Choosing the right intersystem bonding termination device helps ensure reliable grounding across all service and communications systems. The options below cover common bonding bridges and connectors designed to consolidate grounding points, reduce corrosion, and simplify installation. This guide highlights five widely used devices from reputable brands, with their key features to help contractors and homeowners compare performance, compatibility, and ease of use.
Product Overview
| Product | Brand | Key Features |
|---|---|---|
| Southwire MEIBB 1/2 in. Inline Intersystem Bonding Bridge Connector | Southwire Store | Eliminates holes in buildings, 6 terminating points, isolated main ground conductor |
| Morris Products 90588 Intersystem Bonding Connector | Morris Store | Meets NEC 250.94, lay-in feature, bonds all low voltage grounds, easy main conductor termination |
| IBT2-6.4-14CVAD Southwire Bonding Bridge, 1PK | Southwire Store | All-grounds bonding at single location, weather-resistant cover, wide conductor range |
| SIGMA ENGINEERED SOLUTIONS ProConnex 42400 Intersystem Bonding Bridge Conduit Fitting | Sigma Engineered Solutions Store | Multi-system grounding, lay-in design, supports #6 to #2 main & #14 to #4 auxiliary |
| ERICO INC IBTB IBTB INTERSYSTEM BONDING TERM | ERICO | Multitool accessory; durable; manufactured in China |
Southwire MEIBB Inline Bonding Bridge Connector
The Southwire MEIBB inline bonding bridge is designed to streamline bonding across multiple systems while protecting the structure from water ingress. It provides six terminating points, more than the NEC minimum, which can simplify future expansions or retrofits. The main ground conductor is isolated from communications lines to reduce interference and corrosion risk. The inline configuration helps consolidate grounds at a single, weather-protected point, supporting quick installation in electrical closets and service entrances.
Morris Products 90588 Intersystem Bonding Connector
The Morris 90588 Intersystem Bonding Connector meets NEC 250.94 for bonding multiple grounding systems to the main ground electrode. It features a lay-in capability that enables termination to the existing main ground electrode without cutting or splicing conductors, simplifying installations below the meter. The design supports quick, secure connections for low voltage service grounds and balances reliability with ease of use in modern arrays or retrofit projects.
Southwire IBT2-6.4-14CVAD Bonding Bridge
Southwire’s IBT2-6.4-14CVAD bonding bridge consolidates grounding conductors from telephone, cable, and satellite services at a single location. It includes a weather-resistant PVC cover and uses a main range from #6 to #2 and a tap range from #14 to #4, enabling flexible integration with existing grounding systems. Its compact footprint and robust enclosure make it suitable for outdoor utility areas and service entrances where weather exposure is a concern.
SIGMA ENGINEERED SOLUTIONS ProConnex 42400
Sigma ProConnex 42400 enables multi-system grounding by mounting directly to the grounding electrode conductor, supporting up to four systems at one location. It offers wide compatibility with main ground wires ranging #6 to #2 and auxiliary grounds #14 to #4, with a lay-in lug design for straightforward installation. The device is suitable for solid or stranded copper conductors and is designed to facilitate rapid, secure terminations in both new builds and retrofits.
ERICO IBTB Intersystem Bonding Term
ERICO’s IBTB intersystem bonding term serves as a multitool accessory for grounding systems. While described as highly durable, this product’s listing emphasizes its rugged construction and suitability for demanding environments. It is designed to integrate with existing bonding schemes and may be used as part of broader grounding strategies in complex electrical installations. Availability and compatibility should be confirmed with project specifications.
Buying Guide: Key Purchase Considerations
When selecting an intersystem bonding termination device, consider these factors to ensure compliance, reliability, and ease of installation:
- Conductor compatibility: Check main and auxiliary conductor sizes supported (#6 to #2 for main, #14 to #4 for auxiliary) and whether both solid and stranded copper are accepted.
- System coverage: Determine how many systems you need to bond at one location and whether the device supports multi-system grounding.
- Electrical code compliance: Ensure the product meets NEC 250.94 and related requirements for bonding to the main ground electrode.
- Environmental protection: For outdoor or damp locations, prioritize weather-resistant enclosures or PVC covers.
- Installation features: Lay-in lugs, easy termination, and plug-and-play components can reduce installation time and errors.
- Future proofing: Consider expandability if you foresee adding more services or equipment to the grounding network.
- Durability and materials: Look for corrosion-resistant materials and robust construction for long-term reliability.
Across these products, the common goal is to consolidate grounding points, simplify installation, and maintain robust bonding across electrical and service systems. Contractors should verify installation details, field conditions, and compatibility with existing grounding infrastructure to select the most appropriate device for each project.