Scope of Application：High-Voltage PV Grid-Connection Switchgear is used at the grid connection points of large-scale or distributed PV systems. It acts as the central unit between the step-up transformer’s high-voltage output (typically 10kV–36kV) and the public grid, managing power transfer, providing protection, enabling real-time monitoring, and ensuring grid code compliance.

Rated Voltage (Ur): 10KV,11KV,12kV,17.5kV,24kV,33KV,36kV (Internationally prevalent levels);
Power Frequency Withstand Voltage (1 min): 28 kV (12kV system), 38 kV (24kV system), 70 kV (36kV system);
Lightning Impulse Withstand Voltage (BIL): 95 kV (12kV), 125 kV (24kV), 170 kV (36kV);
Rated Current (Ir): 630 A to 4000 A (Selected based on PV array capacity);
Rated Short-Time Withstand Current (Icw): 25 kA to 50 kA for 1s to 4s;

Application Scope:The PV DC combiner box is primarily used in photovoltaic (PV) power generation systems to combine, protect, and monitor multiple DC inputs from PV strings before delivering the consolidated output to inverters or DC distribution cabinets. It is suitable for centralized and string PV power plants, as well as commercial, industrial, and residential rooftop PV systems, ensuring safe and stable operation.

Selection Criteria
Number of Inputs: Determined by PV string configuration (e.g., 6-in, 8-in, 12-in, 16-in).
Rated Voltage/Current: Must match the PV module’s maximum open-circuit voltage (e.g., 1000V, 1500V) and input current per string (e.g., 10A, 15A, 20A).

Application Scope：The PV AC combiner box is used in photovoltaic systems to combine, protect, monitor, and distribute AC power from multiple inverters, ensuring safe and efficient transmission to the grid or load. It is suitable for commercial, industrial, ground-mounted, and residential PV systems.

Selection Criteria

RatedVoltage: Match grid voltage (e.g., 400V, 690V).
Rated Current: Total inverter output current + 20%-30% margin.
IP Rating: IP65+ for outdoor; IP20-IP54 for indoor.Ingress
Protection (IP) Rating: Overcurrent, short-circuit, surge, and residual current.
Communication: RS485/Modbus or wireless for remote monitoring.

Scope of Application:Low Voltage PV Grid-Connected Cabinet is designed for distributed PV systems, including commercial, industrial, and residential applications. It provides safe grid connection, power metering, protection, and monitoring to ensure stable PV system operation.

Rated Voltage: AC 230/400V
Rated Current: 63A/100A/160A/250A/400A/630A
Protection Level: IP65
Grid Connection Type: Single-phase/Three-phase
Communication Interface: RS485/Ethernet
Compliance Standards: IEC 61439, GB/T 15576