SURAIELEC 50 Amp Generator Power Inlet Box 120/240V — Weatherproof Galvanized Steel, ETL-Certified

The SURAIELEC 50 Amp Generator Power Inlet Box is a weatherproof outdoor inlet with a NEMA SS2-50P plug, ETL-certified receptacle, and heavy-gauge galvanized-steel enclosure for 120/240V backup power connections.

When you need a durable, code-ready connection point for a portable generator, the SURAIELEC 50 Amp inlet box delivers a robust, weather-resistant interface that accepts standard 50-amp generator cords. Built with a 3R-rated rainproof enclosure, an extra-large cover, and an ETL-certified plug, it’s made for outdoor installation where protection from moisture, dust, and mechanical wear is critical.

How does this inlet box handle outdoor exposure?

The unit uses a 3R rainproof galvanized-steel enclosure and an oversized cover to keep water and debris out of the electrical connection. The enclosure resists corrosion and adds mechanical strength, helping maintain integrity in wet or dusty conditions.

• 3R rainproof rating for outdoor protection
• Galvanized-steel construction resists rust and impact
• Extra-large cover reduces ingress of rain and dust
• Special outlet hole design prevents debris entry around the cord

What electrical specs and cord compatibility should I expect?

This inlet box is designed for 120/240V systems and supports up to 50 amps via a NEMA SS2-50P plug, suitable for common 50A generator cords and 12,000W capacities. It accepts 4–6 AWG wire sizes, making it compatible with the gauge range used for heavy-duty generator connections.

• NEMA SS2-50P plug for standard 50A generator cords
• Rated for 120/240V and up to 12,000W handling
• Compatible with 4–6 AWG wiring
• ETL-certified receptacle for recognized safety standards

How easy is installation and service access?

The SURAIELEC inlet box includes multiple removable knockouts and a detachable front panel to simplify routing conduit and conductor entry and to speed up installation. Knockouts on the bottom, side, and back enable flexible mounting orientations and multi-directional cable runs, while the large interior helps with connections and terminal access.

• Six removable knockouts for bottom, side, and back entries
• Detachable front panel for easier wiring and maintenance
• Spacious interior accommodates larger lugs and connectors
• Pre-punched holes reduce on-site modification work

What safety features and certifications are included?

The receptacle in this inlet box is ETL-certified, which indicates compliance with established safety test standards for electrical equipment. Combined with the rainproof enclosure and a secure outlet opening design, it reduces exposure risks while maintaining a code-conscious installation footprint.

• ETL-certified NEMA SS2-50P receptacle
• Outlet hole design minimizes foreign object intrusion
• Galvanized steel provides durable mechanical protection
• Designed for outdoor use in standby and temporary generator setups

Who is this for: The SURAIELEC 50 Amp Generator Power Inlet Box is aimed at homeowners, contractors, RV owners, and small-business operators who need a reliable, code-conscious external generator connection point. It suits anyone installing a permanent outdoor inlet for backup power or frequent portable-generator use, and for electricians who require a sturdy, easy-to-wire box with recognized safety certification.