| Factor | Oil Breaker | Air Breaker | Vacuum/SF6 |
|---|---|---|---|
| Safety | In oil breaker circuit risk of explosion and fire due to increase in pressure during multiple operations | In air breaker emission of hot air and ionized gas to surroundings | In Vacuum there is no risk of explosion |
| Size | It is quite Large in size. | It is medium in size | It is smaller in size |
| Maintenance | It needs regular oil replacement | It needs replacement of arcing contacts | It needs minimum lubrication for control device |
| Environmental Factor | Humidity and dust in the internal properties | Atmosphere can change and affect the dielectric | Since sealed, no effect due to environment |
| Endurance | Below average | Average | Excellent |