Nsi Industries N-4 Copper Split Bolt Connector 4 Awg

Product Description

The NSI INDUSTRIES N-4 is a copper split bolt connector sized for 4 AWG conductors. Split bolt connectors create a reliable mechanical bond between two conductors without soldering or crimping. The connector threads together to clamp conductors securely, making it a standard choice for splicing or tapping wire runs in electrical distribution work. Electricians use these connectors in panel feeders, grounding systems, and service entrance applications where a solid, code-compliant connection is required.

The N-4 split bolt is suited for residential and light commercial electrical installations. It is commonly installed when joining or tapping copper conductors in junction boxes, conduit bodies, or service equipment enclosures. The connector is sized specifically for 4 AWG conductors and is a go-to fastener for grounding electrode conductors and bonding jumpers where a listed mechanical connector is required by the NEC.

Key Features

• Copper construction for excellent conductivity and corrosion resistance
• Split bolt design allows splicing or tapping without soldering
• Sized for 4 AWG conductors
• Suitable for grounding, bonding, and feeder tap applications

Compatibility

Designed as an OEM-style replacement and standard-stock split bolt connector for use with 4 AWG copper conductors in residential and commercial electrical installations.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize all circuits at the panel before making any connections. Use an appropriately sized wrench to tighten the bolt body until conductors are firmly clamped. Wrap completed connections with listed self-fusing or vinyl electrical tape where required by code or application.

Technical Specifications

• Material: Copper
• Conductor Size: 4 AWG
• UPC: 66238102003

Standard Information

• Brand: NSI INDUSTRIES
• Manufacturer Part Number: N-4