The Sigma Electric ProConnex 3 in. D Die-Cast Aluminum Service Entrance Head for NM/SE is built to simplify and secure your service entry installations. Crafted from rugged die-cast aluminum, this head delivers dependable performance for NM/SE conductors, combining durability with thoughtful design that helps protect cable terminations and maintain a clean, professional finish.
Key features that set this service entrance head apart:
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Durable die-cast aluminum body provides sturdy protection for the service entrance connection while resisting impact and corrosion in everyday electrical environments.
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3 in. diameter configuration offers ample space for NM/SE conductors and precise seating for the service entrance cap, promoting a reliable, installer-friendly fit.
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Code-approved reliability with UL Listed, CSA Listed, and ETL Listed credentials, giving you confidence in safety compliance and long-term performance.
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ProConnex by Sigma Electric — a trusted sub-brand known for purpose-built, dependable electrical fittings designed to streamline residential and light commercial wiring.
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Conduit compatibility: NM/SE suitable for service entrances that use nonmetallic (NM) or SE cable, helping to standardize installations across different wiring methodologies.
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Includes a service entrance cap to complete the assembly and protect the entry point right out of the box (1 piece per package).
Ideal use cases
This 3 in. die-cast service entrance head is well suited for replacing worn or undersized components in NM/SE service runs, upgrading existing entrances, or outfitting new residential or light commercial projects where a robust, code-listed head is required. Its durable construction makes it a practical choice for hard-wearing environments where reliable cable termination and protection are essential.
Why this Sigma Electric ProConnex head stands out
Compared with generic fittings, the ProConnex 3 in. service entrance head emphasizes durability, precise fit, and verified safety credentials. The die-cast aluminum body provides a strong, stable mount for NM/SE cables, while the 3 in. diameter supports comfortable cable management and dependable seating of the entrance cap. With UL, CSA, and ETL listings, it’s designed to meet rigorous electrical codes, helping you avoid rework or compliance issues on the job.
Installation and compatibility tips
- Verify NM/SE compatibility and ensure the knockout size aligns with your installation requirements.
- Mount the head securely to the enclosure or conduit system, then install the included service entrance cap for a complete termination.
- Confirm listings and local code requirements for your region to ensure full compliance with safety standards.
Upgrade to the Sigma Electric ProConnex 3 in. Die-Cast Aluminum Service Entrance Head for NM/SE and experience a durable, code-supported solution that simplifies wiring, protects conductors, and delivers long-lasting performance in everyday service entrance installations.
