RSD switch Additional Info

Installer Memo - North America

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.