Smartplug Converstion

My trailer came with a twist lock detachable cord. I had failures with the blades in the cord end, the wires loosened in the inlet and the cheesy plastic ring was troublesome. I installed a locking hatch and modified it to exclude pests, then hard-wired a cord. You can argue about the merits of various contacts all you want, but I prefer a continuous wire where it passes thru combustible materials. Pulling out only what I need, easily wiping the cord clean and no need to carry and find a storage place are additional benefits.