The present invention provides an
electric vehicle, which is equipped with a high-
voltage battery for supplying
electric power to an
electric motor that outputs power for driving drive wheels, and a low-
voltage battery for supplying
electric power to auxiliary equipment, and is connected to the high-
voltage battery (36). The circuit (74) of the high-voltage power
system is provided with a
circuit breaker (62), and the circuit (75) of the low-voltage power
system connected to the low-voltage storage battery (40) is provided with a
circuit breaker (75) that switches the circuit off and on through manual operation. The manual
cut-off and conduction device (71) can switch the
cut-off and conduction of the circuit (74) of the high-voltage power
system through the power supply from the circuit (75) of the low-voltage power system and
cut off the circuit (75) of the low-voltage power system The
relay switch (63, 64) that cuts off the circuit (74) of the high-voltage power system is arranged on the circuit (74) of the high-voltage power system, and through the contact prevention device, only when the low-voltage power system is
cut off by the manual cut-off and conduction device (71) Under the condition of the circuit (75), it is allowed to contact the
circuit breaker (62). Thereby, it becomes easy to follow the work order at the time of maintenance of the circuit breaker of a high-voltage power system.