The invention relates to an analog circuit breaker, in particular to a simple analog circuit breaker. The simple analog circuit breaker comprises a control power source, a switch-on control loop and a trip control loop, wherein the switch-on control loop and the trip control loop are connected with the control power source. A normally-closed contact HWJ1 of a switch-on position relay in the switch-on control loop is connected with a coil HJ of a switch-on relay in series, a normally-closed contact TWJ1 of a trip position relay in the trip control loop is connected with a coil TJ of a trip relay in series, a normally-closed contact TJ1 of the trip relay, a normally-open contact HWJ2 of the switch-on position relay, a normally-open contact HJ2 of the switch-on relay and a coil HWJ of the switch-on position relay are sequentially connected in series, the normally-open contact HWJ2 of the switch-on position relay and the normally-open contact HJ2 of the switch-on relay are connected in parallel, a normally-closed contact HJ1 of the switch-on relay, a normally-open contact TWJ2 of the trip position relay, a normally-open contact TJ2 of the trip relay and a coil TWJ of the trip position relay are sequentially connected in series, and the normally-open contact TWJ2 of the trip position relay and the normally-open contact TJ2 of the trip relay are connected in parallel. In a total group test of a relay protection device, trip and switch-on operation of the circuit breaker can be simulated, the number of switching times can be reduced, damage to contacts of the high-voltage circuit breaker is avoided, and reliable operation of equipment is facilitated.