The Sigma Electric ProConnex 1 in. Die-Cast Zinc Screw-In Coupling for FMC is built to keep your inner wiring clean, secure, and compliant. Designed specifically for Flexible Metal Conduit (FMC), this 1-inch diameter coupling delivers a robust, non-corrosive connection that stands up to everyday indoor use. What makes this ProConnex coupling stand out
- Die-cast zinc construction: A durable, solid connection that resists wear and maintains a tight seal over time, even in busy indoor environments.
- ProConnex reliability: Part of Sigma Electric’s trusted ProConnex line, crafted for consistent performance across residential and commercial installations.
- Comprehensive safety compliance: UL Listed, CSA Listed, and ETL Listed, giving you confidence that the component meets stringent electrical standards.
- Indoor, dry-location suitability: Optimized for dry indoor wiring runs where FMC conduit is used, ensuring dependable operation without exposure to moisture.
- Precise 1-inch fit for FMC: Engineered to mate seamlessly with 1 in. FMC, providing a secure, easy-to-install coupling that minimizes installation time.
- Boxed packaging: Ready for professional workflows, with packaging that protects the connector from damage during transport and storage. Why you’ll value this screw-in coupling in real-world projects
- Streamlined installations: The screw-in design makes it quick to assemble, reducing on-site labor while delivering a solid mechanical grip on the FMC conduit.
- Long-term durability: Die-cast zinc resists impact and wear in busy electrical rooms, basements, or crawl spaces, helping to maintain ground continuity and protection for the conductor.
- Code-compliant reliability: With UL, CSA, and ETL listings, you can trust this coupling to meet code requirements for indoor dry-location FMC installations.
- Versatile applications: Ideal for new builds and renovations where a dependable, space-efficient connector is needed to join FMC runs or terminate conduit to boxes and fittings. Key specifications at a glance
- Product: Screw-In Coupling for FMC
- Material: Die-Cast Zinc
- Diameter: 1 inch
- Conduit Compatibility: FMC (Flexible Metal Conduit)
- Application: Indoor, Dry Location
- Listings: UL Listed, CSA Listed, ETL Listed
- Packaging: Boxed
- Brand: Sigma Electric, ProConnex sub-brand
- Includes: 1 piece per package Best-use scenarios and practical tips
- Residential basements and utility rooms: Use this coupling to create clean, secure FMC transitions where space is tight and reliability matters.
- Office and commercial corridors: Pair with standard FMC runs to maintain a neat conduit network that’s easy to inspect and service.
- Remodels and retrofits: When adding or extending FMC, this 1 in. die-cast zinc coupling provides a quick, durable connection that remains stable over time.
- Maintenance and upgrades: Choose ProConnex for replacements in existing installations where you want to preserve grounding paths and ensure consistent performance. Installation considerations
- Ensure the FMC you’re connecting is clean-cut, free of burrs, and properly seated.
- Align the coupling threads with the conduit end, insert fully, and tighten with a suitable wrench until the connection feels secure for your specific installation.
- Verify all components in the run meet local electrical codes and that the installation remains in a dry indoor environment to preserve connector integrity. The Sigma Electric ProConnex 1 in. Die-Cast Zinc Screw-In Coupling for FMC brings focused durability, reliable safety standards, and a precise fit for indoor FMC applications. It’s a purpose-built choice for electricians and contractors who value ease of installation without compromising long-term performance.
