Operating device and circuit breaker

An operating device comprising:

• a lever rotatable about a rotating axis;
• a first torsion bar coupled to the lever, having a tubular shape including the rotating axis as its central axis, and extending in a first direction along the rotating axis;
• a second torsion bar provided inside the first torsion bar, extending along the rotating axis, coupled to the first torsion bar at a portion located farther in the first direction than the lever, and extending from the portion of coupling with the first torsion bar toward a second direction opposite to the first direction beyond the lever;
• and
• a third torsion bar surrounding the second torsion bar, having a tubular shape including the rotating axis as its center, coupled to the second torsion bar at a portion located farther in the second direction than the lever, and extending from the portion of coupling with the second torsion bar in the first direction, wherein
• rotation of the third torsion bar is restricted at its end located in the first direction.