Mechanical Connectors

Mechanical Lugs, Split Bolt Connectors & Electrical Splicing Hardware

Mechanical connectors are widely used by electricians because they create strong, serviceable electrical connections using set screws or clamping hardware. Instead of requiring crimping dies and compression tools, mechanical styles secure conductors mechanically while maintaining dependable electrical contact.

These connectors are commonly used for panel terminations, service entrance wiring, grounding and bonding connections, feeder circuits, and general power distribution. Many mechanical connectors are designed for 600-volt electrical systems, but ratings and listings vary by product—always verify the specifications on the individual item page.

What’s Included in This Collection

You’ll find multiple categories of mechanical connectors that are commonly grouped as sub-collections on electrical manufacturer and distributor sites, including:

• Service Entrance Splices – Heavy-duty connectors used to splice larger conductors in service entrance and feeder applications.
• Aluminum Mechanical Lugs – Mechanical lugs commonly used to terminate aluminum conductors (and often dual-rated for copper/aluminum depending on the listing).
• Copper Mechanical Lugs – High-conductivity lugs designed specifically for copper conductors where maximum conductivity is required.
• Split Bolts – Classic mechanical connectors used for splicing and tapping conductors; frequently used in grounding and bonding work.
• Service Post Connectors – Designed for terminating conductors at service equipment, meter bases, and distribution points.
• Parallel Groove Clamps – Used to join parallel conductors, often in grounding systems and power distribution applications.

Why Electricians Choose Mechanical Connectors

• No crimping tools required – Many installations can be completed with common hand tools (follow manufacturer instructions).
• Strong mechanical hold – Set-screw and clamping designs provide a secure, stable connection.
• Serviceable – Mechanical connections can often be inspected and maintained over time.
• Versatile – Suitable for splicing, tapping, grounding, and terminations across many job types.

How to Choose the Right Connector

• Conductor material – Confirm copper-only vs aluminum vs dual-rated compatibility for your specific application.
• Wire size range – Match the connector to the conductor size (AWG/kcmil) you are installing.
• Application – Splice vs tap vs termination; the best connector style depends on the use case.
• Ratings and compliance – Confirm voltage rating and UL/cULus (or other) listings as required by your job.
• Environment – Consider corrosion exposure, moisture, and enclosure type when selecting hardware.

Quality Electrical Brands

Our mechanical connector selection focuses on dependable, contractor-grade products from trusted manufacturers such as Morris Products, commonly specified for electrical distribution work and maintenance applications.

Common Applications

• Service entrance wiring and feeder splices
• Electrical panel and disconnect terminations
• Grounding and bonding connections
• Wire splicing and conductor tapping
• Commercial and industrial power distribution

FAQs

What is a mechanical connector in electrical work?

A mechanical connector secures electrical conductors using set screws or clamping hardware instead of a crimped compression connection, making it a common choice for splicing, tapping, and terminations.

What’s the difference between mechanical and compression connectors?

Mechanical connectors clamp the conductor with hardware, while compression connectors require a crimping tool and die set to compress the connector onto the conductor.

Can I use these connectors for aluminum and copper conductors?

Some connectors are copper-only and others are dual-rated for copper/aluminum. Always verify conductor compatibility, listings, and any application notes on the specific product page before ordering or installing.

Are these connectors rated for 600V?

Many mechanical connectors used for distribution wiring are commonly rated for 600V, but ratings and listings vary by item. Confirm the exact rating on the product specifications page.

Browse the products above to find the right mechanical connector for your conductor material, wire size range, and electrical application.