Product Specifications
/ Perfect Welding / Solar Energy / Perfect Charging
SLEEK DESIGN
/ Low-prole design that ts
underneath a module for clean
system look
/ Mounting bracket with multiple
mounting options for maximum
exibility
/ NEMA 4X rated for severe
outdoor conditions
EASY WIRING
/ MC connectors, spring load terminals
and generous wiring space
/ 25A rated inputs for up to two strings
per input (via MC4 “Y” connectors, not
included)
/ Rapid Shutdown Box replaces
your junction box
/ DC-powered: no extra power
supply needed
RAPID SHUTDOWN BOX
/ The new generation Fronius Rapid Shutdown Box (RSB) provides a convenient solution for NEC 2014 (690.12) and
NEC 2017 (Array Disconnect) compliance, while enhancing overall rooftop and firefighter safety. Low-profile design,
installer-friendly mounting and wiring, make the Fronius Rapid Shutdown Box the ultimate solution for all Fronius
SnapINverters* in systems up to 600 V. Directly connected to the inverter through the same conduit as the DC
homeruns and powered by the array, the Fronius solution minimizes the number of components and eliminates the
need for an external power supply.
/ The low-profile design allows for installation underneath the modules, ensuring a clean system look. Thanks to the
NEMA 4X rating, the box is built for severe outdoor conditions. MC4 connectors, spring loaded terminals and generous
wiring space make wiring our new generation Rapid Shutdown Box even easier. Rapid Shutdown is triggered when AC
is not present at the inverter, rapidly discharging the DC lines to the inverter. This allows for a seamless, code compliant
solution to the NEC requirement for rapid shutdown functionality for PV systems on buildings.
/ The convenient rapid shutdown solution for Fronius inverters.
AVAILABLE NOW: FRONIUS RAPID SHUTDOWN BOX DUO AND MULTI
AVAILABLE NOVEMBER 2017: FRONIUS RAPID SHUTDOWN BOX QUATTRO
* Excluding the Fronius Symo 15.0-3 208
SMALL NUMBER OF COMPONENTS
SAMPLE CONFIGURATION DUO
Combined strings must be an equal number of modules
Accessory Y-connectors not included
Activation wiring
DC wiring