Eaton MTB Main Terminal Box, NEMA 3R Enclosure

Eaton MTB Main Terminal Box, NEMA 3R Enclosure

The Eaton MTB Main Terminal Box delivers reliable electrical distribution in a durable NEMA 3R enclosure, built to withstand rain, sleet, and ice formation for dependable outdoor performance. This main terminal box ships with phase and neutral lugs already included, giving electricians complete connection hardware for fast, secure installation without sourcing separate lug kits. Configured for top/bottom feed, the Eaton MTB accommodates a range of conduit routing and installation requirements across residential, commercial, and industrial electrical distribution applications. Eaton designed this terminal box to provide professional-grade performance for projects that demand weather-resistant protection and long-term electrical reliability.

Key Features

• NEMA 3R Enclosure: Weather-resistant housing protects internal phase and neutral connections against rain, sleet, and ice formation, supporting reliable outdoor operation year-round.
• Included Phase and Neutral Lugs: Complete connection hardware is provided out of the box, supporting immediate installation and secure electrical terminations without additional purchases.
• Top/Bottom Feed Design: Flexible feed configuration accommodates a variety of conduit routing and installation layouts, simplifying planning for new construction and retrofit projects alike.
• Main Terminal Construction: Robust terminal box design supports reliable power distribution and long-term electrical performance in demanding service environments.
• Professional-Grade Materials: Durable construction is built to withstand environmental exposure while maintaining electrical integrity across the life of the installation.

Certifications & Compliance

• NEMA 3R Rated Enclosure

Technical Specifications

• Configuration: NEMA 3R; Standard
• Enclosure: NEMA 3R
• Feed Type: Top/bottom

Typical Applications

• Residential Electrical Service Distribution
• Commercial Building Power Distribution
• Industrial Facility Electrical Connections
• Outdoor Electrical Installations
• Service Entrance Applications
• Generator Connection Points

Why Eaton?

Eaton main terminal boxes are engineered with a NEMA 3R weatherproof enclosure and professional-grade construction to hold up in demanding electrical distribution applications. The included phase and neutral lugs simplify installation for electrical contractors, eliminating the need to source separate connection hardware before a job can move forward. The durable terminal box housing is designed to maintain electrical integrity in outdoor conditions, supporting code-compliant, long-term performance for service entrance, generator connection, and general distribution work where weather-resistant construction matters.