The Zhechi Electric® Waterproof PV Combiner Box which is made by China manufacturers to a junction box, which is an electrical enclosure that securely unites multiple wires and cables through various ports of entry. A solar combiner box combines the output of numerous strings of PV modules for connection to the inverter.
The Zhechi Electric® Waterproof PV Combiner Box For a large PV power generation system,In order to reduce the grid connection between the grid -connected inverter and the cabinet,It is convenient to maintain and improve the reliability.It is necessary to add a DC bus between the PV grid-connected inverter and the cabinet. PV AC lightning protection combiner box series products of the company is specially designed to meet this requirement ,Can be composed of PV inverter products matching with complete PV system solutions.Using AC combiner box ,the user can according to the AC power cabinet rated input current and voltage ,the output of a certain number of grid connected inverter by lightning protection device and circuit breaker for confluence,convenient access level power cabinet.
| Number | Parameter | Value |
| 1 | Size(MM) |
900x700x220(W*H*D) 900x743x220(W*H*D) |
| 2 | Rated input voltage (V) | 480V AC |
| 3 | Rated insulation voltage (V) | 690V AC |
| 4 | Rated frequency (Hz) | 50 |
| 5 |
Busbar rated current (A) Horizontal bus |
400A |
| 6 |
Rated short-time withstand current effective value lcw (1 sec) (KA) Horizontal bus |
30 |
| 7 |
Rated short-time withstand current maximum value lpk(KA) Horizontal bus |
30 |
| 8 | Power frequency withstand voltage for 1 minutes(V) | 2500VA |
| 9 | Temperature rise: Conforms to IEC 947-1 for temperature rise: and the temperature rise does not exceed the corresponding standard requirements of the component. | Terminals for external insulated conductors:not more than 70K,Busbar connection (copper-copper)Not more than 70K,Handle the surface of the insulation is not greater than 25K,Contactable shell and sheathing, metal surface is not greater than 30K. |
