A power converter circuit which is connected to a three-phase AC power supply via first to third input lines (Lr, Ls, Lt) and via a neutral line (Ln) including an opening/closing switch and a current-limiting resistor and which is connected to a capacitor via a positive-side DC power line and a negative-side DC power line, the power converter circuit comprising: - upper arm-side switching elements (Trp, Tsp, Ttp) which are provided on upper arms of at least two phases among upper arms of three phases and which makes a current pathway from the first to third input lines (Lr, Ls, Lt) to the positive-side DC power line conductive in a conductive state; - lower arm-side switching elements (Trn, Tsn, Ttn) which are provided on lower arms of the at least two phases among the three phases and which makes a current pathway from the negative-side DC power line to the first to third input lines (Lr, Ls, Lt) conductive in a conductive state; - control units (300A, 300C) which control switching of the upper arm-side switching elements (Trp, Tsp, Ttp) and the lower arm-side switching elements (Trn, Tsn, Ttn) and which control opening and closing of the opening/closing switch, and - a shunt resistor which is provided between the lower arm-side switching elements (Trn, Tsn, Ttn) and the capacitor on the negative-side DC power line and is used to measure a value of a current flowing into the capacitor, wherein - the control units (300A, 300C) close the opening/closing switch until an inrush current becomes suppressible after start of energization of the power converter circuit and control switching of each of the switching elements (Trp, Trn, Tsp, Tsn, Ttp, Ttn) so that the upper and lower arms of one phase enter a conductive state and the remaining arms enter a non-conductive state, and - the control units (300A, 300C) set a timing at which the opening/closing switch is closed until an inrush current becomes suppressible after start of energization as a timing at which a period from the start of energization to a time in which an inrush current becomes suppressible has elapsed, the time being a time in which the value of the current which is measured by using the shunt resistor falls to or below a predetermined value. - upper arm-side switching elements (Trp, Tsp, Ttp) which are provided on upper arms of at least two phases among upper arms of three phases and which makes a current pathway from the first to third input lines (Lr, Ls, Lt) to the positive-side DC power line conductive in a conductive state; - lower arm-side switching elements (Trn, Tsn, Ttn) which are provided on lower arms of the at least two phases among the three phases and which makes a current pathway from the negative-side DC power line to the first to third input lines (Lr, Ls, Lt) conductive in a conductive state; - control units (300A, 300C) which control switching of the upper arm-side switching elements (Trp, Tsp, Ttp) and the lower arm-side switching elements (Trn, Tsn, Ttn) and which control opening and closing of the opening/closing switch, and - a shunt resistor which is provided between the lower arm-side switching elements (Trn, Tsn, Ttn) and the capacitor on the negative-side DC power line and is used to measure a value of a current flowing into the capacitor, wherein - the control units (300A, 300C) close the opening/closing switch until an inrush current becomes suppressible after start of energization of the power converter circuit and control switching of each of the switching elements (Trp, Trn, Tsp, Tsn, Ttp, Ttn) so that the upper and lower arms of one phase enter a conductive state and the remaining arms enter a non-conductive state, and - the control units (300A, 300C) set a timing at which the opening/closing switch is closed until an inrush current becomes suppressible after start of energization as a timing at which a period from the start of energization to a time in which an inrush current becomes suppressible has elapsed, the time being a time in which the value of the current which is measured by using the shunt resistor falls to or below a predetermined value.