---
product_id: 513915570
title: "Mersen A4J40 600V 40A Class J Fuse, 10-Pack"
brand: "mersen"
price: "C$41018"
currency: NIO
in_stock: true
url: https://www.desertcart.ni/products/513915570-mersen-a4j40-600v-40a-class-j-fuse-10-pack
store_origin: NI
region: Nicaragua
---

# Fast Acting 40A Capacity 600V Power Mersen A4J40 600V 40A Class J Fuse, 10-Pack

**Brand:** mersen
**Price:** C$41018
**Availability:** ✅ In Stock

## Summary

> ⚡ Power Up Your Safety with Mersen's Class J Fuses!

## Quick Answers

- **What is this?** Mersen A4J40 600V 40A Class J Fuse, 10-Pack by mersen
- **How much does it cost?** C$41018 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/513915570-mersen-a4j40-600v-40a-class-j-fuse-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

- • **Trusted Quality:** Manufactured by Mersen, meeting CSA specifications.
- • **Unmatched Speed:** Experience rapid response with fast-acting characteristics.
- • **Compact & Lightweight:** Weighing only 0.16 ounces, perfect for efficient installations.
- • **High Voltage Compatibility:** Designed for 600V AC and 300V DC applications.
- • **Robust Interrupting Rating:** Handles up to 200kA AC and 20kA DC for ultimate safety.

## Overview

The Mersen A4J40 Class J Fuse is a high-performance electrical component designed for fast-acting protection in various applications. With a voltage rating of 600V and a current capacity of 40A, this fuse ensures reliable operation and safety, boasting an impressive interrupting rating of 200kA AC and 20kA DC. Packaged in a convenient 10-pack, these fuses are lightweight and easy to install, making them an essential choice for professionals seeking quality and efficiency.

## Description

From the Manufacturer          Mersen A4J40 600V 40A Class J Fuse, UL Power Fuse, Class J, Fast Acting Characteristics, 600 Vac/300 Vdc, 40 Ampere, Interrupting Rating 200 Kiloampere (Ac), 20 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[R] Brand, A4J Model

## Features

- Class J
- Fast Acting Characteristics
- 600 Vac/300 Vdc
- 40 Ampere
- Interrupting Rating 200 Kiloampere (Ac), 20 Kiloampere (Dc)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| AC Adapter Current | 40 Amps |
| Brand | Mersen |
| Voltage | 600 Volts |
| Material | Polycarbonate |
| Specification Met | CSA |
| Mounting Type | Through-Hole Mount |
| Global Trade Identification Number | 30782001960224 |
| Manufacturer | Schaedler Yesco Distribution, Inc. |
| Part Number | A4J40 |
| Item Weight | 0.16 ounces |
| Package Dimensions | 5.8 x 2.6 x 2.3 inches |
| Item model number | A4J40 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **AC Adapter Current:** 40 Amps
- **Brand:** Mersen
- **Voltage:** 600 Volts
- **Material:** Polycarbonate
- **Specification Met:** CSA

## Images

![Mersen A4J40 600V 40A Class J Fuse, 10-Pack - Image 1](https://m.media-amazon.com/images/I/41j3ji+54-L.jpg)

---

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**Shop now:** [https://www.desertcart.ni/products/513915570-mersen-a4j40-600v-40a-class-j-fuse-10-pack](https://www.desertcart.ni/products/513915570-mersen-a4j40-600v-40a-class-j-fuse-10-pack)

---

*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-03-02*