Also, the fuse block is located toward the front of the engine compartment, it is a four layered design, with each layer being a circuit board. Even if it got saturated, it should not be affected. Submerged, that is anther story.
My Jeep Wrangler's engine compartment fuse block is located on the left fender, gets wet all the time, and is of no better design than the H3.
If you ever require access, you will be very happy with the location, and also happy to know it is the one and only fuse block in the vehicle. No more engine compartment and I/P fuse blocks. Those I/P fuse blocks were difficult to get to.