--- product_id: 19531551 title: "Bussmann SL-20PK4 20 Amp Time Delay Loaded Link Rejection Base Plug Fuse, 125V UL Listed, 4-Pack" brand: "bussmann" price: "€ 25.74" currency: EUR in_stock: true reviews_count: 8 category: "Bussmann" url: https://www.desertcart.hr/products/19531551-bussmann-sl-20pk4-20-amp-time-delay-loaded-link-rejection store_origin: HR region: Croatia --- # Time-delay for motor surges 20 Amp current rating Rejection base prevents wrong fuse install Bussmann SL-20PK4 20 Amp Time Delay Loaded Link Rejection Base Plug Fuse, 125V UL Listed, 4-Pack **Brand:** bussmann **Price:** € 25.74 **Availability:** ✅ In Stock ## Summary > 🔌 Fuse your circuits with confidence — safety and smart power in one pack! ## Quick Answers - **What is this?** Bussmann SL-20PK4 20 Amp Time Delay Loaded Link Rejection Base Plug Fuse, 125V UL Listed, 4-Pack by bussmann - **How much does it cost?** € 25.74 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/19531551-bussmann-sl-20pk4-20-amp-time-delay-loaded-link-rejection) ## 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 Time-Delay ⏳:** Protects motors by withstanding startup surges without nuisance trips. - • **Surge-Proof Power ⚡:** Handles up to 20 amps with ease, perfect for residential motor circuits. - • **Safety-First Design 🔒:** Rejection base threads block higher amp fuses, ensuring circuit integrity. - • **Compact & Reliable Fit 🧩:** Threads seamlessly into SA adaptors for hassle-free installation. - • **UL Listed Quality Assurance ✅:** Certified for safety and performance, trusted by professionals. ## Overview The Bussmann SL-20PK4 is a UL-listed, 20 Amp time-delay rejection base plug fuse designed for residential and light-duty motor circuits. Its unique rejection base prevents incorrect fuse installation, while the time-delay feature protects motors from startup surges. Compact and reliable, it threads into SA adaptors and is ideal for kitchens, workshops, garages, and utility rooms, reducing downtime and maintenance costs. ## Description Product Description The Bussmann series SL-20PK4 is a pack of 4 time-delay, rejection base plug fuses. The SL plug fuses are ideal for residential motor circuits in kitchens, workshops, garages and utility rooms. Plug fuses thread into receptacles. Two types of threaded fuses are available: Edison base (brass) and rejection base (porcelain). The two are not interchangeable. TL and SL medium-duty fuses are regular duty fuses. T and S are heavy duty fuses for more demanding applications with high inrush currents. Plug fuses provide a compact and economical method to prevent electric motor damage, reduce downtime and lower maintenance costs by opening when an overload is present. When used for residential branch circuit protection, fuses are typically located in the main fuse panel. From the Manufacturer SL fuse for residential motor circuits in kitchens, workshops, garages, utility rooms or any circuit with motors, relays or solenoids. The rejection base threads prevent a larger amp fuse from being used. Example: A 30 amp fuse cannot be installed in a 20 amp receptacle because of the different sized threads. Medium-duty fuse. These fuses thread into fuse receptacles. Threaded fuse type: Rejection Base (porcelain threads). Not interchangeable with Edison Base (brass threads) type. Medium-duty (SL) category plug fuse. The medium-duty fuse (SL) has a time-delay feature for use on motor circuits. Plug fuses are rated for a maximum of 125Vac. SL three pack (PK3) version (blister pack). Plug fuses are often used in residential and industrial branch circuit and motor protection. Fuses are used to protect furnace blower motors, pumps, power tools, garage door openers, etc. Motor protection fuses are usually used in conjunction with branch circuit protection. The fuse is often located in a box cover unit. Plug fuses provide a compact and inexpensive method to prevent damage to electrical motors. They help reduce downtime and lower maintenance costs by opening the circuit when a dangerous overload is present. When used for residential branch circuit protection, fuses are typically located in the main fuse panel. Review: Reliable Genuine Bussmann Fuses — Perfect Fit and Great Quality - Excellent quality fuses. The Bussmann SL-20PK4 20 Amp time delay fuses arrived quickly, were securely packaged, and exactly as described. Genuine UL-listed product with solid build quality and reliable performance. Perfect fit and works as expected. Great value for a 4-pack. Highly recommend. Review: Fuse Box - Great product and exact match for the fuse box ## Features - ATTENTION: This fuse design works with a rejection base that prevents installing a higher amp fuse than the circuit was designed to handle. Be certain that the fuse you are replacing is an TYPE SL, 20A, Plug Fuse or it will not thread in to the base. - Has ability to withstand typical motor starting surges - Used in residential or light-duty motor circuits - These fuses thread into SA adaptors - The fuse size is 1.25" in diameter and 1.25" tall - Size Rejecting Plug Fuse - No-interchangeability prevents installing a higher amp fuse than the circuit was designed for - Use in residential or light-duty motor circuits - This fuse threads into SA adaptors ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000BPB0DA | | Best Sellers Rank | #42,546 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4 in Plug Fuses | | Brand Name | Bussmann | | Color | Standard | | Customer Reviews | 4.6 4.6 out of 5 stars (258) | | Global Trade Identification Number | 00051712418317 | | Included Components | SL-20PK4 | | Item Dimensions | 32.5 x 2.3 x 2.3 inches | | Item Type Name | Bussmann SL-20PK4 20 Amp Time Delay Loaded Link Rejection Base Plug Fuse, 125V UL Listed, 4-Pack | | Item Weight | 2.4 ounces | | Manufacturer | Bussmann | | Material Type | Plastic | | Maximum Current | 20 Amps | | Model | SL-20PK4 | | Mounting Type | Through-Hole Mount | | Specification Met | CE, UL | | UPC | 051712418317 | | Unit Count | 1.0 Count | | Voltage | 125 Volts | | Warranty Description | Warranty | ## Product Details - **AC Adapter Current:** 20 Amps - **Brand:** Bussmann - **Item dimensions L x W x H:** 32.5 x 2.3 x 2.3 inches - **Material:** Plastic - **Voltage:** 125 Volts ## Images ![Bussmann SL-20PK4 20 Amp Time Delay Loaded Link Rejection Base Plug Fuse, 125V UL Listed, 4-Pack - Image 1](https://m.media-amazon.com/images/I/71DXsxadw9L.jpg) ![Bussmann SL-20PK4 20 Amp Time Delay Loaded Link Rejection Base Plug Fuse, 125V UL Listed, 4-Pack - Image 2](https://m.media-amazon.com/images/I/71NYN5CxltL.jpg) ![Bussmann SL-20PK4 20 Amp Time Delay Loaded Link Rejection Base Plug Fuse, 125V UL Listed, 4-Pack - Image 3](https://m.media-amazon.com/images/I/61rLAnwMceL.jpg) ![Bussmann SL-20PK4 20 Amp Time Delay Loaded Link Rejection Base Plug Fuse, 125V UL Listed, 4-Pack - Image 4](https://m.media-amazon.com/images/I/61jGhDrqvSL.jpg) ![Bussmann SL-20PK4 20 Amp Time Delay Loaded Link Rejection Base Plug Fuse, 125V UL Listed, 4-Pack - Image 5](https://m.media-amazon.com/images/I/71iMTmvZilL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Reliable Genuine Bussmann Fuses — Perfect Fit and Great Quality *by A***R on February 20, 2026* Excellent quality fuses. The Bussmann SL-20PK4 20 Amp time delay fuses arrived quickly, were securely packaged, and exactly as described. Genuine UL-listed product with solid build quality and reliable performance. Perfect fit and works as expected. Great value for a 4-pack. Highly recommend. ### ⭐⭐⭐⭐⭐ Fuse Box *by A***K on March 23, 2026* Great product and exact match for the fuse box ### ⭐⭐⭐⭐⭐ Grateful *by D***N on January 8, 2026* So grateful someone still carries these! And at a reasonable price! ## Frequently Bought Together - Bussmann SL-20PK4 20 Amp Time Delay Loaded Link Rejection Base Plug Fuse, 125V UL Listed, 4-Pack - Bussmann SL-15 Low Voltage Medium Duty Time Delay Plug Fuse, 125 Vac, 15 A, 10 Ka - Bussmann SL-15PK4 15 Amp Time Delay Loaded Link Rejection Base Plug Fuse, 125V UL Listed, 4-Pack , Blue --- ## 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.hr/products/19531551-bussmann-sl-20pk4-20-amp-time-delay-loaded-link-rejection](https://www.desertcart.hr/products/19531551-bussmann-sl-20pk4-20-amp-time-delay-loaded-link-rejection) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-14*