--- product_id: 534809354 title: "Rack-A-Tiers Open Splice Junction Box (Single) (UL Listed) Repair Open Splices, 5 Second Installation, Electrical Junction Box (JB400)" brand: "rack-a-tiers" price: "€ 25.36" currency: EUR in_stock: true category: "Rack A Tiers" url: https://www.desertcart.pt/products/534809354-rack-a-tiers-open-splice-junction-box-single-ul-listed store_origin: PT region: Portugal --- # 25.8 cu in volume - spacious splice capacity Fire-resistant polymer - UL & CSA safety certified 5-second install - ultra-fast setup Rack-A-Tiers Open Splice Junction Box (Single) (UL Listed) Repair Open Splices, 5 Second Installation, Electrical Junction Box (JB400) **Brand:** rack-a-tiers **Price:** € 25.36 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your electrical game with the fastest, safest splice box on the market! ## Quick Answers - **What is this?** Rack-A-Tiers Open Splice Junction Box (Single) (UL Listed) Repair Open Splices, 5 Second Installation, Electrical Junction Box (JB400) by rack-a-tiers - **How much does it cost?** € 25.36 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/534809354-rack-a-tiers-open-splice-junction-box-single-ul-listed) ## Best For - rack-a-tiers enthusiasts ## Why This Product - Trusted rack-a-tiers brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Four-Sided Wiring Slots:** Flexible access from all directions for seamless wire management. - • **UL & CSA Certified Safety:** Built tough with fire-resistant polymer to meet rigorous North American safety standards. - • **Spacious 25.8 Cubic Inches:** Roomy design accommodates multiple splices without rewiring headaches. - • **One-Piece Patent-Pending Design:** Fewer parts, hinged lid, zero fuss—secure your splices without disconnecting wires. - • **Effortless 5-Second Installation:** Get your wiring code-compliant in a flash with a simple 3-step process. ## Overview The Rack-A-Tiers Open Splice Junction Box (JB400) is a UL-listed, fire-resistant polymer electrical box designed for quick, code-compliant splice repairs. Featuring 25.8 cubic inches of capacity, four wiring slots, and a patented one-piece hinged lid, it enables effortless installation in just 5 seconds without disconnecting wires. Made in the USA and rigorously tested to meet UL 514C and CSA C22.2 #182 standards, this junction box combines safety, simplicity, and solid construction for professional electricians and DIYers alike. ## Description 4" Open Junc Box ## Features - 25.8 Cubic inches of volume. - No need to disconnect the wiring. - Slots for wiring on four sides of the junction box. - Splice Box Made in the USA. - SAFE – Developed through rigorous laboratory testing, this j-box (junction box) is built with fire-resistant polymer designed to meet U.S. (U.L. 514C) and Canada (CSA C22.2 # 182) safety codes. Safely enclosing open wire splices is your legal responsibility and this wire cover is the most effortless method. - SOLID – The patent-pending one-piece design means fewer parts and pieces to manage. With the hinged lid that folds down to seal the wire splice, you no longer have to re-wire open splices to get them in the junction box. - SIMPLE – The revolutionary 3-step install process makes taking care of this common code violation easy for electricians and DIYers alike and turns splice box installation into a quick job. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C765NZB2 | | Best Sellers Rank | #57,371 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #135 in Electrical Boxes | | Brand Name | Rack-A-Tiers | | Capacity | 25.8 cubic inches | | Color | Multicolor | | Customer Reviews | 4.6 4.6 out of 5 stars (583) | | Finish Type | Powder Coated | | Included Components | 4" Open Junc Box | | Installation Type | Screw-In | | Item Dimensions D x W x H | 2"D x 5"W x 5"H | | Item Weight | 0.1 kg | | Manufacturer | Rack-a-tiers | | Material | fire-resistant polymer | | Model Number | JB400 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | JB400 | | Specification Met | Csa | | Style | Safety | | UPC | 625912324008 | | Unit Count | 1 Count | ## Product Details - **Brand:** Rack-A-Tiers - **Color:** Multicolor - **Material:** fire-resistant polymer - **Product Dimensions:** 2"D x 5"W x 5"H - **Style:** Safety ## Images ![Rack-A-Tiers Open Splice Junction Box (Single) (UL Listed) Repair Open Splices, 5 Second Installation, Electrical Junction Box (JB400) - Image 1](https://m.media-amazon.com/images/I/71SjSo5LfoL.jpg) ## Frequently Bought Together - Rack-A-Tiers Open Splice Junction Box - Single, 5 Second Installation, Repair Open Splices - Southwire Romex Brand Simpull Solid Indoor 14/2 W/G NMB Cable 25ft coil - SW# 28827421 - WAGO 221 Lever Nuts 28pc Compact Splicing Wire Connector Assortment with Case | Includes 221-2401, 221-412, 221-413, 221-415 --- ## 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.pt/products/534809354-rack-a-tiers-open-splice-junction-box-single-ul-listed](https://www.desertcart.pt/products/534809354-rack-a-tiers-open-splice-junction-box-single-ul-listed) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-01*