The answer to 'why is my surge protector hot to touch' is that a surge protector getting hot is a sign of an issue that requires attention. This could indicate the surge protector is overloaded, damaged, or malfunctioning. A hot surge protector can be a fire hazard, so it's important to address the problem promptly.
Some common causes of a hot surge protector include plugging in too many high-wattage devices, a faulty or old surge protector, or an electrical issue in the home's wiring. If the surge protector is hot to the touch, unplug it immediately and discontinue use. Inspect the surge protector for any visible damage, and consider replacing it if it appears worn or damaged.