PV Network Communication Box NCU
Ruitai is a professional manufacturer in China, we can offer PV Network Communication Box NCU. It integrates powerful edge computing and protocol conversion capabilities, along with tracking algorithms, multi-protocol communication, and remote monitoring functions. This ensures that large volumes of data can be transmitted to the cloud quickly and reliably, even in complex electromagnetic environments—helping improve solar energy efficiency and maintain stable operation under harsh weather conditions.
The PV Network Communication Box NCU is designed with full consideration for harsh outdoor environments, featuring excellent lightning protection, strong anti-interference performance, and wide temperature adaptability. If you want to get a customized solution, you can contact Ruitai.
Our NCU uses industrial-grade components and supports multiple standard industrial protocols such as Modbus and TCP/IP, enabling flexible compatibility with different brands of inverters and weather stations.
It enables millisecond-level command execution and real-time data transmission, supporting precise and responsive plant control. When integrated with Ruitai's SCADA platform, operators can remotely monitor and manage the entire site, significantly reducing communication failures and lowering overall O&M costs.
Product Design
The PV Network Communication Box (NCU) features an industrial-grade hardware design, ensuring stable, long-term operation in diverse and harsh environments.
Ingress Protection: Rated IP65 or higher, featuring a fully sealed, dustproof, and waterproof design.
Wide Operating Temperature: Operates within a range of -40°C to +70°C, making it suitable for extreme environments such as high-temperature deserts and regions with severe cold.
Dual Power Supply Design: Supports both DC and AC power inputs and includes a high-capacity backup lithium battery to ensure continuous operation during the night or in adverse weather conditions.
Industrial-Grade Components: The NCU utilizes industrial-grade chips, isolation circuitry, and component derating strategies; it has been validated through DFMEA and multiple rigorous tests.
Lightning Protection: Power and signal ports are equipped with surge protection, and the enclosure is connected to an equipotential grounding network.
Full Specifications Table
▷ Characteristic parameters
|
Product Model |
RT-COM-V1 |
High Wind Speed Trigger Threshold |
Adjustable |
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Power Supply |
L+N 220VAC |
Heavy Snow Trigger Threshold |
Adjustable |
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Parameter Setting |
PC |
Latitude and Longitude |
Automatically Obtained by GPS |
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Daily Power Consumption |
≤0.1kWh |
Time Zone |
Self-Setting |
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GPS Signal |
Yes |
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▷ Functional parameters
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Weather Sensor Alarm |
Yes |
Wireless Communication (with TCU) |
Yes |
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Communication Interruption Alarm (with TCU) |
Yes |
Communication Port |
RS485 / Ethernet |
|
GPS Module Fault Alarm |
Yes |
Wind Speed |
Yes |
▷ General parameters
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Housing Material |
Sheet Metal |
Size |
330*96*360mm |
|
Installation Method |
Clamping |
Operating Temperature |
-40~70℃ |
|
Waterproof Rating |
IP65 |
Altitude |
< 4000m |
|
Weight |
5.4kg |
||
Common Issues and Correct Practices for NCU Installation
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Common mistakes |
Consequences |
Best Practices |
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RS485 bus "T" branch |
Signal reflection, unstable communication |
Use a daisy-chain topology; install a repeater at branch points |
|
Both ends of the shielding layer are grounded at the same time |
Formation of ground loops, introduction of interference |
Ground the shield at one end only (NCU end) |
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Communication lines and power lines are laid in the same pipe |
Electromagnetic interference causing CRC checksum errors |
Maintain a minimum spacing of 30 cm; cross lines at a 90° angle |
|
No terminating resistor installed |
Signal reflection, communication failure at the terminal TCU |
Connect a 120Ω resistor in parallel at the farthest end of the bus |
|
Ground wire is too thin or too long |
Poor lightning protection, equipment susceptible to lightning damage |
Grounding wire: cross-section ≥ 6 mm², length ≤ 0.5 m |
|
Battery polarity reversed |
Burnout of the NCU power module |
Verify polarity with a multimeter before wiring |
|
Cabinet installation tilted |
Uneven pressure on the sealing strip, rainwater ingress |
Align using a spirit level; ensure tilt is ≤ 2° |
Why Choose Ruitai?
Customized Solutions: We follow a "One Project, One Solution" approach, designing communication architectures tailored to each project's solar resource conditions, site characteristics, and grid requirements.
Reliable and Stable Performance: Tested and proven in challenging environments including high-altitude regions, deserts, and coastal islands, our solutions deliver outstanding reliability and long-term operational stability.
Rapid Support and Maintenance: We provide real-time remote monitoring and intelligent diagnostics, helping customers detect faults faster, reduce operational downtime, and ensure smooth system performance throughout the project lifecycle.
FAQ
Q: Can this NCU operate reliably in harsh outdoor environments? What is its protection rating?
A: Absolutely. Our PV Network Communication Box NCU is designed to operate reliably in demanding outdoor environments, with strong lightning protection, anti-interference capability, and wide-temperature adaptability.
Rated IP65 and built with industrial-grade components, it delivers stable performance in extreme conditions, including high-altitude regions, deserts, and coastal areas. It also features overcurrent and surge protection to further enhance equipment safety and reliability.
Q: How many TCUs can it connect to? Which communication protocols does it support?
A: As the central communication hub of the solar plant, the NCU can easily connect hundreds or even thousands of TCUs to the central monitoring system.
It offers excellent protocol compatibility, supporting industry-standard protocols such as Modbus and TCP/IP, as well as ZigBee, Bluetooth, RS485, and MQTT.
This flexibility enables smooth integration with a wide range of inverters, weather stations, and other field devices.
Hot Tags: PV Network Communication Box NCU, solar network communication box, NCU communication box
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Contact Info
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Address
Building 10, Jiangsu Hainde High tech Industrial Park, No. 70 Yaofeng West Road, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province, China
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- ● Factory-Direct Pricing: No middlemen—you get competitive costs straight from our Suzhou plant.
- ● Fast Response: Our technical team replies within 24 hours with initial recommendations.
- ● Custom Solutions: We tailor TCU strategies, communication setups, and SCADA dashboards to your needs.
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