Square D I-Line HCJ Main Lugs Panelboard Interior with Aluminum Bus

Square D I-Line HCJ Main Lugs Panelboard Interior with Aluminum Bus

The Square D™ I-Line HCJ Panelboard Interior is a main lugs power distribution panelboard interior with an aluminum bus, engineered for service entrance equipment or downstream distribution panels on AC or DC electrical systems. It is sized for HCJ enclosures measuring 32in W x 48in H x 9.5in D and provides 27in of circuit breaker space, rated 600VAC / 250VDC maximum and cULus Listed. This interior is available in Motor FLA ratings of 600A and 800A, so buyers can size the interior to their service and distribution requirements. Compatible circuit breaker frames include B-Frame, J-Frame, QO, Q-Frame, and H-Frame, giving contractors flexibility when specifying breakers for new construction or panel retrofits.

Key Features

• Amp Rating Range: Available in 600A and 800A Motor FLA ratings to match project load requirements.
• Enclosure Fit: Designed for HCJ enclosures measuring 32in W x 48in H x 9.5in D, providing 27in of usable circuit breaker space.
• Aluminum Bus: Aluminum bus construction within a painted steel interior for efficient power distribution.
• Main Lugs Configuration: Main lugs load center type for downstream distribution or service entrance applications.
• Electrical Rating: 600VAC, 250VDC maximum for use on AC or DC systems.
• Compatible Breaker Frames: Accepts B-Frame, J-Frame, QO, Q-Frame, and H-Frame circuit breakers.
• Tightening Torque: 37.96 N.m for AWG 2/0...500 kcmil conductors.
• Dead Front Trim: Dead front trim is easily installed for finished appearance and safety.
• Factory Assembled: Factory assembled or ready to install for faster jobsite deployment.

Certifications & Compliance

• cULus Listed
• RoHS EU Compliant
• Mercury Free
• Toxic Heavy Metal Free

Technical Specifications

• Material: Painted Steel Interior with Aluminum Bus
• Product Or Component Type: Interiors
• Country of Origin: United States
• Toxic Heavy Metal Free: Yes
• Mercury Free: Yes
• ROHS Eur In Scope: Yes
• Reach Free Of Svhc: Yes
• With Recycled Cardboard: Yes
• Returnability: Yes
• Legacy WEEE Scope: In
• WEEE Product Category: 5

Typical Applications

• Service Entrance Equipment
• Downstream Distribution Panels
• Commercial and Industrial Power Distribution
• AC or DC Electrical Systems
• Panelboard and Load Center Wiring

Why Square D?

Square D I-Line panelboard interiors combine an aluminum bus with painted steel construction for reliable, code-compliant power distribution. Backed by cULus Listing and RoHS-compliant materials, this main lugs interior is factory assembled or ready to install, with an easily installed dead front trim for professional service entrance and distribution panel work across 600A and 800A ratings.