---
product_id: 22185435
title: "Fuse,Class RK5,50A,FRS-R Series"
brand: "bussmann"
price: "KD 8.67"
currency: KWD
in_stock: true
url: https://www.desertcart.com.kw/products/22185435-fuse-class-rk5-50a-frs-r-series
store_origin: KW
region: Kuwait
---

# Time-delay for motor startup surge 200kA interrupt rating Dual-element fast short-circuit response Fuse,Class RK5,50A,FRS-R Series

**Brand:** bussmann
**Price:** KD 8.67
**Availability:** ✅ In Stock

## Summary

> ⚡ Protect your power like a pro — fuse in, burnout out!

## Quick Answers

- **What is this?** Fuse,Class RK5,50A,FRS-R Series by bussmann
- **How much does it cost?** KD 8.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/22185435-fuse-class-rk5-50a-frs-r-series)

## 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 Compatibility:** Fits multiple fuse block styles (Class H, K, R) and matches top brands like Bussmann and Littelfuse for seamless integration.
- • **Built for Heavy-Duty Use:** Fiberglass body and robust construction designed for industrial, commercial, and agricultural motor protection applications.
- • **Smart Time-Delay Technology:** Allows motor startup surges to pass without nuisance trips, preventing downtime and costly replacements.
- • **Rapid Short-Circuit Response:** Dual-element design reacts in as little as 0.004 seconds to dangerous short circuits, safeguarding your equipment instantly.
- • **Unmatched Safety Performance:** Withstands up to 200kA interrupt rating at 600V AC, ensuring ultimate protection against electrical faults.

## Overview

The Eaton Bussmann Fuse Class RK5 50A FRS-R Series is a heavy-duty, time-delay cylindrical fuse designed for motor protection. Rated for 600V AC and 250V DC with a 200kA interrupt rating, it allows startup surges while preventing motor burnout from prolonged overloads. Its dual-element design ensures ultra-fast response to short circuits, making it ideal for industrial and commercial applications. Compatible with multiple fuse block styles and equivalent to leading brands, it offers reliable, versatile protection in a durable fiberglass body.

## Description

Product Description               Fuse, 50 A, 600V AC, 250V DC, Class RK5, FRS-R Series, Nonindicating, Time Delay, Body Style Cylindrical, Fits Fuse Block Style Rejection, Interrupt Rating 200kA at 600V AC, 20kA at 250V DC, Fuse Size 5-1/2 in L x 1-1/16 in dia, Length 5 1/2 in, Diameter 1 1/16 in, Equivalent Brand and Series Bussmann FRS-R, Edison ECSR, Littelfuse FLSR, Mersen TRS-R, Equivalent Series ECSR, FLSR, FRS-R, TRS-R, Compatible Fuse Block Series 1BR, R600, Body Material Fiberglass, Dual Element                  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

- Fuses
- Manufacturer: Eaton Bussmann
- Country of Manufacturer: Mexico

## Product Details

- **AC Adapter Current:** 50 Amps
- **Brand:** Bussmann
- **Voltage:** 600 Volts
- **Item dimensions L x W x H:** 7.09 x 6.3 x 8.27 inches
- **Material:** Fiberglass

## Images

![Fuse,Class RK5,50A,FRS-R Series - Image 1](https://m.media-amazon.com/images/I/715CyI8tDrL.jpg)
![Fuse,Class RK5,50A,FRS-R Series - Image 2](https://m.media-amazon.com/images/I/31ucbnvp97L.jpg)

## Frequently Bought Together

- Bussmann FRS-R-50 Tron Frs-R Energy Efficient Non-Indicating Time Delay Fuse, 600 Vac/250 Vdc, 50 Amp
- Siemens HF362 60-Amp 3 Pole 600-volt 3 Wire Fused Heavy Duty Safety Switches
- Bussmann FRS-R-60 Tron Frs-R Energy Efficient Non-Indicating Time Delay Fuse, 600 Vac/250 Vdc, 60 Amp

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-02-13*