Sigma Electric ProConnex 2-1/2 in. D Die-Cast Aluminum Service Entrance Head For Rigid, IMC and EMT

Meet the Sigma Electric ProConnex 2-1/2 in. Die-Cast Aluminum Service Entrance Head, a purpose-built termination point designed for outdoor electrical installations where strength and reliability matter. This robust component is crafted in die-cast aluminum to resist the elements while maintaining a clean, professional finish on every job.

Why this matters for your project

• Durable die-cast aluminum construction: Built to withstand weather, physical wear, and frequent service connections without compromise.
• 2-1/2 in. diameter: Sized for common service entrance applications, providing a secure, code-compliant termination point.
• Conduit versatility: Engineered to work with Rigid, IMC and EMT conduits, giving you flexible installation options across different systems.
• Certifications you can rely on: UL Listed and CSA Listed, ensuring compliance with safety standards for outdoor electrical work.
• ProConnex design: A single, integrated service entrance head with a cap for a neat, secure connection that installers trust.
• Outdoor-ready by design: Specifically suited for external environments, so you can depend on it in exposed locations.

Ideal use cases

• Outdoor service entries for commercial buildings, multifamily housing, or residential projects requiring a sturdy termination point for rigid, IMC, or EMT conduits.
• Connections at meter enclosures, disconnects, or distribution panels where a reliable, durable head is essential for long-term performance.
• Renovations or new installations where professionals demand a conductive, corrosion-resistant components that stands up to weather exposure.

What sets ProConnex apart

• Material advantage: Die-cast aluminum delivers a balanced combination of strength, light handling, and resistance to corrosion in outdoor settings—outperforming common plastic alternatives in durability.
• Conduit flexibility: By supporting multiple conduit types, this head reduces inventory complexity and streamlines on-site fittings.
• Standards-aligned safety: UL and CSA listings provide clear, recognized validation that the component meets essential safety criteria for outdoor electrical work.

Practical tips for installation and longevity

• Confirm your conduit type (Rigid, IMC, or EMT) is compatible with the 2-1/2 in. service entrance head for a secure fit.
• Install according to local codes for outdoor electrical installations to ensure lasting performance in exposed environments.
• Keep a small set of ProConnex components on hand for future expansions or service upgrades to maintain a uniform, reliable system.

Product details at a glance

• Brand: Sigma Electric
• Sub-brand: ProConnex
• Type: Service Entrance Head with cap
• Material: Die-Cast Aluminum
• Diameter: 2-1/2 in
• Conduit Compatibility: Rigid, IMC and EMT
• Listed: UL Listed, CSA Listed
• Indoor/Outdoor: Outdoor
• Quantity: 1 per package