Features & Benefits
- UL listed power fuse
- Time delay characteristics
- 600 Vac/500 Vdc, 40 Ampere
- Interrupting rating - 200 Kiloampere (Ac), 100 Kiloampere (Dc)
- Ferrule terminal
- Diameter: 1-1/16 Inch, Length: 2-3/8 Inch
- Home Page /
- Tools & Home Improvement /
- Electrical /
- Breakers, Load Centers & Fuses /
- Fuses /
- Cartridge Fuses /
- Mersen AJT40 Fuse, Class J Time Delay, 10-Pac...
0 ratings
Item #:
44027834
Mersen AJT40 Fuse, Class J Time Delay, 10-Pack
Item #:
44027834
UZS 5602995
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 Friday, August 28
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
Mersen AJT40 Fuse - Class J Time Delay
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
Reliable Protection
Mersen AJT40 fuses provide superior time delay protection, safeguarding equipment against overloads while ensuring operational continuity and reliability in diverse applications.
Convenient Packaging
Sold in a 10-pack, the Mersen AJT40 offers convenience and value, ensuring you always have backup fuses on hand for quick replacements and maintaining system efficiency.
High Quality
Crafted with industry-leading materials, these fuses ensure exceptional performance and durability, meeting high standards in safety and reliability for commercial and industrial use.
Product Details
- Mersen AJT40 Fuse, Class J Time Delay, 10-Pack
- Time Delay Characteristics: Class J, 600 Vac/500 Vdc, 40 Ampere
- Interrupting Rating: 200 Kiloampere (Ac), 100 Kiloampere (Dc)
- Ferrule Terminal, Diameter: 1-1/16 Inch
- Length: 2-3/8 Inch
- Approvals: UL 198L, UL 248-8, CSA C22.2
| Brand | Mersen |
| Voltage | 600 Volts |
| Material | butyl, Polybutylene terephthalate |
| Specification Met | CSA, UL |
| Mounting Type | Surface Mount |
Who Should Buy?
-
Industrial Users
Ideal for industrial applications where equipment requires time delay fuses to handle inrush currents effectively.
-
HVAC Technicians
Perfect for HVAC systems needing reliable overcurrent protection with time delay to accommodate start-up loads.
-
Electrical Contractors
Great for contractors looking for dependable fuses for installations and repairs in commercial and residential settings.
-
Lightweight Projects
Not suitable for small or lightweight electrical projects that do not require robust overcurrent protection.
Product Description
Mersen AJT40 Fuse, Class J Time Delay, 10-Pack
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the Mersen AJT40 Fuse used for?
Answer: The Mersen AJT40 Fuse is designed to provide overload protection for electrical circuits in industrial, commercial, and residential applications. Its class J rating allows it to effectively interrupt and protect against short circuits and overcurrent situations. This is especially useful in motor branch circuits and transformer protection. Ensuring that your circuits have robust overload protection reduces the risk of equipment damage and system failures, making it a critical component in both new installations and replacements. -
Question:
What is the significance of the time delay feature in the Mersen AJT40 Fuse?
Answer: The time delay feature in the Mersen AJT40 Fuse allows it to withstand temporary overloads, such as inrush currents when motors start. This characteristic ensures that the fuse does not blow immediately during these brief surges, preventing unnecessary disruptions in operation. It's crucial for applications involving motors or transformers, where brief spikes in current are common. Thus, this fuse provides necessary protection without compromising on performance during routine operations or startups. -
Question:
Can I use Mersen AJT40 Fuses in outdoor settings?
Answer: While the Mersen AJT40 Fuse is designed for indoor use within equipment enclosures, specific applications may allow for outdoor use if appropriate measures are taken. It is essential to ensure that the fuse is housed in a suitable enclosure that protects it from environmental factors like moisture and dust. Utilizing these fuses in outdoor settings without proper protection may lead to premature failure. Always refer to local electrical codes and manufacturer guidelines for best practices to ensure safe usage. -
Question:
How do I know when to replace my Mersen AJT40 Fuse?
Answer: You should replace your Mersen AJT40 Fuse when it shows visible signs of blowing, such as a melted or broken element within the fuse body. In addition, if you experience frequent circuit interruptions despite fuse replacements, it may indicate an underlying issue in the circuit or system. Regularly inspecting and testing circuits can help to identify when a fuse needs to be replaced, which saves you from potential electrical hazards and ensures the continuous operation of your electrical system. -
Question:
What are the benefits of purchasing the Mersen AJT40 Fuse in a 10-pack?
Answer: Buying the Mersen AJT40 Fuse in a 10-pack offers significant benefits including cost savings and convenience. Purchasing in bulk provides a better value per fuse, lowering the overall expense for your projects. Additionally, having multiple fuses on hand ensures you have spares available for quick replacements, minimizing downtime. This is particularly advantageous for electricians or businesses that handle regular electrical maintenance or repairs, allowing for efficient workflow and continuity. -
Question:
Is the Mersen AJT40 Fuse suitable for residential applications?
Answer: Yes, the Mersen AJT40 Fuse is suitable for various residential applications, especially in areas requiring reliable overload protection for appliances, HVAC systems, and circuit panel use. Its time delay capability makes it perfect for protecting household motors and equipment without failure during startup surges. Homeowners and electricians alike appreciate this fuse for its flexibility in protecting electrical systems while promoting safety and efficiency within the home. -
Question:
What specifications should I consider when selecting the Mersen AJT40 Fuse?
Answer: When selecting the Mersen AJT40 Fuse, it's crucial to consider parameters such as voltage rating, current rating, and type of application. The AJT40 typically has a rating of 40A with a voltage rating suitable for a variety of industrial applications. Understanding your specific system’s requirements can aid in selecting the correct fuse for effective overload and short-circuit protection. Always consult the device specifications, and ensure you match the fuse ratings with your equipment for optimal performance. -
Question:
What makes the Mersen AJT40 Fuse a trusted choice among electricians?
Answer: The Mersen AJT40 Fuse is a trusted choice among electricians due to its high reliability, safety features, and performance record. Known for its robust construction and effectiveness in handling overloads, it has become a staple in industrial and commercial applications. Electricians prefer this fuse as it minimizes risks associated with equipment failure, thereby promoting safer working conditions. Its reputation for quality ensures that professionals can confidently use it in a wide range of electrical systems. -
Question:
How do I install the Mersen AJT40 Fuse correctly?
Answer: To install the Mersen AJT40 Fuse properly, first, ensure the power is turned off to the circuit before handling the fuse. Locate the fuse holder or box, remove the old fuse if present, and insert the new fuse securely into the designated slot. Double-check that the fuse is the correct type and rating for your application. After installation, restore power and test the circuit to confirm that it operates correctly. Proper installation prevents electrical hazards and optimizes safety during usage. -
Question:
Where can I buy the Mersen AJT40 Fuse, Class J Time Delay, 10-Pack?
Answer: You can buy the Mersen AJT40 Fuse, Class J Time Delay, 10-Pack at Ubuy in Uzbekistan. Ubuy offers a reliable platform for purchasing high-quality electrical components including fuses. By ordering from Ubuy, you'll find a range of options along with easy navigation through their site, making it straightforward to acquire the essential parts you need for your electrical projects.
Mersen Cartridge Fuses Editorial Review
No editorial reviews found
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
- Reliable time delay performance
- High-quality construction
- Easy to install
- Works well in various applications
- Affordable for a 10-pack
Cons
- May be slightly larger than expected.
Platform Trust & Buyer Confidence
MA
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
CK
Chitra
Verified buyer
“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
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“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
SJ
SAO JOHN
Verified buyer
“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
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
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.
UZS 5602995
Order now and get it around Friday, August 28
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.