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11.2

Rapid Shutdown (RSD)

The inverter includes a rapid shutdown system that complies with 2017 and 2020 NEC 690.12

requirements. A rapid shutdown switch should be connected to the RSD terminals on the inverter

and mounted on a readily accessible location outdoors (check with your AHJ for requirements).

Note: When using supported EG4 batteries in closed-loop communications with the inverter, the RSD also initi-

ates ESS Disconnect as required by NEC code.

11.2.1 External RSD

The system can also utilize an External E-Stop Switch if your AHJ

deems it necessary.

1. Type of External E-Stop Switch for RSD Require-

ments:

a. The external switch must have normally

closed contact type for emergency shut-

down.

1. If trying to utilize external E-Stop switch, please

see following subsection for instructions.

Location of RSD Terminals

In case of emergency, press the rapid shutdown

button to cut off the RSD power supply, in turn

cutting the inverter’s AC Output along with drop-

ping the PV Conductors voltage to <30V in 30 sec-

onds.

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