Anyone know much about power connectors?

[dullard]

I've got a project where I need to connect 120VAC, 3A current to several heaters through a thin wall to my electronic control box. I'd like the heaters to be easilly disconnected when desired, but difficult to accidentally disconnect. The heaters have flying leads, as will the the wires inside the electronic box. So I need a simple two wire feed through connector that is easy to connect to flying leads.

I currently have this for low voltage low current components: Wall mounted panel with these connectors which are quite easy to connect with flying leads. I'm pretty sure that these won't handle high voltage or high currents - so I'd like something similar that is designed for that use.

Any suggestions?