Middle Atlantic MPR-JB863A Rackmount Junction Box

Product Description

The Middle Atlantic MPR-JB863A is a rackmount junction box designed for use in AV, IT, and low-voltage installation environments. Measuring 8 x 6 x 3 inches, this enclosure provides a secure, organized termination point for wiring and cable management within rack systems. It is intended for installation by low-voltage technicians, AV integrators, and electricians who need a clean, code-compliant solution for housing wire connections adjacent to or within equipment racks. The compact footprint makes it suitable for space-constrained rack builds where a dedicated wiring enclosure is required.

This junction box is used in residential and commercial rack installations where cable terminations, wire splices, or connection points must be enclosed and protected. It mounts in rackmount accessory positions and is a practical addition to any structured wiring or AV rack build. Typical applications include home theater equipment racks, commercial AV installations, and low-voltage control systems.

Key Features

• Compact 8 x 6 x 3 inch enclosure sized for rackmount accessory applications
• Designed for organized wire termination and cable management within rack systems
• Sold individually as a single unit (each)
• Fits within the Middle Atlantic rackmount accessory ecosystem

Compatibility

Designed as an OEM-style rackmount junction box accessory for use with standard equipment rack systems where a compact wiring enclosure is needed.

Installation Notes

Installation is typically performed by a licensed low-voltage technician or electrician in accordance with applicable NEC requirements for enclosures and wire management. Power down all circuits connected to the rack before routing or terminating wiring inside the junction box. Ensure all conductors are properly terminated and that the enclosure cover is secured before restoring power. Follow local code requirements for junction box accessibility and labeling.