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Item #:
43672498
AC Current Sensing Switch, 0.2-30A Self-Powered Monitoring Relay, Normally Closed, Industrial Control Equipment Sensor
Item #:
43672498
LKR 9888
Price Details
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*All items will import from US
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Imported from USA store
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Order now and get it around Friday, August 14
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An ideal choice for automatic industrial control equipment and electric power monitoring.
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What Stands Out
Self-Powered Design
Eliminates the need for external power, reducing installation complexity and enhancing flexibility. It offers consistent performance across various applications without relying on additional energy sources.
Wide Current Range
Accommodates a broad current spectrum of 0.2 to 30A, making it versatile for different devices and appliances. Ideal for various residential and industrial monitoring setups.
Normally Closed Operation
Ensures reliable operation in a fault condition by maintaining circuit integrity. Provides enhanced safety and protection against unexpected current fluctuations, making it suitable for critical applications.
Product Details
| Operation Mode | Automatic |
| Current Rating | 30 Amps |
| Operating Voltage | 240 Volts |
| Contact Type | Normally Closed |
| Connector Type | Screw |
| Switch Type | Electromagnetic |
| Terminal | Screw |
| Circuit Type | 1-way |
| Mounting Type | Panel Mount |
| Actuator Type | Automatic |
| Number of Positions | 1 |
| Upper Temperature Rating | 55 Degrees Celsius |
| Control Method | Touch |
| Connectivity Protocol | X-10 |
| Wattage | 120 watts |
| Control Type | Basic |
| Compatible Devices | Industrial control equipment, flash, buzzer, relay, single chip, power load equipment, substation, frequency control device, inverter device, electrolytic plating, electric locomotive, street lamp monitoring, coal mine automation industry. |
| Smart Home Compatibility | Not Smart Home Compatible |
| Color | Black |
| Item Dimensions | 1.97 x 2.56 x 0.98 inches (5 x 6.5 x 2.5 cm) |
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Material Type | Plastic |
| Contact Material | Copper, Brass |
| International Protection Rating | IP30 |
| Specification Met | Electromagnetic |
| Brand Name | YWBL-WH |
| Model | YWBL-WHhxgnqre5cf-02 |
| Manufacturer | YWBL-WH |
| UPC | 738674419391 |
| Part Number | YWBL-WHhxgnqre5cf-02 |
| Included Components | inc |
| Item Weight | 0.01 Kilograms |
| Brand | YWBL-WH |
| Material | Plastic |
| Item dimensions L x W x H | 1.97 x 2.56 x 0.98 inches (5 x 6.5 x 2.5 cm) |
| Country of Origin | This item will be imported from US |
| Date First Available | April 09, 2021 |
Who Should Buy?
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Home Automation
Ideal for users wanting to control home appliances automatically based on current usage.
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Energy Monitoring
Great for energy-conscious individuals tracking power consumption to optimize efficiency and reduce bills.
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Industrial Applications
Suitable for professionals managing equipment that requires current monitoring and automatic shutdown for safety.
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High Current Needs
Not suitable for devices drawing above 30A, limiting its use in high-load industrial scenarios.
Product Description
AC Current Sensing Switch, 0.2-30A Self-Powered Monitoring Relay, Normally Closed, Industrial Control Equipment Sensor
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is an AC Current Sensing Switch and how does it work?
Answer: An AC Current Sensing Switch detects the current flow in an electrical circuit and automatically activates or deactivates a connected device. This switch operates by measuring the electromagnetic field generated by the current. When the current exceeds a specified threshold, it engages or disengages the circuit, providing reliable control and safety. Common use cases include protecting equipment from overloads and automating machinery operation, ensuring both energy efficiency and safety in various settings. -
Question:
What is the significance of the 'flameproof' feature in this switch?
Answer: The 'flameproof' designation indicates that the AC Current Sensing Switch is designed to operate safely in hazardous environments where flammable gases or vapors may be present. This feature prevents ignition of hazardous materials in case of an internal explosion. Businesses operating in industries like oil, gas, or chemicals often require flameproof equipment to comply with safety regulations and to protect personnel and assets from potential ignition sources. -
Question:
What is the adjustable current range of this sensing switch?
Answer: This AC Current Sensing Switch has an adjustable current range of 0.2A to 30A, allowing it to accommodate various electrical loads. This flexibility ensures it can be used in different applications, from small devices like fans and lights to larger equipment like motors. By adjusting the switch to the appropriate current level, users can achieve effective energy management while preventing overload situations, making it ideal for both residential and industrial purposes. -
Question:
Is the IP30 rating suitable for outdoor use?
Answer: The IP30 rating indicates that the switch offers protection against solid objects larger than 2.5mm but does not provide protection against water or moisture. Therefore, it is not suitable for outdoor use or in damp conditions. For outdoor applications, it’s important to select equipment with a higher IP rating that specifically offers water and dust protection, ensuring longevity and reliable operation in exposed environments. -
Question:
What does 'normally closed' mean in the context of this switch?
Answer: 'Normally closed' means that in its unpowered state, the switch allows current to flow through. It becomes open when it detects current above the set threshold, disconnecting the circuit. This configuration is useful for systems that require immediate activation of safety shutdowns or alarms when an anomaly occurs. For example, in equipment safety mechanisms, it can prevent damage by automatically cutting power in fault scenarios. -
Question:
Can this switch be used with a variety of electrical devices?
Answer: Yes, the AC Current Sensing Switch is compatible with a wide array of electrical devices due to its adjustable current range. You can utilize it for household appliances, industrial machinery, and HVAC systems, enabling smart energy management and automation. This versatility supports both commercial and residential settings, adapting to diverse operational needs while optimizing performance. -
Question:
What applications are ideal for this self-powered sensing switch?
Answer: The self-powered nature of this sensing switch makes it ideal for applications where consistent power supply is essential, but conventional power sources may not be reliable. It is commonly used for monitoring systems, automation in industrial controls, and protective measures in HVAC installations. Its ability to operate without an external power source enhances its usability in remote or critical applications. -
Question:
How does this switch contribute to energy efficiency?
Answer: This AC Current Sensing Switch helps optimize energy consumption by allowing systems to operate only when necessary. By automatically cutting power in cases of overload or when certain thresholds are reached, it minimizes wasted energy and prolongs the life of equipment. This not only lowers electricity costs but also aids in environmental conservation efforts through reduced power consumption. -
Question:
What safety measures should I consider when installing this switch?
Answer: When installing the AC Current Sensing Switch, it's crucial to follow safety protocols such as ensuring proper grounding and using appropriate protective gear. Make sure to adhere to local electrical codes and standards, as well as consulting an electrician if unsure about the installation process. This will help prevent electrical hazards and ensure that the switch operates effectively within its designed parameters. -
Question:
Where can I buy the AC Current Sensing Switch in Sri Lanka?
Answer: You can purchase the AC Current Sensing Switch Flameproof Adjustable 0.2~30A IP30 Self-Powered Sensing Switch Normally Closed at Ubuy. They offer a wide selection of electronic components, allowing you to find the specific switch you need conveniently. Ubuy guarantees a seamless shopping experience with extensive options suited for various applications.
YWBL-WH Current Switches Editorial Review
The Normally Closed Current Sensing Relay is a versatile device that senses current and opens or closes a circuit. It comes with sensitivity adjustment options that can be dialed in to suit the appliance, and a green light indicator that shows the contacts remain closed. Once the current reaches the setpoint, the light changes to red and the contacts open, breaking the circuit. Some customers have found the device to be inConsistent in operation, with a large window for the setpoint, making it more like a latching relay than a switch. However, others have had success using it to drive a relay, control 12 amps or switch a vent fan that draws 0.5 amps. The device is relatively easy to use out of the box, but some customers have found the instructions unclear. Overall, the Normally Closed Current Sensing Relay is a useful device for those who need to sense current and control a circuit. With sensitivity adjustments and accurate current sensing abilities, it can perform a range of applications.
Customer Reviews & Ratings
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Pros
- Versatile device
- Adjustable sensitivity
- Green light indicator for closed contacts
- Can drive a relay and control up to 12 amps
Cons
- InConsistent operation for some customers
Platform Trust & Buyer Confidence
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Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Chitra
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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SAO JOHN
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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LKR 9888
Order now and get it around Friday, August 14
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Features & Benefits
- Switch Type: Normally Open/Normally Closed
- Power Supply: Self-Powered
- Starting Current/Frequency Range: 0.2-30A, 40-400Hz
- Uses electromagnetic mutual inductance principle
- Advantages: high accuracy, stable performance, and long service life
- Widely used in various industries
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