Sigrupery 50 Amp Generator Inlet Box 120/240V 12,000W Galvanized Steel, NEMA 3R Weatherproof

Sigrupery 50 Amp Generator Inlet Box provides a weatherproof, code-ready external connection point for 120/240V portable generators up to 12,000W.

This compact, galvanized-steel inlet lets you safely link a portable 50A generator to your home's transfer switch or subpanel without running extension cords through doors or windows. Built to NEMA 3R standards, it shields the plug from rain and debris while providing a roomy interior for tidy wiring and a grounding terminal for secure connections.

How does this inlet keep generator hookups safer?

The unit isolates the generator connection outside the house so cords and plugs remain dry and visible, reducing tripping hazards and moisture-related faults. A built-in grounding terminal supports proper grounding, and the fully enclosing cover prevents direct exposure to the elements when the inlet is unused.

• Galvanized-steel enclosure resists corrosion and physical damage.
• Full-cover lid protects the plug from rain and snow.
• Grounding terminal included for safe system bonding.
• Compatible with NEMA SS2-50P 50A generator cords.

What wiring and installation options are supported?

The box accepts 6–12 AWG conductors and includes pre-drilled holes on the side, back, and bottom to accommodate different cable entry preferences. Its larger internal volume creates room to route and secure wires cleanly, improving heat dissipation and reducing strain on terminations.

• Wiring range: 6–12 AWG for flexible conductor selection.
• Pre-drilled knockouts on side, back, and bottom for versatile entry.
• Bottom-facing unused-hole closure keeps out dust and pests.
• Instructions included; professional electrician installation recommended.

Will it withstand outdoor weather and seasonal conditions?

Yes — the inlet meets NEMA 3R requirements, meaning the enclosure is built to resist rain, sleet, and light snow while allowing necessary ventilation for electrical equipment. A protective coating and galvanized construction extend service life in coastal or wet climates.

• Galvanized steel body with weather-resistant finish.
• Design prevents water intrusion when the plug is connected or closed.
• Durable against wind-driven rain and typical outdoor exposure.
• Suitable for year-round use in most residential settings.

How does this inlet compare to other 50A boxes?

Compared with many competitors, this Sigrupery inlet offers a larger interior for neater wiring and better cooling, plus convenient tool-free access to the wiring cap when needed. The combination of grounding provision, multiple entry knockouts, and a fully covering lid makes it a practical choice for reliable generator connections.

• More internal capacity for easier wire routing and organization.
• Tool-free wiring cap removal simplifies maintenance during operation.
• Multiple mounting hole locations for flexible installation options.
• Engineered to fit standard 50A NEMA SS2-50P generator cords.

Who is this for: Homeowners, contractors, and property managers who need a code-conscious, weatherproof solution to connect a 50A portable generator to a 120/240V transfer switch or subpanel. It’s suited for those seeking a durable outdoor inlet with roomy internal wiring space and simple installation features; a licensed electrician should perform the final wiring and inspection.