Nsi Industries 259-DC2 4 Inch Compression Connector

Product Description

The NSI INDUSTRIES 259-DC2 is a 4-inch compression connector designed for use in electrical conduit installations. Compression connectors create a secure, weather-resistant mechanical connection between conduit and an enclosure or junction box knockout. This fitting is installed by licensed electricians during new construction, retrofit, and service work where a reliable conduit termination is required. The compression-style design eliminates the need for set screws, providing a consistent clamp force around the conduit for a low-resistance, vibration-resistant joint.

This connector is suited for 4-inch conduit runs in both residential and commercial electrical systems. It is typically used where conduit terminates at a panelboard, enclosure, junction box, or other electrical equipment. The compression fitting style is commonly specified on job sites where code-compliant, secure conduit terminations are required without the risk of set screw loosening over time.

Key Features

• 4-inch compression-style conduit connector for secure mechanical termination
• Compression design eliminates set screws for consistent clamping force
• Suitable for use at enclosures, junction boxes, and panelboard knockouts
• Supports vibration-resistant conduit connections in demanding installations

Compatibility

Designed as an OEM-style replacement or standard-fit compression connector for 4-inch conduit termination applications in residential and commercial electrical installations.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the circuit and enclosure before beginning conduit termination work. Ensure the knockout opening is properly sized and deburred before seating the connector. Tighten the compression nut by hand first, then use appropriate tools to achieve a firm, secure connection without overtightening.

Technical Specifications

• Conduit Size: 4 inches
• Connection Type: Compression
• UPC: 78174715259

Standard Information

• Brand: NSI INDUSTRIES
• Manufacturer Part Number: 259-DC2