- Home Page /
- Tools & Home Improvement /
- Electrical /
- Breakers, Load Centers & Fuses /
- Fuses /
- Cartridge Fuses /
- Pack of 5, T4AL250V, T4A 250V, T4L250V Cartri...
0 ratings
Item #:
18566999
Pack of 5, T4AL250V, T4A 250V, T4L250V Cartridge Glass Fuses 5X20mm (3/16" X 3/4"), 4A 250V, Slow-Blow (Time Delay)
87% of respondents would recommend this to a friend
Item #:
18566999
TZS 54083
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Thursday, October 08
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Voltage Rating
Designed to handle up to 250V, these fuses provide excellent protection for your electronic devices against overcurrent, ensuring safe operation in various applications.
Slow-Blow Design
The slow-blow (time delay) feature prevents nuisance blowing during temporary surges, making these fuses ideal for inductive loads and appliances with inrush currents.
Pack of Five
This convenient pack of five ensures you have ample spares on hand, saving time and costs on replacements while providing reliable performance for consistent safety.
Product Details
- Pack of 5 T4AL250V, T4A 250V, T4L250V Cartridge Glass Fuses
- Size: 5X20mm (3/16 X 3/4)
- Rated Current: 4A, Rated Voltage: 250V
- Type: Slow-Blow (Time Delay)
- Designed for time delay applications
- Durable and reliable fuse protection
| Brand Name | Witonics |
| Model | T4AL250V |
| Number of Items | 5 |
| Manufacturer | Witonics |
| Item Weight | 0.01 kg |
| Part Number | 43237-2 |
| Maximum Current | 4 A |
| Voltage | 125 volts, 250 volts |
| Mounting Type | Through-Hole Mount |
| Current Rating | 4 A |
| Item Dimensions | 3.5 x 0.25 x 2.25 inches (8.9 x 0.6 x 5.7 cm) |
| Material Type | Glass |
| Color | clear |
| AC Adapter Current | 4 A |
| Brand | Witonics |
| Item dimensions L x W x H | 3.5 x 0.25 x 2.25 inches (8.9 x 0.6 x 5.7 cm) |
| Material | Glass |
Who Should Buy?
-
Home Appliance Repairs
Ideal for users fixing electronics or appliances that require slow-blow fuses for extra protection against surges.
-
HVAC Systems
Great for HVAC technicians needing reliable fuses for air conditioning and heating systems with time-delay capabilities.
-
Small Electrical Projects
Perfect for hobbyists and DIY enthusiasts working on small electronics or circuit projects requiring dependable fuses.
-
High Power Devices
Not suitable for high amperage equipment which requires faster acting fuses for protection from overloads.
Product Description
Pack of 5, T4AL250V, T4A 250V, T4L250V Cartridge Glass Fuses 5X20mm (3/16" X 3/4"), 4A 250V, Slow-Blow (Time Delay)
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What are T4AL250V fuses used for?
Answer: T4AL250V fuses are specifically designed for protecting electrical circuits from overloads and short circuits. They are slow-blow fuses, meaning they can handle temporary surges in current without blowing, which is ideal for devices with high inrush currents like motors or transformers. This attribute ensures that your devices won't be damaged due to brief spikes in power, providing a layer of safety and reliability in household or industrial settings. -
Question:
What is the difference between fast-acting and slow-blow fuses?
Answer: The primary difference between fast-acting and slow-blow fuses lies in their response time to current surges. Fast-acting fuses blow quickly to protect sensitive components against overcurrent conditions, while slow-blow fuses can tolerate temporary current spikes for a specified duration. This makes slow-blow fuses, such as the T4AL250V, ideal for applications like motors where initial power surges may occur, providing effective protection without unnecessary disruptions. -
Question:
How do I know if I need a 4A 250V slow-blow fuse?
Answer: To determine if you need a 4A 250V slow-blow fuse, check the amperage requirements and characteristics of your device. If your application experiences temporary current spikes typical of motors or inductive loads, a 4A 250V slow-blow fuse is suitable to prevent nuisance blowing during normal operation. Always refer to your device's manual or specifications for proper fuse rating requirements to avoid potential damage while ensuring optimal performance. -
Question:
How should I install glass fuses safely?
Answer: When installing glass fuses like the T4AL250V, ensure the device is powered off to prevent electrical shock or damage. Carefully remove the old fuse using appropriate tools, inspect it for any signs of damage, and place the new fuse in the designated holder. Ensure it fits securely without forcing it to avoid potential short circuits. Consult the device's manual for specific installation instructions to ascertain compliance with safety protocols. -
Question:
Can I use these fuses in any electrical device?
Answer: While T4AL250V fuses can be used in many applications, it's crucial to confirm that the device's electrical specifications match the fuse rating. These fuses are particularly suitable for equipment with a current draw of up to 4A and a maximum voltage of 250V. Always replace fuses with the same rating to maintain safety and functionality, ensuring that the equipment operates correctly without risking overload or failure. -
Question:
What are the dimensions of T4AL250V fuses?
Answer: T4AL250V fuses measure 5x20mm (approximately 3/16" x 3/4"), making them compact and compatible with various devices. These dimensions are standardized, allowing for easy replacement in fuse holders designed for this size. Always verify that you are using the correct size fuse to maintain safety and proper function in your equipment. -
Question:
How can I tell if my fuse is blown?
Answer: To determine if your T4AL250V fuse is blown, visually inspect the glass casing for any cracks or a broken filament inside. If the fuse's filament is intact, it may still be functional, so it’s advisable to test it with a multimeter for continuity. Always disconnect the power to the device before testing or replacing fuses to avoid electrical hazards and ensure a safe operating environment. -
Question:
What is the significance of using time-delay fuses?
Answer: Time-delay fuses, like the T4AL250V, provide an essential function in protecting circuits that experience inrush currents. These fuses absorb temporary power surges without blowing, ensuring that electrical equipment, such as motors or transformers, operates without interruption. By using time-delay fuses, you can effectively safeguard your devices against damage while maintaining necessary power flow during start-up phases. -
Question:
Can I mix different types of fuses in my device?
Answer: Mixing different types of fuses in your device is not recommended, as it can lead to compatibility issues and potential hazards. Each fuse type is designed for specific applications, with varying response times and ratings. Using different fuse types can compromise the safety and functionality of your equipment. Always use fuses of the same rating and type as originally specified by the manufacturer to ensure optimal performance and safety. -
Question:
Where can I buy Pack Of 5, T4AL250V, T4A 250V, T4L250V Cartridge Glass Fuses?
Answer: You can purchase the Pack Of 5, T4AL250V, T4A 250V, T4L250V Cartridge Glass Fuses at Ubuy. Ubuy is a trusted online platform that offers a wide range of electronic parts and fuse options suited for various applications. They provide easy browsing for your fuse requirements, ensuring you find the right products for your needs.
Witonics Cartridge Fuses Editorial Review
This product is a T4A 250V ceramic fuse. Customers have asked various questions about compatibility which have been answered by other customers in the Q&A section. In terms of reviews, customers have generally been satisfied with the product and majority did not leave long reviews as it's just a fuse. It was said to be efficient, work just fine, delivered quickly, and perform perfectly. One customer did mention that the product did not match the photo perfectly, but still worked well. Another customer had issues with the first fuse blowing when they put it in but the second one didn't. Overall, customers seemed to have had positive experiences with this product.
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Efficient
- Works just fine
- Quick delivery
- Performs perfectly
Cons
- Product may not match the photo
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
People also bought these Items
Product Price History
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.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
TZS 54083
Order now and get it around Thursday, October 08
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.