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England NEC2020 90V RSD Device


    PV Rapid Shutdown System (PVRSS) is one of the crucial safety factors of disbursed photovoltaic system. Its quintessential attribute is to retain away from the voltage of 30cm away from the PV module to underneath 30V indoors 30s after the shutdown machine is started.When the placing up the shut by means of potential of the PV module is located requires safety or firefighting, it can efficaciously quit manageable protection dangers such as electric powered powered powered powered powered powered powered powered shocks, and shield the lives of protection personnel and firefighters. System Components


PV Rapid Shutdown System (PVRSS) is instead composed of the following PV swiftly shutdown devices:

1. Tail Module(FR-PVMS-Txxx): A unexpectedly shutdown module with monitoring, which can all at as quickly as shut down the PV strings and transmit the archives of the PV strings to the head module with the recommended resource of the PLC signal.

2. Head Module(FR-PVMS-Hxx): Controls the tail module with the useful resource of the PLC signal, and transmit the statistics to the predominant controller via performance of the utilization of RS485.

3. Main Controller(FR-PVMS-Mxxx): Displays the electrical electrical strength and one-of-a-kind information of the PV strings, and transmit the statistics to the cloud platform at the equal time. Users can remotely manipulate it by using potential of the smartphone APP(SafeSolar).

Key Features 

  • PV module fast shutdown meeting NEC 2017 & 2020 (690.12) necessities

  • Bidirectional PLC verbal exchange

  • 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 area

  • Leak/Ground fault detection and vicinity

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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