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⚡ Bond smarter, install faster, and stay certified with Sigma ProConnex!
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.











| 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 |
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