---
product_id: 16560936
title: "SIGMA ENGINEERED SOLUTIONS ProConnex 42400 Intersystem Bonding Bridge Conduit Fitting, 1-Pack (Gray)"
brand: "sigma engineered solutions"
price: "€ 38.25"
currency: EUR
in_stock: true
reviews_count: 9
category: "Sigma Engineered Solutions"
url: https://www.desertcart.fr/products/16560936-sigma-engineered-solutions-proconnex-42400-intersystem-bonding-bridge-conduit-fitting
store_origin: FR
region: France
---

# Grounds up to 4 systems simultaneously Lay-in lug for effortless installation Supports #6 to #2 main & #14 to #4 aux conductors SIGMA ENGINEERED SOLUTIONS ProConnex 42400 Intersystem Bonding Bridge Conduit Fitting, 1-Pack (Gray)

**Brand:** sigma engineered solutions
**Price:** € 38.25
**Availability:** ✅ In Stock

## Summary

> ⚡ Connect smarter, ground stronger — the pro’s choice for seamless bonding!

## Quick Answers

- **What is this?** SIGMA ENGINEERED SOLUTIONS ProConnex 42400 Intersystem Bonding Bridge Conduit Fitting, 1-Pack (Gray) by sigma engineered solutions
- **How much does it cost?** € 38.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/16560936-sigma-engineered-solutions-proconnex-42400-intersystem-bonding-bridge-conduit-fitting)

## 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 location.
- • **Dual Conductor Approved:** Certified for both solid and stranded copper conductors—versatility you can trust.
- • **Effortless Installation:** Lay-in style lug design means no fuss, just fast, reliable grounding.
- • **Universal Compatibility:** Fits a wide range of conductor sizes from #14 to #2, perfect for diverse setups.
- • **Certified Safety Standard:** Meets NC 2011 article 250.94 and cULus listed for peace of mind on every job.

## Overview

The SIGMA ENGINEERED SOLUTIONS ProConnex 42400 is a zinc-finished intersystem bonding bridge conduit fitting designed to ground up to four electrical systems simultaneously. Compatible with a broad range of conductor sizes (#6 to #2 main, #14 to #4 auxiliary), it features a lay-in lug for easy installation with both solid and stranded copper conductors. Certified to meet NC 2011 article 250.94 and cULus listed, this compact 4.25 x 1.31 x 1.75 inch fitting ensures professional-grade safety and efficiency 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.

Review: Good bonding bridge - Good value for the cost easy install my township electrical inspector is requiring 2 ground rods and a bridge on every house to get a CO my local hardware store was sold out but desertcart came to the rescue the only thing is just a heads up does not come with mounting hardware not a deal breaker but if you are on the job bring screws to mount it
Review: Yes - Exactly what I needed

## 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 |
| Batteries Required? | No |
| Best Sellers Rank | #176,320 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #271 in Electrical Conduit Fittings |
| Brand | Sigma Engineered Solutions |
| Color | Gray |
| Connector Type | Tee |
| Customer Reviews | 4.8 4.8 out of 5 stars (123) |
| Date First Available | January 10, 2012 |
| Exterior Finish | Zinc |
| Global Trade Identification Number | 00031857424008 |
| Included Components | Sigma Engineered Solutions ProConnex 42400 Intersystem Bonding Bridge Conduit Fitting, 1-Pack, Gray |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 4.8 ounces |
| Item dimensions L x W x H | 4.25 x 1.31 x 1.75 inches |
| Item model number | 42400 |
| Manufacturer | Sigma Engineered Solutions |
| Material | Zinc |
| Number of Pieces | 1 |
| Part Number | 42400 |
| Product Dimensions | 4.25 x 1.31 x 1.75 inches |
| Size | Intersystem Bonding Bridge Conduit Fitting |
| Thread Type | NPT |
| UPC | 031857424008 |
| Warranty Description | Warranty |

## Product Details

- **Brand:** Sigma Engineered Solutions
- **Color:** Gray
- **Connector Type:** Tee
- **Exterior Finish:** Zinc
- **Item Weight:** 0.3 Pounds
- **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 ENGINEERED SOLUTIONS ProConnex 42400 Intersystem Bonding Bridge Conduit Fitting, 1-Pack (Gray) - Image 1](https://m.media-amazon.com/images/I/61RnKqYdSLL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good bonding bridge
*by J***2 on March 31, 2023*

Good value for the cost easy install my township electrical inspector is requiring 2 ground rods and a bridge on every house to get a CO my local hardware store was sold out but amazon came to the rescue the only thing is just a heads up does not come with mounting hardware not a deal breaker but if you are on the job bring screws to mount it

### ⭐⭐⭐⭐⭐ Yes
*by T***N on June 19, 2025*

Exactly what I needed

### ⭐⭐⭐⭐⭐ media ground bar
*by R***L on May 15, 2025*

worked and looks good for media ground requirements of NEC

---

## 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.fr/products/16560936-sigma-engineered-solutions-proconnex-42400-intersystem-bonding-bridge-conduit-fitting](https://www.desertcart.fr/products/16560936-sigma-engineered-solutions-proconnex-42400-intersystem-bonding-bridge-conduit-fitting)

---

*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-03-10*