Reliance Controls PB50 50-Amp (CS6375) NEMA 3R Power Inlet Box,Gray

The WGen9500TFc generator arrived in perfect condition with everything I needed to start it. Surprisingly, it included a 25-foot natural gas hose with appropriate quick connections. The backup generator is connected to the main electrical panel through a 50A inlet box, powering all lights and appliances, including a 5-ton air conditioner with a soft starter (of course, I would need to limit the number of devices powered simultaneously). Great generator!

Ease of installation and wire connection

Built to last

This inlet box is very good quality but could use a few design changes. The connectors are designed for 8 AWG so you cannot connect 6 AWG (which is required for 50 amp) without using wire pin connectors and bending them 90 degrees. Next, the box is a bit too small for 6 AWG so make sure you use the bottom knock out. Otherwise, works well and gets the job done. Docking 1 star because it is not really well designed for 6 AWG.

got my electric to set it up.

Very high quality and easy to install box. Feels like it will keep the rain out nicely. Connectors all felt strong. Tested after installing with a 10000 watt generator with the whole house running. Worked perfectly.

Installed with 6/3 which is tight if you try to fold it in. Plan to caulk around top back and sides to keep water out from behind it. Would have preferred hole instead of slot for cover set screw. Just ran 9500w generator on it for 30+ hours with no issues.