6 Installation Manual for PV Link
General Information
About PV Link
The PV Link is a nonisolated, interleaved DC-DC
converter that boosts PV input to a higher voltage and
outputs it to Rebus™, Generac’s regulated 380 VDC bus.
The PV Link provides droop-mode power management,
enabling multiple optimizers to connect in parallel on a
common bus, and its DC output carries a bidirectional
power line communication (PLC) protocol for
communicating with inverters and other devices on
REbus.
The PV Link is sealed in a type 3R enclosure at the
factory and is designed for attachment to standard PV
racking. Safety features include ground fault detection,
arc fault detection, and rapid shutdown capability.
GFCI Information
The PV Link’s internal ground-fault circuit interrupter
(GFCI) is designed to trip at 240 mA (± 40 mA) of PV DC
voltage ground current. Ground faults are displayed on
the Generac PWRcell Inverter control panel. The PV Link
meets the ground-fault protection requirements in NEC
Article 690.41(B).
AFCI Information
The PV Link is a Photovoltaic DC Arc-Fault Circuit
Protection Type 1 device that incorporates an internal arc
fault circuit interrupter (AFCI) and meets the Arc-Fault
circuit protection requirement in NEC Article 690.11.
PVRSS Information
PV rapid shutdown system (PVRSS) requirements have
evolved over time and are defined by the National
Electrical Code (NEC) in conjunction with UL 1741.
Determine what level of rapid PV shutdown is required
for your jurisdiction.
• The 2011 NEC and older editions do not require
PVRSS capability.
• The 2014 NEC requires rapid shutdown only on the
conductors leaving the PV array.
• The 2017 and 2020 NEC require rapid shutdown at
the PV module level and on the conductors leaving
array.
PV Link is a PV rapid shutdown system equipment
(PVRSE)
component within a PVRSS. It only provides
rapid shutdown for the conductors leaving the array.
SnapRS devices are required for PV module level rapid
shutdown. See PVRSS Compliance Guidelines for
more information.
Component Locations
009890
E
C
F
D
A
B
G
Figure 2-3. Component Locations
A Attachment Flange Slots
B Grounding Terminals
C REBus DC Nanogrid Output Negative (-) Lead
D REBus DC Nanogrid Output Positive (+) Lead
E PV Substring Input Negative (-) Lead
F PV Substring Input Positive (+) Lead
G MC4 Connectors
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