RSD switch Additional Info

Installer Memo - North America
3 © 2022 Enphase Energy Inc. All rights reserved. May 13, 2022
The cable header assembly will look like below and it can be found in the System Controller
LITKIT (or accessory bag).
6. How to safely wire the RSD switch to the IQ System Controller 2?
The Rapid shutdown terminals in IQ System Controller 2 (NC3 and NC4) carry a high voltage.
Installers MUST ensure that the IQ System Controller 2 is powered off before performing any
wiring. If IQ System Controller 2 is already energized, it should be completely discharged
before wiring the rapid shutdown switch. The instructions for discharging the IQ System
Controller 2 can be found in Annexure 1. For grid forming systems with IQ8 microinverters
follow below instructions when wiring the IQ System Controller 2 RSD terminal to the Enphase
System Shutdown Switch (EP200G-NA-02-RSD).
Before wiring, it is recommended that the terminal block for RSD wires in System Controller
be removed from the System Controller and plugged back in after the wiring is completed.
RSD terminal
Switch terminals
NC3
Terminal 1(+Ve)
Terminal 1
Terminal 2 (-ve)
Terminal 2
NC4
Terminal 3(+Ve)
Terminal 3
Terminal 4 (-ve)
Terminal 4
The actual Enphase System Shutdown switch is shown below with terminal numbers as
outlined above.