This transfer switch is prewired and rated for breakers 20 amps and less.
It is likely that your city or county will require an electrical permit, which evokes an electrical inspection. I recommend an electrical permit be pulled for many reasons, whether you do the actual work or you hire an electrician to do the work.
I had an electrician install mine Unless you have serious skill set it is not wise to attempt this yourself If you do, make sure you have good fire insurance:-(
No this is not for outdoor use but they do have one for outdoor use
More than likely it is rated to be the same as the breakers is supports. This switch is just a 3 pole switch. Either in the OFF position, LINE position or GEN position. It just completes the selected circuit. I don't think I'd upsize the breaker amperage. They are design specifically for what they are. The do manufacture other "transfer switches" to accommodate what you wish to do. You may be able to find a higher rated switch to change out, but you will certainly void your warranty and possibly overheat the wiring specifically designed for this unit.
This is not basic electric. You should consider hiring a professional. Working with electric is dangerous, and if you do not know what you are doing, asking for advice from anyone other than a professional is not a very good idea.
With regards to the Reliance Control 30 amp 7500 watt, non-fuse, 6-circuit, transfer switch kit, unless the manufacturer has modified this product, it is my understanding that most of the common one-inch interchangeable circuit breakers are acceptable, there is a label on the transfer switch that indicates what they are. The GE singe-pole 20 amp circuit breaker is a THQL1120.
Yes, it comes with a 3/4" metal flex conduit, approx 18" long which is pre-installed on the bottom. It does however, have 3/4' knockouts on the sides, near the bottom.to allow for relocation of the conduit. At any rate, the conduit is installed at the bottom section of the panel due to the top section accommodating the switches.
Short answer is no.
It's rated NEMA 3R. Check the rating on the unit you have purchased. It should be listed NEMA 3R. That means it is rain tight. It doesn't mean you can mount in under a spill way or downspout. Use common sense when mounting it. Keep it up to eye level. Under an overhang would be good. You can improvise by building a small roof over it and a sunblock. Helpful if mounting it in the direct sunlight. Water and heat are enemies of electrical gear. Think cool and dry!