{"id":89828,"date":"2026-10-02T11:09:26","date_gmt":"2026-10-02T09:09:26","guid":{"rendered":"https:\/\/www.vpsolar.com\/prodotto\/sungrow-battery-junction-box-per-sh50-80-125cx-sjc160-02-a0st7151\/"},"modified":"2026-10-02T11:14:42","modified_gmt":"2026-10-02T09:14:42","slug":"sungrow-battery-junction-box-per-sh50-80-125cx-sjc160-02-a0st7151","status":"publish","type":"product","link":"https:\/\/www.vpsolar.com\/en\/product\/sungrow-battery-junction-box-per-sh50-80-125cx-sjc160-02-a0st7151\/","title":{"rendered":"Sungrow Battery Junction Box per SH50-80-125CX \u2013 SJC160-02 | A0ST7151"},"content":{"rendered":"

Storage configurations<\/h3>\n
\n
\n
\n\n\n\n\n\n\n\n
Number of Junction Boxes<\/th>\nBattery strings connected in parallel<\/th>\nIndicative maximum capacity<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\n2<\/td>\n500 kWh<\/td>\n<\/tr>\n
2<\/td>\n3<\/td>\n750 kWh<\/td>\n<\/tr>\n
3<\/td>\n4<\/td>\n1,000 kWh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n

Capacities are rounded figures based on battery strings of approximately 250 kWh. The PowerKeeper ST250CF configuration has a nominal capacity of 249.6 kWh.<\/p>\n

Technical specifications<\/h3>\n
\n
\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Product designation<\/td>\nBattery Junction Box for SH50-80-125CX<\/td>\n<\/tr>\n
Product code<\/td>\nA0ST7151<\/td>\n<\/tr>\n
Model specified in Sungrow documentation<\/td>\nSJC160-02<\/td>\n<\/tr>\n
Battery storage system<\/td>\nSungrow PowerKeeper<\/td>\n<\/tr>\n
Maximum DC voltage<\/td>\n1,000 V<\/td>\n<\/tr>\n
Rated current per input<\/td>\n162.5 A<\/td>\n<\/tr>\n
Rated output current<\/td>\n200 A<\/td>\n<\/tr>\n
Protection devices<\/td>\nFuses and DC isolator<\/td>\n<\/tr>\n
Ingress protection rating<\/td>\nIP66<\/td>\n<\/tr>\n
Corrosion resistance classification<\/td>\nC5<\/td>\n<\/tr>\n
Dimensions, W \u00d7 H \u00d7 D<\/td>\n350 \u00d7 411 \u00d7 185 mm<\/td>\n<\/tr>\n
Weight<\/td>\n\u2264 12 kg<\/td>\n<\/tr>\n
Mounting<\/td>\nWall-mounted<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n

The electrical and mechanical specifications refer to model SJC160-02, as listed in the Sungrow datasheet.<\/p>\n

Applications and system sizing considerations<\/h3>\n

The Junction Box allows the storage system to be designed for future expansion, accommodating increased production loads or greater energy demand during periods without photovoltaic generation.<\/p>\n

Increasing energy capacity in kWh does not automatically increase power output in kW.<\/strong> System sizing must take into account inverter limits, electrical connections and permitted configurations. Backup performance depends on the complete system configuration and the loads to be supplied.<\/p>\n","protected":false},"excerpt":{"rendered":"

The Sungrow Battery Junction Box for SH50-80-125CX<\/strong>, product code A0ST7151<\/strong>, enables PowerKeeper storage capacity expansion in commercial and industrial applications. It allows multiple battery strings to be connected in parallel, providing an indicative total capacity of up to 1,000 kWh per inverter<\/strong>, in accordance with the configurations specified by the manufacturer.<\/p>\n

    \n
  • Modular expansion: connection of two, three or four PowerKeeper battery strings using one, two or three Junction Boxes respectively.<\/li>\n
  • Phased system sizing: storage capacity can be expanded to accommodate changes in the site’s energy requirements.<\/li>\n
  • Integrated protection: fuses and a DC isolator.<\/li>\n
  • Wall-mounted installation: compact design with a maximum weight of 12 kg.<\/li>\n
  • Environmental protection: IP66 ingress protection rating and C5 corrosion resistance classification.<\/li>\n<\/ul>\n","protected":false},"featured_media":89827,"template":"","meta":[],"product_brand":[],"product_cat":[7719,7720],"product_tag":[11677,11676,10915,10914,10921,11679,11682,11680,11681,11678,7739],"class_list":{"0":"post-89828","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-sungrow-inverter-en","7":"product_cat-sungrow-accessories","8":"product_tag-a0st7151","9":"product_tag-battery-junction-box","10":"product_tag-ci-energy-storage","11":"product_tag-industrial-energy-storage","12":"product_tag-modular-battery-storage","13":"product_tag-powerkeeper","14":"product_tag-sh125cx","15":"product_tag-sh50cx","16":"product_tag-sh80cx","17":"product_tag-sjc160-02","18":"product_tag-sungrow-en","20":"first","21":"instock","22":"shipping-taxable","23":"product-type-simple"},"yoast_head":"\nSungrow Battery Junction Box per SH50-80-125CX \u2013 SJC160-02 | A0ST7151 - VP Solar<\/title>\n<meta name=\"description\" content=\"Sungrow Battery Junction Box A0ST7151 for SH50-80-125CX: PowerKeeper expansion up to 1 MWh. 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