromagnetic induction to generate operating power directly from measured current—zero external wiring or batteries required. No power supply footprint or voltage compatibility checks needed. Simplifies retrofit installation in tight enclosures like breaker panels and junction boxes.
  • Extensive Industrial Applications: 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.
  • Advantages: Compared with traditional transformer and thermal protector, it has the advantages of , and long service life.

Why choose this product

Reliable Industrial Automation Control

This YWBL-WH AC Current Sensing Switch provides robust monitoring for industrial automation. Its self-powered design simplifies installation, while the wide current range and relay output ensure seamless integration with control systems. Unlike basic sensors, it offers direct control capabilities, reducing the need for complex signal conversion hardware. It's built for demanding environments, ensuring consistent performance in substations and factory settings. All customs duties and GST are pre-paid for a transparent purchase experience in India.

Who It's For vs. Who Should Skip It

Ideal for electricians, automation engineers, and maintenance professionals needing to monitor and control electrical loads in industrial settings, substations, or commercial buildings. It's perfect for retrofitting into existing panels or new installations requiring precise current monitoring. Skip this if you need to monitor DC current, as it is designed exclusively for AC circuits. Also, if your application requires a current rating significantly above 30A or a higher IP rating for extreme environmental protection, consider specialized industrial equipment.

How to use

  • Identify Conductor — Locate the AC power conductor for the device or circuit you need to monitor. Ensure the conductor's diameter is suitable for the switch's 9mm threading hole.
  • Install Switch — Carefully thread the identified AC conductor through the switch's aperture. Mount the switch securely using its flat installation design onto a suitable surface within the electrical panel or enclosure.
  • Wire Relay Output — Connect the relay output terminals (Normally Open or Normally Closed, as per your requirement) to your control system, such as a PLC input, alarm, or contactor coil, ensuring compatibility with the 0.5A@12-240VAC/DC switch capacity.
  • Test Operation — Energize the monitored circuit and observe the switch's indicator light. Test the relay output by verifying it triggers correctly when the current crosses the set threshold, confirming proper function for load monitoring.

Example scenarios

Typical situations where YWBL-WH AC Current Sensing Switch 0.2-30A | Self-Powered Relay for Electrical Panel Protection helps — illustrative scenarios, not customer reviews.

1
Scenario 1
Illustrative example
Where it helps

An industrial facility in Pune needs to monitor the current draw of a critical motor to prevent overload and ensure timely maintenance.

How this product helps

The YWBL-WH AC Current Sensing Switch can be installed non-intrusively around the motor's power cable. Its self-powered relay output can trigger an alarm or shut down the motor if current exceeds the 30A limit, protecting equipment and preventing costly downtime.

2
Scenario 2
Illustrative example
Where it helps

A solar panel installation company in Rajasthan requires a system to monitor the AC output from inverters for load balancing and performance tracking.

How this product helps

This switch can be integrated into the AC output circuit of the inverter. It provides real-time current monitoring and can signal a control system to adjust load distribution or alert operators to performance anomalies, ensuring optimal energy generation.

Specifications

Composition

Sensing TechnologyElectromagnetic Induction
Contact MaterialMetal

Usage

Compatible DevicesIndustrial automation devices, flash units, buzzers, relays, microcontrollers, power loads, substations, frequency control devices, inverter devices, electric locomotives, street lamp monitoring, coal mines.
Operating Voltage12-240 VAC/DC
Max Current Rating30A
Detection Range0.2A - 30A
Accuracy±3% @ 60Hz
Installation TypeFlat Installation / Surface Mount
Terminal TypeScrew Terminals

How we compare

FeatureYWBL-WH AC CurrentOthers
Power SourceSelf-powered via electromagnetic induction; no external power needed.May require separate 12-240V AC/DC power supply; installation complexity varies.
Current Range0.2A - 30A ACVaries by brand; common ranges include 5-100A or 10-200A. Check specific models.
Output TypeNormally Open/Normally Closed relay output (0.5A@12-240VAC/DC)Typically offers NO/NC relay outputs; contact ratings vary significantly.
InstallationNon-intrusive, 9mm threading hole, flat mount, simple wiring.Solid-core requires conductor threading; split-core clamps around existing wire. Mounting options vary.
DurabilityFireproof ABS shell, IP30 rating, -10~55°C operating temp.Materials and IP ratings vary; industrial-grade options available.

Product details

SKUgwy4514
GTIN0738674419384
BrandYWBL-WH
ModelYWBL-WHhxgnqre5cf-01
Switch TypeNormally Open/Normally Closed (Optional)
Power SupplySelf-Powered
Starting Current Range0.2-30A
Frequency Range40-400Hz
Startup Time<0.1 Seconds
Switch Capacity0.5A@12-240VAC/DC
Overload Capacity+100%@30A
Threading Hole Diameter9mm
Indicator LightRed and Green
Installation FormFlat Installation
Shell MaterialFireproof ABS
Working Temperature-10~55 °C
Working Humidity0-95% (No Condensation)
IP RatingIP30
Dimensions46 x 65 x 25mm / 1.81 x 2.56 x 0.98in
Item Weight0.06 kg (0.13 lb)
Package Weight0.07 kg (0.15 lb)
Country of OriginNot stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners

About YWBL-WH

YWBL-WH specializes in industrial electrical components, offering reliable sensors and control devices for automation and monitoring applications.

Compliance & Legal

No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.

Customer Reviews

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FAQ, See What Others Asked

Is this AC current sensing switch safe for use in India?
Yes, this AC current sensing switch is designed for industrial applications and operates on standard AC voltages up to 240V, compatible with India's 230V mains. It is self-powered and built with a fireproof ABS shell. For safe installation, always ensure wiring is performed by a qualified electrician according to local electrical codes.
How do I choose the right current sensing switch for my application?
Consider the maximum current you need to monitor (this switch handles 0.2-30A AC) and the type of output required (Normally Open or Normally Closed relay). Ensure the threading hole diameter (9mm) fits your conductor and the operating voltage (12-240VAC/DC) matches your control circuit. This self-powered model simplifies installation by not needing external power.
How to use the YWBL-WH AC Current Sensing Switch?
Install the switch by threading the AC conductor through the 9mm aperture. Connect the relay output terminals to your control circuit, such as a PLC input or a contactor coil. The switch activates based on the monitored current, providing a signal without external power. Refer to the user manual for specific wiring diagrams.
What is the best AC current sensing switch for industrial automation?
The YWBL-WH AC Current Sensing Switch is a strong contender for industrial automation due to its self-powered design, wide current range (0.2-30A), and reliable relay output. It simplifies wiring and integrates directly with control systems, offering a cost-effective solution for load monitoring and equipment response.
Can I use this current sensing switch daily for load monitoring?
Yes, this switch is designed for continuous industrial applications and features a long service life. Its robust construction and self-powered operation make it suitable for daily load monitoring and automation control tasks in various industrial environments.
What are the benefits of using a self-powered current sensing switch?
Self-powered operation eliminates the need for external power supplies or batteries, simplifying installation and reducing wiring complexity. It also lowers operational costs and removes potential points of failure associated with separate power sources, making it ideal for retrofits and compact enclosures.
Are there any side effects of using an AC current sensing switch?
This device is a passive component designed for monitoring and control. When installed correctly by a qualified electrician, there are no inherent side effects. Ensure the switch's specifications (voltage, current, contact rating) are compatible with your system to prevent operational issues.
What are the benefits of this AC current sensing switch?
Key benefits include its self-powered operation, wide current monitoring range (0.2-30A), direct control of automation devices via a relay output, and durable fireproof ABS construction with IP30 rating. It simplifies installation and reduces wiring complexity in industrial settings.

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YWBL-WH AC Current Sensing Switch 0.2-30A | Self-Powered Relay for Electrical Panel Protection

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YWBL-WH AC Current Sensing Switch 0.2-30A | Self-Powered Relay for Electrical Panel Protection

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YWBL-WH AC Current Sensing Switch 0.2-30A | Self-Powered Relay for Electrical Panel Protection

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YWBL-WH AC Current Sensing Switch 0.2-30A | Self-Powered Relay for Electrical Panel Protection

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Rating
4.20(38)
3.67(3)
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Brand NameYWBL-WHYWBL-WHQuartetuxcellALKOOSmartSignGORILLA
SourceUS RetailUS RetailUS RetailUS RetailUS RetailUS RetailUS Retail
Sold ByCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrow
Imported from USA
₹3,850₹5,970

You Save ₹2,120

Estimated delivery: Doorstep delivery by 26 Oct - 28 Oct from USA
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