--- product_id: 3025491 title: "Bussmann Series FRN-R 50 Amp Fuse, 250 Vac and IR 200 kA /125 Vdc and IR 20 kA, Retail Pack - 2 Pieces" brand: "bussmann" price: "VT6974" currency: VUV in_stock: true reviews_count: 8 category: "Bussmann" url: https://www.desertcart.vu/products/3025491-bussmann-series-frn-r-50-amp-fuse-250-vac-ir store_origin: VU region: Vanuatu --- # 50 Amp max current 250 Vac voltage rating 200 kA interrupting rating Bussmann Series FRN-R 50 Amp Fuse, 250 Vac and IR 200 kA /125 Vdc and IR 20 kA, Retail Pack - 2 Pieces **Brand:** bussmann **Price:** VT6974 **Availability:** βœ… In Stock ## Summary > πŸ› οΈ Power up your protection game with Bussmann’s heavy-duty fuse – because your motors deserve the best! ## Quick Answers - **What is this?** Bussmann Series FRN-R 50 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?** VT6974 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/3025491-bussmann-series-frn-r-50-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 - β€’ **High Fault Interruption:** Withstands up to 200,000 amps short-circuit current for ultimate safety and durability. - β€’ **Versatile Compatibility:** Fits Class H, K, or R fuse blocks with groove/notch design for seamless integration. - β€’ **Reliable Motor Protection:** Dual-element time-delay design shields motors from burnout and overloads without nuisance trips. - β€’ **Surge & Overload Resilience:** Handles temporary motor surges and overloads with a 10-second delay at 500% rated current. - β€’ **Energy Efficient & UL Listed:** Certified Class RK5 fuse ensures top-tier performance and compliance for professional-grade installations. ## Overview The Bussmann Series FRN-R 50 Amp Fuse is a UL-listed, dual-element, time-delay cartridge fuse designed for superior motor and panel protection. Rated for 250 Vac and capable of interrupting fault currents up to 200 kA, it prevents motor burnout from overloads and single-phasing while allowing startup surges. Its versatile design fits multiple fuse blocks, making it a trusted choice for industrial, commercial, and residential applications. ## Description Product Description Eaton Bussmann series advanced protection, energy efficient FRN-R Class RK5 dual element, current-limiting, time-delay fuses with optional open fuse indication on select ratings. Time-delay – 10 seconds (minimum) at 500% of rated current (8 seconds for 1⁄10-30A sizes). 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: Works for AC units - Changed my bad fuse with this one for my AC unit and it worked perfectly. My advice is to search online if this one is compatible with your unit and if so go ahead and get it. Get it quickly and saved me a lot of money paying someone to do it for me. Review: Got the heat pump working again. - Worked to get my heat pump back operational. Fuse block. ## 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. - 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 | B00004WA2Z | | Best Sellers Rank | #64,517 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #91 in Cartridge Fuses | | Brand Name | Bussmann | | Color | No Color | | Customer Reviews | 4.7 4.7 out of 5 stars (272) | | Global Trade Identification Number | 00051712112086 | | Included Components | 2 Fuses | | Item Dimensions | 5.5 x 2.75 x 0.81 inches | | Item Type Name | Bussmann BP/FRN-R-50 50 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 | 50 Amps | | Model | BP/FRN-R-50 | | Mounting Type | Surface Mount | | Specification Met | CE, CSA, UL | | UPC | 051712112086 | | Unit Count | 1.0 Count | | Voltage | 250 Volts | | Warranty Description | 1 year | ## Product Details - **AC Adapter Current:** 50 Amps - **Brand:** Bussmann - **Item dimensions L x W x H:** 5.5 x 2.75 x 0.81 inches - **Material:** Metal - **Voltage:** 250 Volts ## Images ![Bussmann Series FRN-R 50 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/71zg3z89M-L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works for AC units *by A***T on October 1, 2025* Changed my bad fuse with this one for my AC unit and it worked perfectly. My advice is to search online if this one is compatible with your unit and if so go ahead and get it. Get it quickly and saved me a lot of money paying someone to do it for me. ### ⭐⭐⭐⭐⭐ Got the heat pump working again. *by S***2 on October 21, 2025* Worked to get my heat pump back operational. Fuse block. ### ⭐⭐⭐⭐⭐ Seems to work for my air conditioner fuse box. *by B***N on January 10, 2026* Worked for my air conditioner disconnect. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/3025491-bussmann-series-frn-r-50-amp-fuse-250-vac-ir](https://www.desertcart.vu/products/3025491-bussmann-series-frn-r-50-amp-fuse-250-vac-ir) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-16*