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Appendix B - SMART
Rapid Shutdown Slave
The Smart Rapid Shutdown Slave (SMART RSS) provides automatic disconnect functionality
for residential PV systems of 600VDC or less that full complies with the Rapid Shutdown
requirements of NEC 2014 Article 690.12 when installed according to these instructions. The
SMART RSS is compatible with the SolarCity H6 inverter.
The SMART RSS may be mounted either to the top of a standard mounting rail beneath a PV
module or indoors. NEC 690.12 requires the SMART RSS to be installed either:
• Outdoors: Within 10’ (3m) of the PV array.
• Indoors: With 5’ (1.5m) after entering the building.
The SMART RSS includes a single un-fused PV string input that can accept two (2) strings of
PV modules if a certified combiner box, appropriate UL/CSA listed 2-in-1 T-branch
connector, or equivalent is needed. The SMART RSS also include a single output with PV
connectors. From there, the DC output conductors are routed to the input terminal of the
SolarCity inverter. See
Figure 1-2
.
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