Wiring Samlex PST-300 Watt Inverter; ran into a snag!

Ron3rd wrote:
... if you wiggle the wire at all it pops out. .. connection is very weak due to the small set screw. .

For any long-term operation I think you're going to have to mount the inverter securely, and do a very careful job of strain-relief on the cables.

I've had a similar experience with a Prosine 2.0 -not your bottom of the barrel device. The hard-wire version had #12 pigtails on the ac side. That's really cutting it close for a 2,000 watt inverter.