--- product_id: 21855982 title: "Bussmann 100A FRN-R Heavy-Duty Time Delay Fuse - 1 Each" brand: "bussmann" price: "₨18188" currency: LKR in_stock: true reviews_count: 9 category: "Bussmann" url: https://www.desertcart.lk/products/21855982-bussmann-100a-frn-r-heavy-duty-time-delay-fuse-1 store_origin: LK region: Sri Lanka --- # Time-delay for motor startup surge 100A heavy-duty current rating 200kA interrupt rating UL Listed Bussmann 100A FRN-R Heavy-Duty Time Delay Fuse - 1 Each **Brand:** bussmann **Price:** ₨18188 **Availability:** ✅ In Stock ## Summary > ⚡ Protect your power like a pro—fuse in the future today! ## Quick Answers - **What is this?** Bussmann 100A FRN-R Heavy-Duty Time Delay Fuse - 1 Each by bussmann - **How much does it cost?** ₨18188 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/21855982-bussmann-100a-frn-r-heavy-duty-time-delay-fuse-1) ## 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 - • **Compact Powerhouse:** Sleek 1 x 5.8 inch size packs 100 amps at 250 volts, perfect for commercial and residential use. - • **Surge-Proof Startup:** Time-delay design lets motors roar to life without tripping prematurely. - • **Rapid Response Safety:** Dual-element fuse reacts in as little as 0.004 seconds to short circuits—instant protection. - • **Universal Compatibility:** Fits Class H, K, and R fuse blocks with groove/notch design for versatile installation. - • **Industrial-Grade Durability:** UL Listed Class R with 200kA interrupt rating ensures top-tier motor burnout defense. ## Overview The Bussmann 100A FRN-R Heavy-Duty Time Delay Fuse is a UL Listed Class R fuse designed to protect motors from overload and burnout. Featuring a dual-element time-delay mechanism, it allows normal motor startup surges while quickly interrupting dangerous overloads and short circuits with a 200kA interrupt rating. Compatible with Class H, K, and R fuse blocks, this compact 250V, 100A fuse is ideal for commercial, industrial, agricultural, and residential applications requiring reliable motor and circuit protection. ## Description Product Description 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. 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. Review: fuse - works good Review: fuse - good fit ## Features - Made in Mexico ## Technical Specifications | Specification | Value | |---------------|-------| | AC Adapter Current | 100 A | | ASIN | B000VZKE9G | | Best Sellers Rank | #293,234 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #599 in Cartridge Fuses | | Brand | Bussmann | | Brand Name | Bussmann | | Color | No Color | | Current Rating | 100 A | | Customer Reviews | 4.9 out of 5 stars 70 Reviews | | Global Trade Identification Number | 00051712101851 | | Included Components | Fuse | | Item Dimensions | 1 x 5.8 x 1.05 inches | | Item Type Name | Bussmann FRN-R-100 100 Amp Fusetron Dual Element Time-Delay Current Limiting Fuse Class RK5, 250V UL Listed | | Item Weight | 4.96 ounces | | Item dimensions L x W x H | 1 x 5.8 x 1.05 inches | | Manufacturer | Bussmann | | Material | Plastic | | Material Type | Plastic | | Maximum Current | 100 A | | Model | FRN-R-100 | | Mounting Type | Through-Hole Mount | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | FRN-R-100 | | Specification Met | UL | | UPC | 051712101851 082901310761 | | Unit Count | 1 Count | | Voltage | 250 volts | | Warranty Description | Warranty | ## Product Details - **AC Adapter Current:** 100 A - **Brand:** Bussmann - **Item dimensions L x W x H:** 1 x 5.8 x 1.05 inches - **Material:** Plastic - **Voltage:** 250 volts ## Images ![Bussmann 100A FRN-R Heavy-Duty Time Delay Fuse - 1 Each - Image 1](https://m.media-amazon.com/images/I/41nUkpwdoLL.jpg) ![Bussmann 100A FRN-R Heavy-Duty Time Delay Fuse - 1 Each - Image 2](https://m.media-amazon.com/images/I/310pY4kRJfL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ fuse *by C***R on March 26, 2026* works good ### ⭐⭐⭐⭐⭐ fuse *by M***L on October 18, 2025* good fit ### ⭐⭐⭐⭐⭐ Great Fuses *by J***R on August 22, 2023* Item as described. Arrived promptly. ## Frequently Bought Together - Bussmann FRN-R-100 100 Amp Fusetron Dual Element Time-Delay Current Limiting Fuse Class RK5, 250V UL Listed - Bussmann, Size Bussman BP/FRN-R-100 100 Amp T/D Fuse - SIEMENS GF323NR 100 Amp, 3 Pole, 240-Volt, 4 Wire, Fused, General Duty, Outdoor Rated --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.lk/products/21855982-bussmann-100a-frn-r-heavy-duty-time-delay-fuse-1](https://www.desertcart.lk/products/21855982-bussmann-100a-frn-r-heavy-duty-time-delay-fuse-1) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-10-18*