The lineup of PBZ series is as follows:
(Model name: PBZxx-xx, where xx indicates the rated voltage and rated current.)

PBZ20-20/PBZ40-10/PBZ60-6.7/PBZ80-5
PBZ20-20A (allows for peak current up to 6 times that of the rated output)

PBZ SR series: (racks up each model of PBZ20-20/PBZ40-10/PBZ60-6.7/PBZ80-5 up to three to five units in parallel)

PBZ BP series: (racks up each model of PBZ20-20/PBZ40-10 up to six to ten units in parallel)
Read the user’s manual for the details.