Section 4: Pvrss Compliance Guidelines; 2011 Nec And Older Editions; 2014 Nec; 2017 And 2020 Nec - Generac Power Systems PV Link Installation Manual

Section 4: PVRSS Compliance Guidelines

2011 NEC and Older Editions

The 2011 NEC and older editions do not require any
PVRSS compliance. Installation that follows the instruc-
tions in this manual is all that is required.

2014 NEC

The 2014 NEC 690.12 introduced a new requirement for
PV systems that is commonly referred to as PV rapid
shutdown.
To meet 2014 NEC compliance:
1. Install the Generac PWRcell Inverter as specified
in the Generac PWRcell Inverter Installation Man-
ual.
2. Install the PV Link as specified in this manual.
3. Press the Shutdown button on the inverter control
panel for several seconds until the system de-ener-
gizes. See Safety Shutdown
NOTE: A remotely located external shutdown switch can
be an additional PVRSS initiator, if so equipped. See the
Generac PWRcell Inverter Installation Manual for more
information.
Rapid shutdown response time is less than 30 seconds.
Installation Manual for PV Link
for more information.
PVRSS Compliance Guidelines

2017 and 2020 NEC

The 2017 and 2020 NEC have PVRSS requirements
mandating the need to reduce voltages of controlled con-
ductors to less than 80 VDC within the array, as well as
some specification for the location of the PVRSS initiator
and its labeling.
To meet 2017 and 2020 compliance:
1. The 2017 and 2020 NEC requires the PVRSS initi-
ator be located at a readily accessible location out-
side the building.
• The DC disconnect under the Generac PWRcell
Inverter cover labeled PV can be used as the
PVRSS initiation device. This requires the inverter
to be mounted externally and in close proximity to
the utility meter.
NOTE: Provide signage indicating the PVRSS initiation
device is the REbus PV DC disconnect located under the
front cover of the inverter.
•
An externally mounted PVRSS initiation device is
required to be installed at a readily accessible loca-
tion when the Generac PWRcell Inverter is
installed within a one- or two-family dwelling unit.
NOTE: Provide signage indicating where the PVRSS ini-
tiation device is located.
2. Provide signage
690.565(C) of the NEC (NFPA 70), stating all
conductors are controlled.
3. Install the Generac PWRcell Inverter as specified
in the Generc PWRcell Inverter Installation Manual.
4. Install the PV Link to the PV array using a Generac
SnapRS™. These devices attach to module MC4
connectors between panels and allow the system
to achieve 2017 NEC and 2020 NEC 690.12 com-
pliance.
NOTE: Install one SnapRS to the negative whip (-) of
each PV module connected to the PV Link. See the Gen-
erac SnapRS Installation Manual for more information.
5. Install the PV Link. See
for more information.
Upon initiation of rapid shutdown, both inputs and out-
puts of the PV Link are controlled to be less than 80
VDC. Rapid shutdown response time is less than 30 sec-
onds, in accordance with section 690.12 of the NEC
(NFPA 70).
complying with section
Installation Guidelines
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