---
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: "$34.48"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/2749650-bussmann-series-frn-r-40-amp-fuse-250-vac-ir
store_origin: US
region: United States of America
---

# Time-delay for motor surge protection 40A heavy-duty current rating 200kA interrupt rating for ultimate safety 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:** $34.48
**Availability:** ✅ In Stock

## Summary

> 🛠️ Fuse your way to flawless motor protection — don’t get left in the dark!

## 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?** $34.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/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

- • **Smart Surge Handling:** Time-delay design lets startup surges pass without blowing
- • **Powerhouse Protection:** 40 Amp rating ensures robust motor and circuit defense
- • **Rapid Response Safety:** Dual-element fuse trips in 0.004 seconds on short circuits
- • **Versatile Compatibility:** Fits Class H, K, and R fuse blocks for flexible installation
- • **Industrial-Grade Reliability:** UL Listed with 200kA interrupt rating for maximum blackout prevention

## Overview

The Bussmann Series FRN-R 40 Amp Fuse is a heavy-duty, time-delay cartridge fuse designed to protect motors and circuits from overloads, short circuits, and ground faults. With a 40A rating, 250V capacity, and an impressive 200kA interrupt rating, it ensures rapid disconnection during faults while allowing normal motor startup surges. UL listed and compatible with multiple fuse block classes, this 2-pack fuse set is essential for industrial, commercial, and residential motor protection, preventing costly downtime and equipment damage.

## Description

Bussmann Series FRN-R 40 Amp Fuse, 250 Vac and IR 200 kA /125 Vdc and IR 20 kA, Retail Pack - 2 Pieces

## Features

- Quantity: 2 Pack
- 40A Type FRN-R Cartridge Fuse
- Fusetron Time Delay, 250V
- 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 |
|---------------|-------|
| AC Adapter Current | 40 Amps |
| Brand | Bussmann |
| Voltage | 120 Volts |
| Item dimensions L x W x H | 5.5 x 2.75 x 0.81 inches |
| Material | Plastic |
| Specification Met | CSA, CE, UL |
| Mounting Type | Surface Mount |
| UPC | 051712112062 |
| Global Trade Identification Number | 00051712112062 |
| Manufacturer | Bussmann |
| Color | No Color |
| Unit Count | 1.0 Count |
| Part Number | BP-FRN-R-40 |
| Item Weight | 3.2 ounces |
| Product Dimensions | 5.5 x 2.75 x 0.81 inches |
| Country of Origin | Mexico |
| Item model number | BP/FRN-R-40 |
| Is Discontinued By Manufacturer | No |
| Size | Pack of 1 |
| Item Package Quantity | 1 |
| Number Of Pieces | 2 |
| Included Components | 2 Fuses |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |

## Product Details

- **AC Adapter Current:** 40 Amps
- **Brand:** Bussmann
- **Voltage:** 120 Volts
- **Item dimensions L x W x H:** 5.5 x 2.75 x 0.81 inches
- **Material:** Plastic

## 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/71TdWS-8kVL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ AC is Working
*by M***E on July 16, 2025*

AC is working

### ⭐⭐⭐⭐⭐ Quality
*by A***R on March 31, 2025*

Just as stated

### ⭐⭐⭐⭐⭐ Life saver! Keep a set on hand during the summer!
*by J***N on December 18, 2013*

During the late summer months and early fall in our area, 110 degrees is normal and will on occasion get higher. We have a decent a/c system but the fuses end up needing replacing after days of running. First time our a/c went out about 6 years ago, it was 114 outside and a miserable 92 inside and we had a toddler and family from out of town staying with us. We learned it was the fuses not the a/c but spent lots of time looking for fuses at our local hardware stores which were naturally out of stock. Luckily we were able to find the one-time type which will worked in a pinch. Then I jumped on Amazon and found some of these bad boys! We keep an extra set on hand and anytime we have to replace them, I jump back on Amazon and order another set. We get a good price and have them delivered (free with amazon prime) in a couple of days.

## 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 United States of America*
*Store origin: US*
*Last updated: 2026-02-28*