info@kimaelectric.com
+86 199 4451 2191

Overview
The PV grid-connection cabinet is an outdoor integrated solution incorporating core components such as grid-connection circuit breakers, anti-islanding protection devices, reverse power flow protection devices, power quality monitoring meters, surge protective devices (SPD), and auxiliary power supplies. Featuring factory pre-assembly and modular design, it offers high reliability, intelligent protection, flexible deployment, and plug-and-play convenience. It is widely applicable in distributed PV power systems, commercial and industrial rooftop PV installations, residential PV systems, and other scenarios, ensuring safe, stable, and efficient grid integration of PV systems.
Technical Specifications
|
Rated Voltage |
Up to 0.69 kV |
|
Rated Current |
Up to 6300 A |
|
Rated Frequency |
50 Hz / 60 Hz |
Normal Operating Environment
Altitude: ≤ 2000 m (derating required above 2000 m)
Ambient Temperature: -25°C ~ +55°C (operating); -40°C ~ +70°C (storage)
Relative Humidity: 5% ~ 95% (non-condensing)
Protection Level: IP54 / IP55
Installation Environment: No severe vibration, no explosion hazard, and no gases or dusts that may corrode metals or damage insulation
Functions & Features
Highly Integrated: Integrates grid-connection, protection, metering, and monitoring functions into a standard cabinet, enabling plug-and-play and significantly reducing on-site installation time.
Safe & Reliable: Equipped with multiple protection functions including anti-islanding protection, reverse power flow protection, over-current protection, short-circuit protection, and surge protection, ensuring the safe and stable operation of both the PV system and the grid.
Intelligent Monitoring: Built-in multifunction power meter and intelligent communication module support remote monitoring, data acquisition, and fault diagnosis, enabling real-time tracking of power generation and grid-connection status.
Flexible Configuration: Circuit breaker specifications, protection functions, and communication interfaces can be flexibly configured according to project requirements, meeting grid-connection needs of various scales.
Technical Parameters
|
Item |
Unit |
Grid-Connection Circuit Breaker |
Protection & Monitoring Device |
Auxiliary Components |
|
Rated Voltage |
V AC |
400 / 690 |
230 / 400 |
230 / 400 |
|
Rated Current |
A |
630 / 1600 / 2500 / 3200 |
- |
- |
|
Breaking Capacity |
kA |
35 / 50 / 65 |
- |
- |
|
Protection Level |
- |
IP54 / IP55 |
IP20 |
- |
|
Communication Interface |
- |
- |
RS485 / Ethernet / 4G |
- |
|
Control Voltage |
V AC/DC |
230 / 400 |
230 / 110 / 24 |
230 / 24 |
Information Required for Inquiry or Order Placement
Please provide the following accurate information to facilitate our technical calculation and production scheduling:
|
Item |
Details Required |
|
Project Overview |
Project name, installation location, operating environment (e.g., altitude, max/min temperature, relative humidity, presence of corrosive gases or severe vibration, etc.) |
|
Product Model & Specs |
Specify the required PV grid-connection cabinet model, rated voltage (V AC), rated current (A) ,and Rated frequency (Hz). |
|
Circuit Breaker Config |
1. Rated current (A) 2. Breaking capacity (kA) 3. Number of poles (3P / 4P) 4. Control voltage (V) |
|
Protection & Monitoring |
1. Anti-islanding protection device: required or not, and specific model requirements 2. Reverse power flow protection: required or not, and specific model requirements 3. Multifunction power meter: brand, specifications, and measurement parameter requirements |
|
Appearance & Dimensions |
Specify enclosure material (e.g., stainless steel, galvanized steel with powder coating), color (provide color card number or RAL code), and overall dimension constraints (if any site limitations apply) |
|
Protection Level |
Specify the overall IP protection level requirement for the cabinet |
Key Technical Parameters & Configuration Requirements
|
Item |
Requirements |
|
Surge Protection Device (SPD) |
Specify SPD class (e.g., T1 / T2), maximum discharge current (Imax), and number of poles (e.g., 4P) |
|
Current / Voltage Transformers |
Specify CT transformation ratio, accuracy class (e.g., 0.5 / 0.5S), and quantity; specify PT specifications |
|
Monitoring & Communication |
Specify communication interface (e.g., RS485, Ethernet) and protocol (e.g., Modbus RTU/TCP, IEC 61850) |
|
Special Function Requirements |
If anti-condensation device, video surveillance, access control system, emergency lighting, etc. are needed, please specify in writing in advance |
Ordering Process & Precautions
|
Step |
Description |
|
Technical Agreement |
For non-standard products or complex projects, both parties must sign a detailed Technical Agreement before production scheduling, which shall serve as an annex to the contract with equal legal effect |
|
Drawing Confirmation |
We will provide cabinet outline drawings, foundation drawings, and single-line diagrams based on your requirements. Please sign and confirm promptly. Any schedule delays resulting from this shall be borne by the client |
|
Change Management |
After order confirmation and drawing sign-off, any technical or commercial changes must be submitted in writing and re-confirmed by both parties before execution. Cost increases or schedule delays caused by changes shall be borne by the requesting party |
|
Site Coordination |
Please ensure on-site foundation construction is carried out strictly according to our foundation drawings, with adequate space reserved for hoisting and transportation. If on-site installation guidance or commissioning services are required, please schedule in advance |
If you are looking for reliable power support for your project, please contact the Kima Electric team. We are ready to provide you with the best solutions.
Convenient Inquiry Process
You may contact us through various channels, including our website and email. You can also download and fill out the "Inquiry Application Form" from our official website, or provide your existing technical documents and drawings directly as the basis for requirement assessment. We will provide you with a quotation as soon as possible.
Production & Quality Control
Before formal production begins, we will provide detailed technical proposals including specification parameters and structural drawings for your review and confirmation.
We strictly implement the ISO quality management system, with comprehensive monitoring of raw materials, production processes, and finished product inspection to ensure stable and reliable quality for every customized product.
Delivery & After-Sales Service
Specialized packaging compliant with international standards, lined with high-performance moisture-proof and shock-absorbing materials, ensuring absolute safety during long-distance transportation.
Each shipment includes detailed user manuals, maintenance manuals, and related technical documentation.
Remote or on-site installation guidance and commissioning services are available upon request.
Comprehensive after-sales support including technical consultation, troubleshooting, and spare parts supply to ensure long-term stable operation of the equipment.
Kima Electric is a global brand under Anhui Jinma Electric Technology Co., Ltd.. and is a professional manufacturer of transformers &power transmission and distribution equipment in China. Established in 2001 and located in Wuwei, Wuhu City, Anhui Province, China ,the company occupies a facility spanning 93 mu (approximately 62,000 square meters) with a building area of 51,000 square meters and a professional team of over 180 personnel. With over 20 years of industry expertise, we have developed a comprehensive production system, rigorous quality control, and a culture of continuous innovation. We are committed to providing global customers with exceptional quality assurance and professional services.
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