---
product_id: 2749650
title: "Bussmann Series FRN-R 40 Amp Fuse, 250 Vac and IR 200 kA /125 Vdc and IR 20 kA, Retail Pack - 2 Pieces"
brand: "bussmann"
price: "R735"
currency: ZAR
in_stock: true
category: "Bussmann"
url: https://www.desertcart.co.za/products/2749650-bussmann-series-frn-r-40-amp-fuse-250-vac-ir
store_origin: ZA
region: South Africa
---

# Dual-element time-delay tech 40A heavy-duty current rating 200kA interrupt rating for ultimate protection Bussmann Series FRN-R 40 Amp Fuse, 250 Vac and IR 200 kA /125 Vdc and IR 20 kA, Retail Pack - 2 Pieces

**Brand:** bussmann
**Price:** R735
**Availability:** ✅ In Stock

## Summary

> 🛠️ Fuse your gear with the ultimate power shield—because downtime is so last decade!

## Quick Answers

- **What is this?** Bussmann Series FRN-R 40 Amp Fuse, 250 Vac and IR 200 kA /125 Vdc and IR 20 kA, Retail Pack - 2 Pieces by bussmann
- **How much does it cost?** R735 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/2749650-bussmann-series-frn-r-40-amp-fuse-250-vac-ir)

## Best For

- bussmann enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Fit:** Compatible with Class H, K, and R fuse blocks for seamless integration
- • **Rapid Response:** Blows in as little as 0.004 seconds on short-circuits to prevent damage
- • **Dual-Pack Value:** Two premium fuses per pack—double the protection, double the peace of mind
- • **Surge-Ready Design:** Handles startup surges up to 5x rated current for smooth motor kicks
- • **Powerhouse Protection:** Safeguards motors from burnout and overload with precision time-delay action

## Overview

The Bussmann Series FRN-R 40 Amp Fuse is a UL-listed, dual-element time-delay cartridge fuse designed for robust motor and main panel protection. Rated for 250Vac with a 200kA interrupt rating, it expertly balances surge tolerance and rapid short-circuit response. Ideal for commercial and industrial applications, this 2-pack ensures reliable overload, ground fault, and short-circuit defense, minimizing motor burnout and blackout risks.

## Description

Product Description 2 Pack, 40A, Type FRN-R Cartridge Fuse, Fusetron Time Delay, 250V, Dimensions: 2.375\"L x 1.375\"W x 0.50\"H. From the Manufacturer Heavy duty time-delay fuse used in motor protection. When sized correctly, it helps protect motors from burnout caused by overloads or single-phasing. The time-delay feature allows the initial startup current surge for typical motors to pass, but opens prior to motor burnout when longer, dangerous overloads are present. In addition, the dual-element design opens in as little as 0.004 second if the fuse experiences short-circuit conditions. UL Listed Class R (IR: 200kA). Groove in end cap or notch in knife blade permit the fuse to be used in Class H, Class K or Class R fuse blocks. Cartridge fuses are used to protect motors and branch circuits where higher amps or volt ratings are required. They are available in a wide variety of sizes, amp and volt ratings up to 600Vac and 600 amps. Cartridge fuses are used extensively in commercial, industrial and agricultural applications as well as residential fuse panels, air conditioning, pumps, appliances and other equipment. Cartridge fuses are available in two types. General Purpose fuses have no time-delay and protect fuse panels, appliances and branch circuits. Heavy- Duty fuses have a time-delay feature, allowing momentary motor startups. Both are available in 250Vac and 600Vac versions with catalog symbol and amp rating stamped on the knife blade or end cap.

## Features

- Heavy-duty, dual element, time-delay cartridge fuse for motor and main panel protection
- Helps protect motors against burnout from single-phasing on three-phase systems, and overloads
- Dual-element fuses can be applied in circuits subject to temporary motor overloads and surge currents to provide both high performance short-circuit and overload protection
- Use general purpose NON fuses for lighting or electric heating circuits
- This product includes 2 fuses, the individual fuse size is 3" long by 0.81" diameter
- Provides motor overload, ground fault and short-circuit protection
- Helps protect motors against burnout from overloads and from single phasing on three phase systems
- Simplifies and improves blackout prevention (selective coordination)
- Can be applied in circuits subject to temporary motor overloads and surge currents to provide high performance short-circuit and overload protection
- Protects against low level overcurrent of overloads and will hold on inrush current 5 times greater than the amp rating of fuse for a min of 8 sec

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00004WA2Y |
| Best Sellers Rank | #45,467 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #65 in Cartridge Fuses |
| Brand Name | Bussmann |
| Color | No Color |
| Current Rating | 40 A |
| Customer Reviews | 4.7 4.7 out of 5 stars (315) |
| Global Trade Identification Number | 00051712112062 |
| Included Components | 2 Fuses |
| Item Dimensions | 3 x 0.81 x 0.81 inches |
| Item Type Name | Bussmann BP/FRN-R-40 40 Amp Fusetron Dual Element Time-Delay Current Limiting Class RK5 Fuse, 250V Carded UL Listed, 2-Pack |
| Item Weight | 3.2 ounces |
| Manufacturer | Bussmann |
| Material Type | Metal |
| Maximum Current | 40 A |
| Model | BP/FRN-R-40 |
| Mounting Type | Surface Mount |
| Number of Items | 1 |
| Part Number | BP-FRN-R-40 |
| Specification Met | CE, CSA, UL |
| UPC | 051712112062 |
| Unit Count | 1 Count |
| Voltage | 120 volts |
| Warranty Description | Warranty |

## Product Details

- **AC Adapter Current:** 40 A
- **Brand:** Bussmann
- **Item dimensions L x W x H:** 3 x 0.81 x 0.81 inches
- **Material:** Metal
- **Voltage:** 120 volts

## Images

![Bussmann Series FRN-R 40 Amp Fuse, 250 Vac and IR 200 kA /125 Vdc and IR 20 kA, Retail Pack - 2 Pieces - Image 1](https://m.media-amazon.com/images/I/61VQUXwMbeL.jpg)

## Available Options

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

## Frequently Bought Together

- Bussmann BP/FRN-R-40 40 Amp Fusetron Dual Element Time-Delay Current Limiting Class RK5 Fuse, 250V Carded UL Listed, 2-Pack, Pack of 1, No Color
- Bussmann BP/FRN-R-60 60 Amp Fusetron Dual Element Time-Delay Current Limiting Class RK5 Fuse, 250V Carded UL Listed, 2-Pack
- Bussmann BP/FRN-R-50 50 Amp Fusetron Dual Element Time-Delay Current Limiting Class RK5 Fuse, 250V Carded UL Listed, 2-Pack, Pack of 1, No Color

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-10-25*