---
product_id: 43197113
title: "Mersen AJT40 Fuse, Class J Time Delay, 10-Pack"
brand: "mersen"
price: "€ 487.73"
currency: EUR
in_stock: true
category: "Mersen"
url: https://www.desertcart.it/products/43197113-mersen-ajt40-fuse-class-j-time-delay-10-pack
store_origin: IT
region: Italy
---

# Time delay for surge protection 40A high current capacity 200kA AC interrupt rating Mersen AJT40 Fuse, Class J Time Delay, 10-Pack

**Brand:** mersen
**Price:** € 487.73
**Availability:** ✅ In Stock

## Summary

> ⚡ Fuse your circuits with confidence — power meets precision!

## Quick Answers

- **What is this?** Mersen AJT40 Fuse, Class J Time Delay, 10-Pack by mersen
- **How much does it cost?** € 487.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/43197113-mersen-ajt40-fuse-class-j-time-delay-10-pack)

## Best For

- mersen enthusiasts

## Why This Product

- Trusted mersen brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Time Delay:** Protects sensitive equipment from transient surges
- • **Compact & Durable Design:** Space-saving 2-3/8 inch length with robust materials
- • **Certified Safety Assurance:** UL and CSA approvals for trusted reliability
- • **Ultra-High Interrupt Rating:** Safeguards circuits with 200kA AC and 100kA DC ratings
- • **Power-Packed 40 Amp Capacity:** Handles demanding electrical loads with ease

## Overview

The Mersen AJT40 is a Class J time delay fuse designed for high-performance circuit protection. Rated at 40 amps and 600 volts, it features an impressive interrupting capacity of 200kA AC and 100kA DC, ensuring maximum safety and reliability. UL and CSA certified, this 10-pack fuse set combines compact durability with precision time delay characteristics, ideal for professional-grade electrical systems.

## Description

From the Manufacturer Mersen AJT40 Fuse, Class J Time Delay (, UL Power Fuse, Class J, 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, Approval Ul 198L, Ul 248-8, Csa C22.2, Amp-Trap 2000[R] Brand

## Features

- Class J
- Time Delay Characteristics
- 600 Vac/500 Vdc
- 40 Ampere
- Interrupting Rating 200 Kiloampere (Ac), 100 Kiloampere (Dc)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001VXS5TS |
| Best Sellers Rank | #1,116,683 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #5,161 in Cartridge Fuses |
| Brand Name | Mersen |
| Color | silver |
| Current Rating | 40 Amps |
| Customer Reviews | 4.4 4.4 out of 5 stars (3) |
| Global Trade Identification Number | 30782001962327 |
| Item Weight | 0.18 Pounds |
| Manufacturer | Schaedler Yesco Distribution, Inc. |
| Material Type | butyl, Polybutylene terephthalate |
| Model | AJT40 |
| Mounting Type | Surface Mount |
| Part Number | AJT40 |
| Specification Met | CSA, UL |
| Unit Count | 10.0 Count |
| Voltage | 600 Volts |

## Product Details

- **Brand:** Mersen
- **Material:** butyl, Polybutylene terephthalate
- **Mounting Type:** Surface Mount
- **Specification Met:** CSA, UL
- **Voltage:** 600 Volts

## Images

![Mersen AJT40 Fuse, Class J Time Delay, 10-Pack - Image 1](https://m.media-amazon.com/images/I/41wkkyVhUbL.jpg)

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-06-18*