Hammond HJ Series 12″ Steel Outdoor Wall Mount Junction Box

The Hammond HJ Series 12″ Steel Outdoor Wall Mount Junction Box is a rugged, industrial-grade enclosure designed to protect electrical components in harsh indoor and outdoor environments. Constructed from 16-gauge steel with a 14-gauge cover, this enclosure features smooth, continuously welded seams that eliminate weak points and prevent the intrusion of dust, moisture, and contaminants.

Engineered for reliability, the HJ Series includes a continuous hinged cover secured with stainless steel clamps and hardware, along with a poured-in-place gasket that ensures a tight environmental seal. The enclosure meets NEMA Type 3R, 4, 12, and 13 ratings (IP66 equivalent), making it suitable for outdoor installations where equipment may be exposed to rain, washdown conditions, or airborne contaminants.

With a standard 12″ x 12″ x 6″ footprint, this wall-mounted junction box provides ample space for electrical terminations, telecom connections, and control equipment while maintaining a compact profile.

Key Features

• 12″ x 12″ enclosure size with multiple depth options (5″, 6″, 8″)
• Heavy-duty 16-gauge steel body / 14-gauge cover for durability
• Continuously welded seams for superior environmental protection
• NEMA 3R, 4, 12, 13 / IP66 rated for outdoor and washdown environments
• Hinged door with stainless steel clamps for secure access
• Seamless gasket seal to prevent moisture and dust ingress
• Welded mounting brackets for easy wall installation
• Internal grounding and bonding studs for safety

If you need a compact, extremely durable outdoor enclosure, the Hammond HJ Series 12″ junction box is one of the most reliable options available. The 12x12x6 model is the sweet spot for most installs, while shallower or deeper variants let you fine-tune based on space and equipment needs.