\u0644\u0642\u062f \u0642\u0645\u0646\u0627 \u0645\u0624\u062e\u0631\u064b\u0627 \u0628\u062a\u0635\u0646\u064a\u0639 200 \u0635\u0646\u062f\u0648\u0642 \u062a\u062c\u0645\u064a\u0639 \u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a \u0645\u062e\u0635\u0635<\/strong>, \u060c \u0643\u0644 \u0645\u0646\u0647\u0627 \u0645\u064f\u0647\u064a\u0623 \u0628\u0640 16 \u0645\u062f\u062e\u0644 \u0633\u0644\u0633\u0644\u0629 \u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 \u0648\u062e\u0631\u062c \u062a\u064a\u0627\u0631 \u0645\u0633\u062a\u0645\u0631 \u0648\u0627\u062d\u062f<\/strong>, \u060c \u062c\u0646\u0628\u064b\u0627 \u0625\u0644\u0649 \u062c\u0646\u0628 \u0645\u0639 \u062d\u0645\u0627\u064a\u0629 \u0641\u062a\u064a\u0644 \u0633\u0644\u0633\u0644\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629\u060c \u0648\u062d\u0645\u0627\u064a\u0629 \u0627\u0646\u062f\u0641\u0627\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631\u060c \u0648\u0648\u062d\u062f\u0629 \u0645\u0631\u0627\u0642\u0628\u0629 \u062a\u062c\u0645\u064a\u0639 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629\u060c \u0648\u0648\u0638\u064a\u0641\u0629 \u062a\u062d\u0643\u0645 \u0639\u0646 \u0628\u0639\u062f \u062e\u0627\u0635\u0629 \u0628\u0627\u0644\u0645\u0634\u0631\u0648\u0639.<\/p>\n\n\n\n \u064a\u0634\u0631\u062d \u0647\u0630\u0627 \u0627\u0644\u062f\u0644\u064a\u0644 \u0645\u0627 \u064a\u0641\u0639\u0644\u0647 \u0635\u0646\u062f\u0648\u0642 \u062a\u062c\u0645\u064a\u0639 \u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a \u0628\u0640 16 \u0645\u062f\u062e\u0644\u064b\u0627 \u0648\u062e\u0631\u062c\u064b\u0627 \u0648\u0627\u062d\u062f\u064b\u0627\u060c \u0648\u0645\u0627 \u0628\u062f\u0627\u062e\u0644\u0647\u060c \u0648\u0643\u064a\u0641 \u064a\u0645\u0643\u0646 \u062f\u0645\u062c \u0627\u0644\u0645\u0631\u0627\u0642\u0628\u0629 \u0648\u0627\u0644\u062a\u062d\u0643\u0645 \u0639\u0646 \u0628\u0639\u062f\u060c \u0648\u0645\u0627 \u0627\u0644\u0630\u064a \u064a\u062c\u0628 \u0639\u0644\u0649 \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u064a\u0646 \u0648\u0627\u0644\u0645\u0634\u062a\u0631\u064a\u0646 \u062a\u062d\u062f\u064a\u062f\u0647 \u0642\u0628\u0644 \u0637\u0644\u0628 \u062d\u0644 \u0645\u062e\u0635\u0635.<\/p>\n\n\n\n A \u0635\u0646\u062f\u0648\u0642 \u0627\u0644\u062a\u062c\u0645\u064a\u0639 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a \u0627\u0644\u0645\u062e\u0635\u0635 \u0628\u0640 16 \u0633\u0644\u0633\u0644\u0629<\/strong> \u064a\u0633\u062a\u0642\u0628\u0644 \u0627\u0644\u0637\u0627\u0642\u0629 \u0645\u0646 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0645\u0646 16 \u0633\u0644\u0633\u0644\u0629 \u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 \u0648\u064a\u062c\u0645\u0639\u0647\u0627 \u0641\u064a \u062f\u0627\u0626\u0631\u0629 \u062a\u064a\u0627\u0631 \u0645\u0633\u062a\u0645\u0631 \u0648\u0627\u062d\u062f\u0629 \u0635\u0627\u062f\u0631\u0629 \u0642\u0628\u0644 \u0623\u0646 \u062a\u0633\u062a\u0645\u0631 \u0627\u0644\u0637\u0627\u0642\u0629 \u0646\u062d\u0648 \u0639\u0627\u0643\u0633 \u0623\u0648 \u0645\u0639\u062f\u0627\u062a \u062a\u064a\u0627\u0631 \u0645\u0633\u062a\u0645\u0631 \u0623\u062e\u0631\u0649 \u0641\u064a \u0627\u0644\u0645\u0635\u0628.<\/p>\n\n\n\n \u0627\u0639\u062a\u0645\u0627\u062f\u064b\u0627 \u0639\u0644\u0649 \u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0645\u0634\u0631\u0648\u0639\u060c \u064a\u0645\u0643\u0646 \u0644\u0635\u0646\u062f\u0648\u0642 \u062a\u062c\u0645\u064a\u0639 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 \u062f\u0645\u062c:<\/p>\n\n\n\n \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0627\u0644\u0645\u062e\u0635\u0635 \u0627\u0644\u0645\u0643\u0648\u0646 \u0645\u0646 200 \u0648\u062d\u062f\u0629\u060c \u062a\u0645 \u0628\u0646\u0627\u0621 \u0635\u0646\u0627\u062f\u064a\u0642 \u0627\u0644\u062a\u062c\u0645\u064a\u0639 \u062d\u0648\u0644 \u0628\u0646\u064a\u0629 16 \u0645\u062f\u062e\u0644 \/ 1 \u0645\u062e\u0631\u062c<\/strong> \u0645\u0639 \u0648\u0638\u0627\u0626\u0641 \u0627\u0644\u0645\u0631\u0627\u0642\u0628\u0629 \u0648\u0627\u0644\u062a\u062d\u0643\u0645 \u0639\u0646 \u0628\u0639\u062f \u0627\u0644\u0645\u062f\u0645\u062c\u0629.<\/p>\n\n\n\n \u064a\u062c\u0628 \u0627\u0644\u0646\u0638\u0631 \u0641\u064a \u062a\u0635\u0645\u064a\u0645 \u0645\u0635\u0641\u0648\u0641\u0629 \u0627\u0644\u062e\u0644\u0627\u064a\u0627 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 \u0639\u0644\u0649 \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0646\u0638\u0627\u0645. IEC 62548-1:2023+AMD1:2025<\/a> \u064a\u063a\u0637\u064a \u0645\u062a\u0637\u0644\u0628\u0627\u062a \u062a\u0635\u0645\u064a\u0645 \u0645\u0635\u0641\u0648\u0641\u0629 \u0627\u0644\u062e\u0644\u0627\u064a\u0627 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629\u060c \u0628\u0645\u0627 \u0641\u064a \u0630\u0644\u0643 \u062a\u0648\u0635\u064a\u0644\u0627\u062a \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0644\u0644\u0645\u0635\u0641\u0648\u0641\u0629\u060c \u0648\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629\u060c \u0648\u0627\u0644\u062a\u0628\u062f\u064a\u0644\u060c \u0648\u062a\u0648\u0641\u064a\u0631 \u0627\u0644\u062a\u0623\u0631\u064a\u0636.<\/p>\n\n\n\n \u0642\u062f \u062a\u062d\u062a\u0648\u064a \u0627\u0644\u0645\u0646\u0634\u0623\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 \u0639\u0644\u0649 \u0627\u0644\u0639\u062f\u064a\u062f \u0645\u0646 \u0633\u0644\u0627\u0633\u0644 \u0627\u0644\u062e\u0644\u0627\u064a\u0627 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 \u0627\u0644\u0641\u0631\u062f\u064a\u0629.<\/p>\n\n\n\n \u062a\u0648\u0644\u062f \u0643\u0644 \u0633\u0644\u0633\u0644\u0629 \u0637\u0627\u0642\u0629 \u062a\u064a\u0627\u0631 \u0645\u0633\u062a\u0645\u0631 \u0628\u0634\u0643\u0644 \u0645\u0633\u062a\u0642\u0644. \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u062a\u0648\u062c\u064a\u0647 \u0643\u0644 \u0633\u0644\u0633\u0644\u0629 \u0639\u0644\u0649 \u062d\u062f\u0629 \u0644\u0645\u0633\u0627\u0641\u0629 \u0637\u0648\u064a\u0644\u0629 \u0625\u0644\u0649 \u0639\u0627\u0643\u0633 \u0645\u0631\u0643\u0632\u064a\u060c \u064a\u0645\u0643\u0646 \u0644\u0635\u0646\u062f\u0648\u0642 \u0627\u0644\u062a\u062c\u0645\u064a\u0639 \u062a\u062c\u0645\u064a\u0639 \u062f\u0648\u0627\u0626\u0631 \u0633\u0644\u0627\u0633\u0644 \u0645\u062a\u0639\u062f\u062f\u0629 \u0641\u064a \u0646\u0642\u0637\u0629 \u0645\u0631\u0643\u0632\u064a\u0629 \u0648\u0627\u062d\u062f\u0629.<\/p>\n\n\n\n \u0646\u0645\u0648\u0630\u062c\u064a \u0635\u0646\u062f\u0648\u0642 \u0627\u0644\u062a\u062c\u0645\u064a\u0639 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a \u0627\u0644\u0645\u062e\u0635\u0635 \u0628\u0640 16 \u0633\u0644\u0633\u0644\u0629<\/strong> \u064a\u062a\u0628\u0639 \u0647\u0630\u0627 \u0627\u0644\u0647\u064a\u0643\u0644 \u0627\u0644\u0623\u0633\u0627\u0633\u064a:<\/p>\n\n\n\n \u0633\u0644\u0633\u0644\u0629 \u0627\u0644\u062e\u0644\u0627\u064a\u0627 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 1<\/strong> \u2193<\/p>\n\n\n\n \u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0633\u0644\u0633\u0644\u0629 \u0627\u0644\u0641\u0631\u062f\u064a\u0629<\/strong><\/p>\n\n\n\n \u2193<\/p>\n\n\n\n \u0642\u0636\u0628\u0627\u0646 \u0627\u0644\u062a\u0648\u0635\u064a\u0644 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0644\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0627\u0644\u0645\u0648\u062c\u0628\u0629 \u0648\u0627\u0644\u0633\u0627\u0644\u0628\u0629<\/strong><\/p>\n\n\n\n \u2193<\/p>\n\n\n\n \u0645\u0641\u062a\u0627\u062d \/ \u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u062e\u0631\u062c \u0627\u0644\u0631\u0626\u064a\u0633\u064a \u0644\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631<\/strong><\/p>\n\n\n\n \u2193<\/p>\n\n\n\n \u062e\u0631\u062c \u062a\u064a\u0627\u0631 \u0645\u0633\u062a\u0645\u0631 \u0645\u062f\u0645\u062c \u0648\u0627\u062d\u062f<\/strong><\/p>\n\n\n\n \u2193<\/p>\n\n\n\n \u0639\u0627\u0643\u0633 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629<\/strong><\/p>\n\n\n\n \u064a\u062a\u0645 \u062a\u0648\u0635\u064a\u0644 \u0648\u0627\u0642\u064a \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0644\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0643\u0640 \u0641\u0631\u0639 \u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0628\u0627\u0644\u062a\u0648\u0627\u0632\u064a<\/strong> \u0648\u0641\u0642\u064b\u0627 \u0644\u0637\u0648\u0628\u0648\u0644\u0648\u062c\u064a\u0627 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629 \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0648\u0636\u0639\u0647\u0627 \u0641\u064a \u0633\u0644\u0633\u0644\u0629 \u0645\u0639 \u0645\u0633\u0627\u0631 \u0637\u0627\u0642\u0629 PV \u0627\u0644\u0639\u0627\u062f\u064a.<\/p>\n\n\n\n \u0641\u064a \u0627\u0644\u0648\u0642\u062a \u0646\u0641\u0633\u0647\u060c \u064a\u0645\u0643\u0646 \u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u0627\u0633\u062a\u0634\u0639\u0627\u0631 \u0648\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0625\u0634\u0627\u0631\u0629 \u0625\u0631\u0633\u0627\u0644 \u0645\u0639\u0644\u0648\u0645\u0627\u062a \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0625\u0644\u0649 \u0648\u062d\u062f\u0629 \u0627\u0644\u0645\u0631\u0627\u0642\u0628\u0629.<\/p>\n\n\n\n The term 16-input 1-output<\/strong>, \u0623\u0648 16-in 1-out<\/strong>, therefore means that sixteen separate PV string circuits enter the combiner box and are consolidated into one outgoing DC circuit.<\/p>\n\n\n\n This architecture centralizes combining, protection, monitoring, and switching functions within one enclosure.<\/p>\n\n\n\n For a smaller example of the same combining principle, see KUANGYA’s 3-String 1-Output PV Combiner Box<\/a>, which integrates PV string protection, DC surge protection, and DC switching.<\/p>\n\n\n\n The exact internal configuration varies from project to project.<\/p>\n\n\n\n In this customized 200-unit project, the cabinet integrates several functional sections, including PV string fuse protection, DC busbars, surge protection, monitoring components, and a main DC switching device.<\/p>\n\n\n\n The incoming PV strings are protected using dedicated PV fuse holders and gPV fuse-links according to the project design.<\/p>\n\n\n\n The purpose of string-level overcurrent protection is to interrupt excessive reverse or fault current where the PV array configuration requires such protection.<\/p>\n\n\n\n PV fuse-links are specifically designed for photovoltaic DC circuits.<\/p>\n\n\n\n IEC 60269-6<\/a> provides supplementary requirements for fuse-links used to protect photovoltaic strings and photovoltaic arrays.<\/p>\n\n\n\n When selecting a PV fuse, engineers should consider parameters such as:<\/p>\n\n\n\n For a more detailed explanation of PV fuse selection and combiner-box applications, see DC Fuse Applications in Solar Combiner Boxes<\/a>.<\/p>\n\n\n\n After the individual string circuits pass through the required protection components, they are collected on the DC busbars.<\/p>\n\n\n\n The busbars form the main electrical combining point inside the enclosure.<\/p>\n\n\n\n Instead of sixteen independent output circuits continuing downstream, the string currents are combined into a common DC output circuit.<\/p>\n\n\n\n For a higher-current PV combiner box, factors such as the following must be considered:<\/p>\n\n\n\n The busbar is therefore not simply a metal connection strip. It is an important current-carrying component of the complete combiner-box assembly.<\/p>\n\n\n\n PV installations can be exposed to transient overvoltages caused by lightning-related electromagnetic effects and switching events.<\/p>\n\n\n\n \u0627\u062e\u062a\u064a\u0627\u0631\u0647 \u0628\u0634\u0643\u0644 \u0635\u062d\u064a\u062d \u062c\u0647\u0627\u0632 \u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 (DC SPD)<\/strong>, or DC SPD, can therefore form part of the PV system’s surge-protection concept.<\/p>\n\n\n\n An important point is that the SPD is not installed in series with the normal PV operating current<\/strong>.<\/p>\n\n\n\n Instead, it is connected in parallel according to the required protection topology.<\/p>\n\n\n\n Under normal operating conditions, the SPD remains in a high-impedance state. When a transient overvoltage occurs, it responds by providing a lower-impedance path for surge current and limiting the transient voltage appearing across protected equipment.<\/p>\n\n\n\n IEC 61643-31<\/a> applies to SPDs intended for surge protection on the DC side of photovoltaic installations rated up to 1500 V DC.<\/p>\n\n\n\n\u0625\u062c\u0627\u0628\u0629 \u0633\u0631\u064a\u0639\u0629<\/h2>\n\n\n\n
\n
![\"16](\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/16-input-1-output-pv-combiner-box-interior-1024x683.jpg\")
\u0627\u0644\u0648\u062c\u0628\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n
\n
\u0645\u0627 \u0647\u0648 \u0635\u0646\u062f\u0648\u0642 \u062a\u062c\u0645\u064a\u0639 \u0627\u0644\u062e\u0644\u0627\u064a\u0627 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 \u0630\u0648 16 \u0633\u0644\u0633\u0644\u0629\u061f<\/h1>\n\n\n\n
\u0633\u0644\u0633\u0644\u0629 \u0627\u0644\u062e\u0644\u0627\u064a\u0627 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 2<\/strong>
\u0633\u0644\u0633\u0644\u0629 \u0627\u0644\u0623\u0644\u0648\u0627\u062d \u0627\u0644\u0634\u0645\u0633\u064a\u0629 3<\/strong>
…<\/strong>
\u0633\u0644\u0633\u0644\u0629 \u0627\u0644\u0623\u0644\u0648\u0627\u062d \u0627\u0644\u0634\u0645\u0633\u064a\u0629 16<\/strong><\/p>\n\n\n\n![\"16](\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/16-string-pv-combiner-box-working-diagram-1024x576.jpg\")
What Is Inside a 16-String PV Combiner Box?<\/h1>\n\n\n\n
1. PV String Fuse Holders<\/h2>\n\n\n\n
![\"PV](\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/pv-string-fuse-holders-16-string-combiner-box-1024x683.jpg\")
\n
2. Positive and Negative DC Busbars<\/h2>\n\n\n\n
\n
3. DC Surge Protective Device<\/h2>\n\n\n\n
![\"DC](\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/dc-spd-parallel-connection-pv-combiner-box-1024x576.jpg\")
![\"PV](\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/pv-combiner-box-monitoring-system-diagram-1024x576.jpg\")
![\"PV](\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/pv-combiner-box-monitoring-remote-control-1024x576.jpg\")