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80V String Rapid Shutdown System

 Key Features :
  • PV module rapid shutdown meeting NEC 2017 & 2020 (690.12) requirements 
  • Bidirectional PLC communication 
  •  PV module monitoring: on/off status, temperature, voltage, current, power etc. 
  • Advanced monitoring: inverter performance, module shading, module degradation, soiling 
  • Series and parallel arc fault detection, protection and location
  • Leak/Ground fault detection and location


PV Rapid Shutdown System (PVRSS) is one of the essential protection elements of allotted photovoltaic system. Its essential characteristic is to limit the voltage of 30cm away from the PV module to beneath 30V inside 30s after the shutdown system is started.When the constructing the place the PV module is placed requires upkeep or firefighting, it can efficaciously forestall conceivable protection risks such as electric powered shocks, and defend the lives of protection personnel and firefighters.

System Components


PV Rapid Shutdown System (PVRSS) is ordinarily composed of the following PV speedy shutdown devices:

1. Tail Module(FR-PVMS-Txxx): A fast shutdown module with monitoring, which can shortly shut down the PV strings and transmit the records of the PV strings to the head module via the PLC signal.

2. Head Module(FR-PVMS-Hxx): Controls the tail module with the aid of the PLC signal, and transmit the facts to the fundamental controller by way of RS485.

3. Main Controller(FR-PVMS-Mxxx): Displays the energy and different data of the PV strings, and transmit the facts to the cloud platform at the identical time. Users can remotely manage it through the cellular telephone APP(SafeSolar).

Application Diagram


Key Technical Specifications

Component Model Item Parameter
Tail Module FR-PVMS-TSXX Input operating voltage range 12V-60V
Accuracy of voltage measuring ±0.2V
Maximum System Voltage 1500V
Output voltage after shutdown V(input)/100
Maximum cont. input current
Reverse current 25A
Accuracy of current measuring ±0.05A
Communication PLC
Communication capability, the
length of cable loop
Operating temperature 40℃~ +80℃
Enclosure Rating NEMA Type 6P/IP68
Safety Compliance UL 1741 (Ed.2, Rev. February 15, 2018),CSA
C22.2 No. 330-17






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