--- product_id: 16560936 title: "Sigma ProConnex 42400 Grounding Intersystem Bonding Bridge, 1-Pack" brand: "sigma engineered solutions" price: "334 kr" currency: DKK in_stock: true category: "Sigma Engineered Solutions" url: https://www.desertcart.dk/products/16560936-sigma-proconnex-42400-grounding-intersystem-bonding-bridge-1-pack store_origin: DK region: Denmark --- # Grounds up to 4 systems simultaneously Lay-in lug for effortless installation cULus listed for certified safety Sigma ProConnex 42400 Grounding Intersystem Bonding Bridge, 1-Pack **Brand:** sigma engineered solutions **Price:** 334 kr **Availability:** ✅ In Stock ## Summary > ⚡ Bond smarter, install faster, and stay certified with Sigma ProConnex! ## Quick Answers - **What is this?** Sigma ProConnex 42400 Grounding Intersystem Bonding Bridge, 1-Pack by sigma engineered solutions - **How much does it cost?** 334 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/16560936-sigma-proconnex-42400-grounding-intersystem-bonding-bridge-1-pack) ## Best For - sigma engineered solutions enthusiasts ## Why This Product - Trusted sigma engineered solutions brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Multi-System Mastery:** Ground up to four electrical systems in one sleek, space-saving unit. - • **Certified Reliability:** Meets NC 2011 article 250.94 and cULus listed for peace of mind on every job. - • **Dual Conductor Approved:** Works seamlessly with both solid and stranded copper conductors—no compromises. - • **Effortless Installation:** Lay-in style lug design makes setup quick and hassle-free, perfect for pros on the go. - • **Universal Wire Compatibility:** Supports main ground wires #6 to #2 and auxiliary wires #14 to #4 for ultimate versatility. ## Overview The Sigma ProConnex 42400 Grounding Intersystem Bonding Bridge is a compact, zinc-finished conduit fitting designed to ground up to four electrical systems simultaneously. Compatible with a wide range of copper conductor sizes (#6 to #2 main, #14 to #4 auxiliary), it features a lay-in lug for easy installation and is approved for both solid and stranded conductors. Certified to meet NC 2011 article 250.94 and cULus listed, it ensures professional-grade safety and reliability in electrical grounding applications. ## Description Elevate your electrical installations with the Sigma Engineered Solutions ProConnex 42400 Intersystem Bonding Bridge Conduit Fitting, 1-Pack (Gray), your solution for efficient grounding of multiple systems in a single location. This bonding bridge mounts directly to the grounding electrode conductor, allowing you to ground up to four systems simultaneously. With a main ground wire range from #6 to #2 and an auxiliary ground wire range from #14 to #4, this bonding bridge ensures compatibility with various conductor sizes. The lay-in style lug makes installation a breeze, whether you're working with solid or stranded copper conductors. ## Features - MULTI-SYSTEM GROUNDING: Mounts directly to the grounding electrode conductor, enabling grounding of up to four systems in one location. - VERSATILE COMPATIBILITY: Main ground wire range accommodates #6 to #2 conductors, while auxiliary ground wire range handles #14 to #4 conductors. - EASY INSTALLATION: Lay-in style lug design facilitates easy installation, suitable for solid or stranded copper conductors. - DUAL CONDUCTOR APPROVAL: Approved for use with both solid and stranded copper conductors for versatility in electrical setups. - CERTIFICATIONS: Meets NC 2011 article 250.94, and product is cULus listed ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B006VX3RVO | | Best Sellers Rank | #254,748 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #460 in Electrical Conduit Fittings | | Brand Name | Sigma Engineered Solutions | | Color | Gray | | Connector Type | Tee | | Customer Reviews | 4.8 4.8 out of 5 stars (125) | | Exterior Finish | Zinc | | Global Trade Identification Number | 00031857424008 | | Included Components | Sigma Engineered Solutions ProConnex 42400 Intersystem Bonding Bridge Conduit Fitting, 1-Pack, Gray | | Item Dimensions | 4.25 x 1.31 x 1.75 inches | | Item Type Name | Intersystem Bonding Bridge Conduit Fitting | | Item Weight | 4.8 ounces | | Manufacturer | Sigma Engineered Solutions | | Manufacturer Part Number | 42400 | | Manufacturer Warranty Description | Warranty | | Material Type | Zinc | | Model Number | 42400 | | Number of Pieces | 1 | | Size | Intersystem Bonding Bridge Conduit Fitting | | Thread Type | NPT | | UPC | 031857424008 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Sigma Engineered Solutions - **Color:** Gray - **Connector Type:** Tee - **Exterior Finish:** Zinc - **Item Weight:** 4.8 ounces - **Item dimensions L x W x H:** 4.25 x 1.31 x 1.75 inches - **Material:** Zinc - **Number of Pieces:** 1 - **Size:** Intersystem Bonding Bridge Conduit Fitting - **Thread Type:** NPT ## Images ![Sigma ProConnex 42400 Grounding Intersystem Bonding Bridge, 1-Pack - Image 1](https://m.media-amazon.com/images/I/61RnKqYdSLL.jpg) ![Sigma ProConnex 42400 Grounding Intersystem Bonding Bridge, 1-Pack - Image 2](https://m.media-amazon.com/images/I/61oM+0m7CKL.jpg) ![Sigma ProConnex 42400 Grounding Intersystem Bonding Bridge, 1-Pack - Image 3](https://m.media-amazon.com/images/I/71GqBre4xEL.jpg) ![Sigma ProConnex 42400 Grounding Intersystem Bonding Bridge, 1-Pack - Image 4](https://m.media-amazon.com/images/I/71rvKersZvL.jpg) ![Sigma ProConnex 42400 Grounding Intersystem Bonding Bridge, 1-Pack - Image 5](https://m.media-amazon.com/images/I/71GCQBhLHvL.jpg) --- ## 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.dk/products/16560936-sigma-proconnex-42400-grounding-intersystem-bonding-bridge-1-pack](https://www.desertcart.dk/products/16560936-sigma-proconnex-42400-grounding-intersystem-bonding-bridge-1-pack) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-07-18*