9. RAPID SHUTDOWN / ESS DISCONNECT
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 master
inverter and mounted in a readily accessible location outdoors (check with the local AHJ for specific
requirements). For paralleled systems, the RSD needs only to connect to the master inverter. When the
switch is engaged, it will shut down all inverters in parallel past the master.
9.1 EXTERNAL RSD
The system can also utilize an External E Stop Switch if the local AHJ deems it necessary.
• The external switch must have normally open contact type for emergency shutdown.
• The external switch should be connected to the RSD terminals on the inverter and mounted
in a readily accessible location outdoors (check with the local AHJ for requirements).
• Wire the E-Stop Switch into the RSD terminals according to the switch’s specifications.
External RSD Wiring
NOTE:
When using supported EG4
®
batteries in closed loop communications with the
inverter, the RSD also initiates ESS Disconnect.
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