Photovoltaic array junction box

The utility model discloses a photovoltaic array junction box, which comprises fuses, a circuit breaker, a positive electrode bus bar, a negative electrode bus bar and a non-contact type DC current detector, wherein the non-contact type DC current detector consists of a plurality of current sensors and a detection display module, each path of positive electrode and each path of negative electrode of the photovoltaic array are respectively connected in series with one fuse and are then connected in parallel to the corresponding positive electrode bus bar and the negative electrode bus bar, multiple paths of positive electrodes and multiple paths of negative electrodes of the photovoltaic array are respectively connected in parallel into one path through the corresponding bus bar and are then respectively output through the circuit breaker, and each path of positive electrode and each path of negative electrode of the photovoltaic array are respectively connected with one current sensor. The utility model can be conveniently used for carrying out real-time detection and monitoring on each group and series of current, a lightning protection device can also be connected between the positive electrode bus bar and the negative electrode bus bar, so the junction box has the lightning protection function, and the system safety can be improved.