You have no items in your shopping cart.
Solar power combiner box supports up to four PV array inputs (strings), with each string capable of handling a maximum current of 15A. The combiner box is equipped with 20A fuses for each PV array to ensure safe operation and protection against overcurrents. Each PV array connection is designed for a cable size of 4mm², with PG7 cable glands, ensuring a secure and reliable connection. The photovoltaic combiner box offers flexible output options with either one or two output channels, supporting a maximum output current of 60A. The output for each circuit is facilitated through PG16 cable glands, accommodating a cable size of 10mm² per string. This string combiner box can handle a maximum output voltage of DC 1000V, It includes a DC output circuit breaker, Additionally, the unit comes with a built-in lightning protection device, safeguarding the system from voltage surges typically caused by lightning strikes.
Q1. What is the connection between PV grid-connected power and line numbering?
When the PV grid-connected power is 1KW, the required wire number is 2.5mm2; when the PV grid-connected power is 3KW, the required wire number is 4mm2; when the PV grid-connected power is 5KW, the required wire number is 6mm2. In addition, the PV grid-connected power is also related to the length of the cable, and when the length of the cable is more than 50 meters, the wire number needs to be increased in order to ensure the normal operation of the system.
Q2. Can I expand my solar system later by adding more strings?
Expansion is limited by the number of strings the combiner box can handle; for more than four strings, additional combiner boxes or a larger one may be needed.