PURPOSE: To contract a set up area without increasing height by drawing out any one outgoing conductor at almost a right angle with a direction of opening/ closing action of a breaker part, and arranging the direction of opening/closing action of both the breaker parts almost at a right angle.

CONSTITUTION: Breaker parts 13b, 13c, operated by an operating part 13a, are horizontally arranged in series in two places, in a breaker 13. One outgoing conductor 14 is drawn out in a direction of opening/closing action from a side of the breaker part 13b. The other outgoing conductor 15 is drawn out at a right angle with the direction of opening/closing action from a side of the breaker part 13c. In the case of a gas insulation combined switchgear for power thus constituted, a breaker 10 is arranged above the breaker part 13c because the other outgoing conductor 15 is drawn out in the direction of opening/closing action of the breaker part 13c, so that necessary space is contracted by the set up area of the breaker 10.