---
product_id: 166093450
title: "BOJACK 5x20 mm 4 A 4 amp 125 V 125 Volt 0.2x0.78 Inch F4AL125V Fast-Blow Glass Fuses (Pack of 10)"
brand: "bojack"
price: "S$11"
currency: SGD
in_stock: true
category: "Bojack"
url: https://www.desertcart.sg/products/166093450-bojack-5x20-mm-4-a-4-amp-125-v-125
store_origin: SG
region: Singapore
---

# 4A Fast-Blow Current 5x20 mm Compact Size 125V Voltage Rating BOJACK 5x20 mm 4 A 4 amp 125 V 125 Volt 0.2x0.78 Inch F4AL125V Fast-Blow Glass Fuses (Pack of 10)

**Brand:** bojack
**Price:** S$11
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay powered, stay protected — fuse your fears away!

## Quick Answers

- **What is this?** BOJACK 5x20 mm 4 A 4 amp 125 V 125 Volt 0.2x0.78 Inch F4AL125V Fast-Blow Glass Fuses (Pack of 10) by bojack
- **How much does it cost?** S$11 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/166093450-bojack-5x20-mm-4-a-4-amp-125-v-125)

## Best For

- bojack enthusiasts

## Why This Product

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

## Key Features

- • **Compact 5x20 mm Design:** Fits seamlessly into standard fuse holders without bulk
- • **Convenient 10-Pack Storage:** Organized plastic case keeps your fuses ready and accessible
- • **Durable Glass Construction:** Transparent casing for easy fuse status check and long-lasting performance
- • **Reliable 4 Amp Current Rating:** Perfectly calibrated for moderate power devices and appliances
- • **Precision Fast-Blow Protection:** Instant circuit interruption to safeguard your valuable electronics

## Overview

The BOJACK 5x20 mm Fast-Blow Glass Fuse delivers reliable 4A current protection at 125V, designed to instantly cut off abnormal currents and prevent circuit damage. Packaged in a handy 10-piece set with durable glass casing, these fuses are essential for maintaining safe and efficient electrical systems in your home or office.

## Description

BOJACK 10 Pcs High Quality Fast-Blow Glass Fuse Fuse Dimension:5x20 mm/0.2x0.78 Inch Fuse Current: 4A Fuse Voltage: 125V The role of the fuse：When a circuit malfunctions or is abnormal, the current is constantly rising, and the increased current may damage some important components or valuable components in the circuit, or it may burn the circuit or even cause a fire.The fuse will cut off the current when the current abnormally rises to a certain height and a certain time, thereby protecting the safe operation of the circuit.

## Features

- BOJACK 10 Pcs High Quality Fast-Blow Glass Fuse
- Fuse Dimension: 5x20 mm/0.2x0.78 Inch
- Fuse Current: 4A
- Fuse Voltage: 125V
- Package Quantity: 10 pcs Packed in a plastic storage case

## Technical Specifications

| Specification | Value |
|---------------|-------|
| AC Adapter Current | 4 A |
| ASIN | B07WTVGSCF |
| Best Sellers Rank | #5,676 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4 in Cartridge Fuses |
| Brand | BOJACK |
| Brand Name | BOJACK |
| Current Rating | 4 A |
| Customer Reviews | 4.4 out of 5 stars 174 Reviews |
| Manufacturer | BOJACK |
| Material | Glass |
| Material Type | Glass |
| Maximum Current | 4 A |
| Model | BJ-GFB-4A |
| Mounting Type | Through-Hole Mount |
| Number of Items | 10 |
| Part Number | BJ-GFB |
| UPC | 769390171508 |
| Unit Count | 10 Count |
| Voltage | 125 volts |

## Product Details

- **AC Adapter Current:** 4 Amps
- **Brand:** BOJACK
- **Material:** Glass
- **Mounting Type:** Through-Hole Mount
- **Voltage:** 125 Volts

## Images

![BOJACK 5x20 mm 4 A 4 amp 125 V 125 Volt 0.2x0.78 Inch F4AL125V Fast-Blow Glass Fuses (Pack of 10) - Image 1](https://m.media-amazon.com/images/I/71O6HNrJAXL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Mine calls for a 125V 5 Amp but when I measure it is exactly 19 mm long x 5 mm wide, not 20 mm long?**
A: Sorry, these do measure exactly 20mm long...

## Frequently Bought Together

- BOJACK 5x20 mm 4 A 4 amp 125 V 125 Volt 0.2x0.78 Inch F4AL125V Fast-Blow Glass Fuses (Pack of 10)
- BOJACK 6x30mm 4 A 4 amp 250 V 0.24x1.18 Inch Volt F4AL250V Fast-Blow Glass Fuses(Pack of 18 Pcs)
- Blue Sea Systems 5021 Panel Mount AGC/MDL Fuse Holder, Black

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**Shop now:** [https://www.desertcart.sg/products/166093450-bojack-5x20-mm-4-a-4-amp-125-v-125](https://www.desertcart.sg/products/166093450-bojack-5x20-mm-4-a-4-amp-125-v-125)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-10-15*