The hot input wire from the power cord should goes to the reset button, which acts as a circuit breaker, the other blue wire from the reset will connect to terminal #1 on the switch. This way the reset button is protecting the switch and everything from there.
Since the other blue coming out if the unit had a push on blade connector, my guess is that this goes to the #2 terminal on the switch.
So power comes in on the cord, goes through the reset button, out on blue to switch, through switch and out on #2 into the unit.
The neutral wire that has a push on blade connector should go to #3 on the switch, this is the neutral return for the builtin pilot light on the switch, the #2 teminal will only have power once the switch is put into the "ON" position.
The remaining wires, 1 Blue, 2 Reds, 2 whites, and the last that looks brown, all these seem to be cut, and I cannot determine how these should get connected. Did they get cut to free the front panel?
You are right, cannot find a wiring diagram from Tripp. And they do not list your specific model number. Seems this unit is obsolete and no longer supported.
You state your unit is a power line conditioner, but the unit you show in
link is a DC power supply. Really does not matter I suppose, since Tripp has no wiring diagrams available for any of their units on their website.
Did the unit come with any wiring diagrams, in the manual, or maybe pasted on the unit someplace? I doubt it but worth asking.
Either you will need to determine the purpose of the wires I mentioned and can connect yourself from there, or get back with another diagram that shows where these wires go inside the unit.
You may need to pay closer attention to the colors and be sure which is blue and which is green, really cannot get these mixed up , since green or a green with a yellow tracer is usually ground.
Best I can do from here. Hope it helps.