Bonanza 35 pilot reported a gear up landing occurred as a result of the circuit breaker having tripped and the pilot not checking that gear was down before landing.

Narrative

The flight today was from ZZZ1 to ZZZ. I left ZZZ1 at XA50 and attempted to land at XB10. The weather conditions were clear; with winds at 5 knots and the ambient temperature at around 110F. The landing gear was not lowered; resulting in a gear up landing. The flaps were at full extension. The aircraft swung right off the runway onto the north side of the embankment off the runway and came to rest in soft sand and dirt. The aircraft was recovered by raising it with jacks and extending the gear with the emergency landing gear handle. Before lowering the gear and as per the emergency extension checklist; I reached to lower the landing gear handle and found it was already down. As I reached over to the pulled the circuit breaker; it was already tripped. The mechanical gear indicator was indicating that it was about 10% extended. Speaking to a mechanic who was outside of the aircraft after it was jacked up and the landing gear manually being extended by me; he observed that the doors were slightly open but the gear seemed to be retracted. There was also a substantial amount of dirt and sand inside of the gear doors.The circuit breaker was tripped and I did not verify the gear was not down: 1. Contributing Factor: High Outside Air Temperature may have caused the landing gear circuit breaker to trip 2. Contributing Factor: I remember trying to extend the gear at 121 knots. This may have overpowered the gear motor as the Landing Gear limit is 123 knots. 3. Contributing Factor: Going to ZZZ for the first time distracted me to the extent that I didn't verify the gear was down. 4. Contributing Factor: Knowing there was a soaring event nearby; Incident pilot's attention emphasized looking for traffic and served as a distraction.