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.

Product Introduction：440V/690V LV Marine Main Switchboards are the core power distribution equipment in ship electrical systems, compliant with IEC 60092 standards. The 440V system is common on medium/small vessels, while the 690V system is primarily used on large ships and offshore platforms – reducing cable cross-sections by >50% and significantly lowering line losses and installation costs.

Parameter : 440V System/690V System
Rated Voltage :440V AC ±10%/690V AC ±10%
Rated Frequency : 60Hz/50Hz/60Hz/50Hz
Rated Current: 800A-6300A/400A-5000A
Short-circuit Breaking Capacity (Icw) :50kA-100kA (1s)/65kA-150kA (1s)
Protection Class :IP44/IP56 (Front/Enclosure)/IP44/IP56
Ambient Temperature : -25℃~+55℃/-25℃~+55℃

Product Overview： 15KV-10KV Medium Voltage (MV) Outgoing Feeder Switchgear is a key part of power distribution systems, controlling and protecting circuits up to 15KV (including 12KV/11KV/10KV). Compliant with IEC 62271 standards, these metal-enclosed units are used in industrial, commercial, and utility networks. They include circuit breakers, disconnectors, protection relays, and monitoring systems for safe, modular operation.

Rated Voltage : 10KV/11KV/12KV/15KV
Rated Current : 630A/1250A/1600A/2000A/2500A
Short-Circuit Breaking Capacity : 20KA/25KA/31.5KA/40KA
IP Rating : IP4X (Enclosure)/IP2X (Front Panel)
Insulation Medium : Air Insulation/SF6 Gas Insulation
Operating Mechanism :  Spring-Charged/Motorized/Manua

Product Overview：The Bus Tie Switchgear is a key component in medium-voltage (MV) power systems, connecting and isolating busbar sections. Rated for 10KV (IEC) to 15KV (ANSI), it ensures load balancing, power continuity, and quick reconfiguration during faults or maintenance. Compliant with IEC, GB, and ANSI standards, it’s widely used in industrial, commercial, and utility networks.

Rated Voltage : 10KV/11KV (IEC) | 12KV/15KV (ANSI)
Rated Current : 630A–4000A (copper busbar rating)
Short-Time Withstand : 25kA–50kA/1–3s
Power Frequency Withstand : 42KV/1min (12KV class)
Protection Class  :  IP4X (enclosure) | IP2X (compartments)
Mechanical Life : ≥10,000 operations (circuit breaker)

Scope of Application：he ZF-145 gas-insulated metal-enclosed switchgear (GIS) is an advanced high-voltage electrical equipment widely used in 145KV, 132KV, and 110KV power systems both domestically and internationally.

Rated Voltage: 145kV/132KV (international standard)/126kV/110KV (domestic standard)
Rated Current: 3150A (circuit-breaker), busbar current up to 4000A
Short-circuit Breaking Capacity: 40kA (rated short-circuit breaking current and rated short-time withstand current)
Peak Withstand Current: Up to 100kA
Mechanical Endurance: Over 10,000 operations
Arc Quenching Method: Self-extinguishing technology combining thermal expansion and assisted blowing

Product Introduction：This device is a key component in 10-15 kV power systems, distributing high-voltage electricity in substations while providing protection and control. Compliant with IEC/ANSI standards, it’s used in industrial, commercial, and utility networks.

Rated Voltage: 15kV ,12KV,11KV,10KV
Rated Current: 630A–4000A (configurable per load requirements)
Short-Circuit Breaking Capacity: 25kA–50kA (IEC standard)
Insulation Level: 28kV power frequency withstand/75kV lightning impulse
Ingress Protection: IP4X (enclosure)/IP2X (internal compartments)
Operating Mechanism: Spring-charged/motorized/manual

Scope of Application：Capacitor Bank Switchgear is designed for the safe switching, protection, and control of low-voltage (LV) and medium-voltage (MV) capacitor banks in industrial, commercial, and utility power systems. It ensures efficient reactive power compensation (RPC) to improve power factor, reduce energy losses, and enhance grid stability in compliance with IEC 60831, IEC 62271, and IEEE 18 standards.

LV Systems: 400V, 480V, 690V (50/60Hz)
HV Systems: 6.6kV, 11kV, 22kV, 33kV

Rated Current: 100A – 4000A (based on capacitor bank size)
Short-Circuit Withstand (IEC 62271): 25kA, 31.5kA, 50kA (1s or 3s)

Scope of Application：SF₆ gas-insulated switchgear (GIS) is designed for 3.6kV to 800kV AC power systems, covering medium voltage (MV), high voltage (HV), and extra-high voltage (EHV) applications. It is particularly suited for space-constrained installations and mission-critical environments (e.g., urban grids, rail transit, offshore wind farms, industrial plants, and extreme climates), complying with IEC 62271-200/203.

Medium Voltage (MV): 3.6kV, 7.2kV,11KV, 12kV, 24kV, 36kV
High Voltage (HV): 72.5kV, 145kV, 245kV
Extra-High Voltage (EHV): 362kV, 420kV, 550kV, 800kV
Rated Current: 400A–6,300A (up to 8,000A for HV/EHV)
Short-Circuit Breaking Capacity: 16kA–80kA (1s thermal withstand)
Insulation Medium: SF₆ gas (rated filling pressure: 0.4–0.7MPa at 20°C)