Generac 6338 - 50-Amp (Twistlock) Non-Metallic Power Inlet Box

In order to use the Generac cable, you have to tilt the plug at about 10 degrees, push in and straighten as you push.
It's a little hard, but once you push it in and twist it several times, it's easy after that.

Am using this product to bring emergency power into my house. Looking back I wish I would have gone with the metal box hoping it would be a little sturdier. The 50 amp cord is very substantial so when you attach it engaging the twist lock it feels like you are gonna rip the plug from the plastic box body. Do yourself A favor and ditch the included 3 screws and put in small bolts with locking washers and thread lock. This helped sure up the installation. Also mount the plug high so you can visually guide the large 50 amp twistlock plug into the receptacle. I like the plastic box but I think they should make it of a heavier schedule material. Good luck.

Am using this product to bring emergency power into my house. Looking back I wish I would have gone with the metal box hoping it would be a little sturdier. The 50 amp cord is very substantial so when you attach it engaging the twist lock it feels like you are gonna rip the plug from the plastic box body. Do yourself A favor and ditch the included 3 screws and put in small bolts with locking washers and thread lock. This helped sure up the installation. Also mount the plug high so you can... more

The price was right, delivery was quick, and the box had plenty of room to hook up 6 gauge wires. Tough to work with, but all went well and works properly. All set for the next power issues.