--- product_id: 180711594 title: "BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs)" brand: "bojack" price: "10842CFA" currency: XOF in_stock: true reviews_count: 8 category: "Bojack" url: https://www.desertcart.sn/products/180711594-bojack-t4al250v-5x20mm-4a-250v-slow-blow-fuses-4-amp store_origin: SN region: Senegal --- # Slow-blow time-delay tech 4A current rating 250V voltage capacity BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs) **Brand:** bojack **Price:** 10842CFA **Availability:** ✅ In Stock ## Summary > ⏳⚡ Protect your gear with precision—because every amp counts! ## Quick Answers - **What is this?** BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs) by bojack - **How much does it cost?** 10842CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/180711594-bojack-t4al250v-5x20mm-4a-250v-slow-blow-fuses-4-amp) ## Best For - bojack enthusiasts ## Why This Product - Trusted bojack brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact 5x20mm Glass Tube:** Space-saving, transparent design for easy inspection and seamless integration - • **Robust 250 Volt Endurance:** Reliable protection for circuits up to 250 volts, perfect for demanding setups - • **Bulk Pack with Storage Case:** 20 fuses neatly packed for convenience and long-term project readiness - • **Time-Delay Slow-Blow Design:** Absorbs inrush surges to prevent nuisance trips and ensure smooth startups - • **Precision 4 Amp Current Handling:** Engineered to support steady 4A loads without premature blowouts ## Overview The BOJACK T4AL250V fuse pack offers 20 high-quality 5x20mm slow-blow glass tube fuses rated at 4 amps and 250 volts. Designed with time-delay technology, these fuses expertly handle inrush currents and protect sensitive circuits from overloads, making them ideal for professional-grade electronics and musical instrument amplifiers. Packaged in a durable storage case, they combine reliability with convenience for the discerning millennial professional. ## Description BOJACK 20 Pcs High Quality Slow-blow Glass Fuse Fuse model:T4AL250V Fuse Current: 4A Fuse Voltage: 250V Fuse Dimension:5x20mm/0.2x0.78 Inch The role of the Slow-blow fuse：The slow-blow fuse is also called a time-delay fuse. Its delay characteristic is maintained in the circuit when it has a non-fault pulse current and can protect against long-term overload. Some circuits have a current greater than a few times the normal operating current at the switching instant. Althoughthis current peak is very high, it occurs for a short period of time.We call it a pulse current or an inrush current or a surge current.Ordinary fuses can not withstand such currents. If such a circuituses an ordinary fuse, it may not be able to start normally. If a larger fuse is used, it will not be protected when the circuit is overloaded. The melt of the time-delay fuse is specially processed to absorbenergy. By adjusting the energy absorption, it can resist the inrushcurrent and protect the overload. Review: Fuses - They do the job Review: Fuses - Good price and quick delivery ## Features - BOJACK 20 Pcs High Quality Slow-blow Glass Fuse - Fuse Dimension: 5x20mm/0.2x0.78 Inch - Fuse Current: 4A - Fuse Voltage: 250V - Package Quantity: 20 pcs Packed in a plastic storage case ## Technical Specifications | Specification | Value | |---------------|-------| | AC adapter current | 4 Amps | | ASIN | B07Z6B774K | | Best Sellers Rank | 13,223 in DIY & Tools ( See Top 100 in DIY & Tools ) 45 in Fuses & Holders | | Brand | BOJACK | | Country Of Origin | China | | Customer Reviews | 4.6 out of 5 stars 3,207 Reviews | | Manufacturer | BOJACK | | Material | Glass | | Maximum Current | 4 Amps | | Model Number | BJ-SBT-4A | | Mounting Type | Through-Hole Mount | | Mounting type | Through-Hole Mount | | UPC | 769390172161 | | Voltage | 250 Volts | ## Product Details - **AC adapter current:** 4 Amps - **Brand:** BOJACK - **Material:** Glass - **Mounting type:** Through-Hole Mount - **Voltage:** 250 Volts ## Images ![BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs) - Image 1](https://m.media-amazon.com/images/I/71OO2oMmVIL.jpg) ![BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs) - Image 2](https://m.media-amazon.com/images/I/61DQzciYQGL.jpg) ![BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs) - Image 3](https://m.media-amazon.com/images/I/71szzI99pRS.jpg) ![BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs) - Image 4](https://m.media-amazon.com/images/I/71zBKXPqiOL.jpg) ![BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs) - Image 5](https://m.media-amazon.com/images/I/61c0Jum4A1L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fuses *by W***E on 18 March 2026* They do the job ### ⭐⭐⭐⭐⭐ Fuses *by C***R on 24 January 2026* Good price and quick delivery ### ⭐⭐⭐⭐⭐ Works *by A***R on 12 December 2025* Managed to fix under floor heating with this...saved a lot compared to Calling a plumber --- ## 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.sn/products/180711594-bojack-t4al250v-5x20mm-4a-250v-slow-blow-fuses-4-amp](https://www.desertcart.sn/products/180711594-bojack-t4al250v-5x20mm-4a-250v-slow-blow-fuses-4-amp) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-08-27*