TSN3-63L RCBO is used in the single phase circuit of AC 50/60Hz, rated voltage 240V, as electron shock protection. It can protect circuit from overload and short circuit. This product has advantages of small volume and high breaking capacity. It cuts off the live wire and zero wire at the same time. It also protects person from electric shock when the live wire is connected opposite. The products comply with the standards of IEC61009.