Sigma Engineered Solutions ProConnex C-500 NM/SE 3/8in Clamp Type Connector, 100-Pack

Upgrade your electrical installations with the ProConnex C-500 NM/SE clamp-type connector. This 100-pack provides a practical, reliable option for terminating NM cable or flexible cord to a 1/2-inch knockout. It accommodates one 14/2-10/3 NM cable or a flexible cord in the 0.29–0.45 inch range, and it also supports two or three NM cables, making it a versatile choice for a variety of wiring layouts. The zinc die-cast body delivers sturdy, long-lasting performance, while tri-combo screws simplify installation in tight spaces. With UL and CSA listings, you can approach projects with confidence in safety and compliance.

Durable construction and dependable performance

• Durable zinc die-cast housing that resists wear and tear in real-world environments.
• Tri-combo screws for fast, secure fastening with common tools.
• UL and CSA listings meet recognized safety standards for electrical work.

Versatile compatibility for common wiring configurations

• Supports one 14/2-10/3 NM cable, or two NM cables in multiple configurations.
• Also accommodates three NM cables or 0.29–0.45 inch flexible cords, terminating to a 1/2 inch knockout.
• Designed to terminate NM cable or flexible cord in a variety of setups, including multiple cables per run.

In practice, this 100-pack can help keep runs organized, create clean terminations at standard knockouts, and maintain consistent wiring density across installations. The combination of durable construction, flexible compatibility, and a bulk-count pack supports both ongoing maintenance and repeat projects, without relying on promise or certainty—only practical possibilities for safer, neater terminations.

What you get and how to use it

• Bulk pack of 100 clamp-type connectors for multiple installations.
• Terminations designed for NM cable or flexible cords to a 1/2-inch knockout.
• Flexible enough to handle different cable counts per run while staying secure.