RVMATE 50A Generator Inlet Box NEMA SS2-50P — Pre-Drilled Steel Weatherproof with LED Indicator

RVMATE's Pre-Drilling 50 Amp generator inlet box is a weatherproof, ETL-certified NEMA SS2-50P inlet built for simple installation, visible power indication, and roomy internal wiring space for portable generator hookups.

This outdoor inlet box is designed to connect a 125/250V, 50A generator to transfer switches or generator-ready load centers without complicated modifications. Its patented pre-drilled housing removes the need for drilling or special knockouts, so homeowners, RV owners, and handypersons can install the inlet quickly and safely. The corrosion-resistant steel shell, LED power indicator, and expanded interior make the RVMATE inlet a practical upgrade for seasonal power, emergency backup, and RV shore hookups.

How does the pre-drilling design speed up installation?

The pre-drilled pattern eliminates the typical need for a drill, knockout punch, or professional metalwork, letting you mount and wire the inlet with common hand tools. The front housing is removable so you can access terminals and route conductors easily.

• Pre-drilled mounting holes fit standard layouts for NEMA SS2-50P inlets.
• Removable front panel allows clear access to wiring clamps and ground.
• Saves time and reduces installation labor costs.

What safety and certification features does this inlet include?

This inlet box carries ETL/cETL certification for 125/250V, 50A service and is rated to handle typical generator output ranges. A weatherproof flip cover protects the connector when not in use and a clear LED indicator confirms when power is present for safer outdoor operation.

• ETL/cETL certified for 6250/12500W (125/250V) generator connections.
• Visible green LED on flip cover shows successful power connection.
• Weatherproof cover reduces moisture and ingress into the inlet.

How much wiring space does the RVMATE inlet provide?

The internal cavity is substantially larger than standard inlet boxes, offering ample room to dress wires, attach lugs, and secure grounds without crowding. The added space simplifies routing and reduces stress on conductors during termination.

• Approximately 50% more interior volume than typical inlet boxes.
• Roomy layout supports neat conductor bending radius and strain relief.
• Front-removable face speeds terminal access and inspection.

Is this inlet built to withstand outdoor conditions?

The enclosure is formed from steel with a durable powder-coat finish that resists corrosion and surface wear from weather exposure. When the inlet isn’t in use, the flip cover seals the connector to help keep out rain, dust, and pests.

• Anti-rust powder-coat protects the steel housing from corrosion.
• Flip cover provides a weather-resistant barrier for the inlet connector.
• Sturdy construction suitable for outdoor mounting near generators or RV panels.

Who is this for? The RVMATE Pre-Drilling 50 Amp Generator Inlet Box suits homeowners preparing backup power, RV owners needing a robust shore/generator connection, contractors who want faster installs, and DIYers upgrading transfer switch feed points. If you need a certified, weatherproof inlet with easy wiring access and a visible power indicator, this unit is built to simplify installation and improve outdoor reliability without special tools.