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Industrial IP65 Solar On-Grid Management System For Combiner Boxes , DC 1000V


Solar-Log on-grid management system,professional solar on-grid management hardware and soft ware ,solar combiner boxes component and attachments


Quick Detail:


Solar-Log on-grid management system

Applicable to any power plant scale, 1 or 100 plants, private use or industrial use.


Provides maximum security and return on investment for solar photovoltaic power plants.


Key features:


1,Brings the benefits for owners and investors of power plants.


2,Promotes operational efficiency and maximizes the return on investment.


3,Minimizes risk of financial loss.


4,Reliable data record that is easy to maintain and highly beneficial for insurance claims.


5,Easy to use image display.


6,Compatible with all inverters.


7,the most flexible connectivity," plug and play".


8,Can centralize monitoring and manage multiple power plants and customers.


Solar-Log 200

The simple plant monitoring system for smaller house installations

Easy to install

The Solar-Log200 is designed without a built-in display. It is connected to the inverter using a RS485 interface; the data from the plant monitoring system is supplied to the local network or to the internet via an ethernet interface. The web-based software makes configuration especially simple. The Solar-Log200 is compatible with all popular inverter manufacturers.

Alarm function and performance comparison

No more losses due to unnoticed failure of individual strings or the entire plant: The Solar-Log200 sends out alarms automatically via email or SMS. Daily yield notifications are also possible. Furthermore, all status and error messages can be conveniently called up from any web-enabled PC.

As for all Solar-Log™ devices, the Solar-Log200 also contains web-based evaluation software. Performance data for individual strings can be compared as can output from other plants (optional).
Secure and upgradable

The Solar-Log200 possesses integrated memory for data logging. Furthermore all of the data can be saved manually on the local PC or automatically on a homepage. Subsequently incorporating it into an existing plant is no problem either: Data can be manually added or imported.

For the Solar-Log200 we offer a comprehensive range of accessories and enhancements. Applications for handheld PCs and iPhones offer additional possibilities for monitoring and presentation in mobile use.



Inverter communication


Bluetooth (BT)


WiFi (wireless LAN)


Bluetooth (BT) / WiFi (wireless LAN)


Powermanagement (PM+)


PM+ / WiFi






Central inverter SCB and SMB


Max. no. of inverters


Communication interface

1 x RS485 / RS422

recommended max. plant size

15 kWp

Max. cable length

max. 1000m


Plant monitoring


String monitoring (depending on type of inverter)


Inverter failure


Status of power monitoring


Status of fault


Connection of sensors (temp./wind)


Connection to Sensor Basic


E-mail and SMS alarm


Local alarm (pot.-free contact)


Yield forecast


Degradation calculation


Self-produced energy consumption: Digital electricity meter


Self-produced energy consumption: Control of ext. consumers





Integrated web servers


Graphic visualisation - PC local


Graphic visualisation - USB flash drive


Graphic visualisation - Internet


LED - status display


Display on device


Operation on device


Large display RS485/S0 impulse





S₀ in/out

+ / -

Ethernet network


USB flash device


Modem, analogue / GPRS(GSM) / DSL


Potential-free contact (relay)


Alarm contact (anti-theft)



General data


Network voltage / device voltage

115 V - 230 V / 12 V

Current consumption


Ambient temperature

-10°C to +50°C

Housing/dimensions (W x D x H) in cm

Plastic / 22,5 x 4 x 28,5


Wall -mounted

Protection level

IP 20 (only for interior use)

Connection to Solar-LogTM WEB


Multi-lingual (DE, EN, ES, FR, IT, NL,DA)


Memory, micro SD, 2 GB, Endless-loop data recording


Warranty cover age

5 years

1) Depends on inverter used and cable length. (Specifications may differ depending on device model)

Overview of all inverters supported by Solar-Log™ devices. For details on supported functions, click on your inverter model.

 According to the function, it will have a standard combiner box (SAB) and an intelligent combiner box (SCB).

According to different install environment, will have polycarbonate (PC) and steel box can be selected.

We choose raw materials strictly on quality first. All components comply with DIN and VDE standards.  They are high quality standardized components, and all adhere to the highest quality standards.


Key features:


1,CE, TUV, CQC certifications.


2,Meet outdoor installation requirements, IP65.


3,All components meet rated voltage DC1000 V system.


4,PV DC 1000V fuse and DC 1000V breaker.


5,Class(II) PV DC1000V SPD.


6,Monitor current of each string, total voltage, circuit breaker status, SPD status.


7,local display and read the data on background, can accurately identify the fault, location (only applicable to SCB-II)

PV DC power distribution box


Photovoltaic DC distribution cabinet is mainly used in large-scale photovoltaic power plants, used to connect photovoltaic inverters to the combination boxes, and can be used with common inverters.


Key features:


1,  With multifunctional monitoring instruments, it measures information such as current, voltage and power. Through the RS 485 communication interface, it is able to collect


information such as circuit breaker status and SPD status, as well as manage the DC distribution cabinets.


2,  Designed with lightning protection and an over-current protection function.


3,  Built with a reliable, durable and enclosed structure internal copper bar connection, it is convenient for the field wiring and easily maintained.


4, High-performance components from internationally recognized brands ensures the system's long-term viability.


5,Able to be customized according to customers’ specific requirements.



PV monitoring device SCBM series products


The PV monitoring device SCBM series is specially designed for use with Longmax    intelligent PV combiner box (SCB) and Longmax string monitoring box (SMB).  It is used to


monitor the running state of panel’s strings, measure the current of strings, voltage, sampling status of the SPD, status of the DC circuit breaker. Use relayoutput to drive


the external actuators. The device cannot only display therunning status of the equipment, but also connects the industrial equipment,computer and Solar-log to be a totally Monitoring system by the RS485 interface.


Key features:


1,Current measurement ability ranging from 8 to 16 to 32 strings.


2,Vertical installation, is thinner and saves more internal space in the combiner box.


3,Short thread type connection mode allows for easy installation and improved efficiency and reliability of the combiner box.


4,Easy -to-use interfaces allowing the Communication address, rate and parity bit.


5,All-circuit with high-voltage isolation design, safe and reliable.

PV blocking diode

It is a device mainly used between photovoltaic strings to SCB, to prevent Current flow around caused by voltage differences and reduce the lowering of voltage of the system after strings parallel connection in SCB. It can reduce safety loopholes and improve the generating capacity during the construction and after long running times of photovoltaic power plants.


Key features:


1, Rating voltage: 2000V.


2, Usings a high-quality chip with good temperature characteristics and current overload capacities.


3,Designed with the ability to self-cool, there is no need for additional equipment.


4,Created to be a small size and light weight.


5,High protection grade allows for easy use in all weather situations outdoors.


6,Easy install,can be directly connectedbetween series PV cables. It is suitable for a new-construction or remodeled PV power plant.


7,Maximum forward current 20A and maximum reverse voltage 2200V.



Solar-Log professional monitoring and control system

Longmax SMB & Solar-Log 1000 – Monitors large-capacity photovoltaic power stations:


Many large-capacity power stations are not entirely monitored. Longmax   series monitoring box provides the appropriate tools to detect the status of strings and provide alarm


information. Longmax   SMB combining with Solar - Log ™ provides the best solution for upgrading to string monitoring. When the existing combiner box only connects strings


without monitoring them, Longmax   SMB is highly useful.


With Longmax   RS485 wireless set plant upgrades and string monitoring becomes more feasible.


Longmax   SMB consists of two parts:


1,Monitoring device (detection module - 16-way string measurement and communication module - RS485 interface).


2,Power module (direct from the strings, wide voltage input: DC200~1200V).


DC cabinet intelligent monitoring device PVBM series products

DC cabinet intelligent monitoring device PVBM series is specially designed for intelligent photovoltaic DC cabinets. They monitor current, DC voltage, status of circuit breakers


and SPD. The device can display data measured and collected through a local color touch screen, and have  RS485 communication interface also.


Key features:


1, LCD screen constructed of industrial-grade high-temperature variation material.


2,Uses a high-resolution color touchscreen, comprehensive display running status of systems and fault alarms.


3,External sensors use an open type current measurement method offering convenient maintenance and replacement.


4,Strong anti-interference ability, easy to install and highly durable.


5,Panel embedded installation



AC/DC Integrative Cabinet

Mainly used for commercial or small household solar systems, photovoltaic (PV) strings can be connecting to equipment DC input terminal, the equipment DC output connect to the inverter input terminal, connecting inverter AC output to the equipment AC input terminal, the equipment AC output connect to the AC user. The product is compact, safe, reliable, stable, durable and fashionable.


Key features:


1,Up to IP65 protection class, dust-proof, waterproof and all-weather features.


2,Designed with SPD and an anti-leakage protection system to maximize user safety.


3,Controls the over-current protection function, protects the grid inverter and ensures security of the power system.


4, Automatic shut-off function - in case of an emergency, it can quickly cut off the DC and AC power.


5,Fuse protection on DC and AC sides to better protect components and the safety of the electrical equipment.


6,DC side 2 -way DC10A, DC1000V input, AC side 16A, AC500V output.



Power quailty analyzer

Predominantly used in electrical power automation system Remote Terminal Unit

 (RTU’s), it is applicable tobelow 0.4 KV systeminput cable, bus coupler,output cable and inverter output power monitoring.  It can also be used as a power distribution system


of the multi-functional power analysis instrument. Main application fields include: medium and low voltage power distribution systems, intelligent switch plate arks, factory


automation systems, industrial machinery, equipment, energy management systems, intelligent buildings and photovoltaic inverter output power quality analysis.


Key features:


1,Adopts advanced valid values measurement methods and digital signal processing technology.


2,Applicable to non-linear load system power quality, such as harsh environment or systems with high-quality requirements of electrical power.


3,Perfect energy metering function, also suitable for electrical energy management or cost control.


4,Uses large screen blue backlit LCD display with clear image.


5,Installation is reliable and fast.



Longmax  RS485 wireless suite

Longmax   RS485 wireless suite can be installed in Longmax   intelligent PV combiner boxes, Longmax   intelligent DC cabinets, inverters and back-end servers of a power plant.


Communications of power plant equipment is no longer an issue as it can be connected easily and conveniently via Longmax   RS485 wireless suite.


In many cases, Longmax   RS485 wireless suite provides a useful alternative for photovoltaic power plants.


Key features:


1,Half-duplex communication, suitable for point-to-point and point-to-multipoint communication.


2,Able to support concurrent multi-channels with a variety of communication speeds.


3,Operates within line of sight, antenna height > 2 m, antenna gain 3 dbi, reliable transmission separation > 4000 m (BER = 10-5/9600 BPS).


4,Designed to be highly reliable, easy to install, light weight and small size.


The environmental monitoring instrument

The environmental monitoring instrument includes radiation sensors, temperature sensors and a wind sensor.


Key features:


1,the environmental monitoring instrument records variances between the possible and the actual power production levels and delivers key indicators relating to the quality of the system as a whole.


2,The Solar-Log™ continuously compares the yield data from the solar plant with the measurement results from the various sensors. If a variance exists, the Solar-Log™ generates


  PV Fuse holders
SPD Surge protection Device

DCDC Converter,data collecting card module,enclosure

PV fuse,fuse holder,cable,breaker,Cooper busbar

DC Cabinet intelligent monitoring device,wireless suite,environmental monitoring  String monitoring box ,Solar-log professional monitoring and control system,blocking diode,power quality analyzer


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