A circuit breaker system is provided; the circuit breaker system comprises of a transformer, a capacitor, a pulse generator, a EBWF fuse and a VCB, the circuit breaker system can interrupt rated load current, overload current, surge load current and short-circuit load current within 100 microseconds. The on-state voltage drop of the circuit breaker system is below 0.1V. The circuit breaker system interrupts load current by injecting a non-resonant pulse current to reduce the current between the contacts of the VCB, and circuit breaker system interrupts higher load current by detonating the EBWF fuse to force an open-circuit. The EBWF fuse comprises a detonator in the low terminal and a contacting bellows in the upper terminal. The EBWF fuse can be engaged and dis-engaged by a fuse holder system.