4) While PEFS-PL80P-21 are used without PEFS-PLC-CN, connect each string of the rapid shutdown devices to the
solar inverter.
Push out the bracket of the rapid shutdown controller. Fix the rapid shutdown controller (PEFS-PLC-CN) on the wall.
•While PEFS-PL80P-21 are used with PEFS-PLC-CN, be sure that this photovoltaic rapid shutdown system
(PVRSS) incorporates one or more pieces of equipment that exercise the rapid shutdown control of PV
system conductors required by section 690.12 of the NEC (NFPA 70). other equipment installed in or on
this PV system may adversely affect the operation of this PVRSS. it is the responsibility of the installer to
ensure that the completed PV system meets the applicable rapid shut down functional requirements. this
equipment must be installed according to the manufacturer’s installation instructions.
•Installers should determine the installation location of rapid shutdown controller according to local
regulations.
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WARNING
3) Connect the outputs of all the rapid shutdown devices one after another.
Figure 4.5 Connecting Rapid Shutdown Device in Series
4.4 Installation of PEFS-PC
Panel-level Rapid Shutdown（PLC）
