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/ Perfect Welding / Solar Energy / Perfect Charging
RAPID SHUTDOWN BOX
/ The convenient rapid shutdown solution for Fronius inverters.
EASY AND COST-EFFECTIVE NEC 2014 COMPLIANCE
/ The Fronius Rapid Shutdown Box (RSB) provides a convenient solution for NEC 2014 (690.12) compliance, while
enhancing overall rooftop and firefighter safety. Low-profile design, a small foot print 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 and
control button.
/ 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 easy. Rapid Shutdown is triggered when AC is not present at the inverter, rapidly discharging
the DC lines to the inverter. An optional method is to install an emergency stop button to open the signal loop.
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
SAMPLE CONFIGURATION DUO
Combined strings must be an equal number of modules
Accessory Y-connectors not included
EASY WIRING
/ MC4 connectors, spring loaded terminals and external equipment ground lug
make wiring easy
/ 25A rated inputs for up to two strings
per input channel (via MC4 “Y” connectors, not included)
SMALL NUMBER OF COMPONENTS
/ Rapid Shutdown Box replaces your
junction box
/ PV-powered: no extra power supply
needed
/ No additional control button needed
* Excluding the Fronius Symo 15.0-3 208
Activation wiring
DC wiring
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/ Perfect Welding / Solar Energy / Perfect Charging
v08 Aug 2017 EN
Text and images cor respond to the current sta te of technology at the ti me of printing. Subject to modi fications.
All inform ation is without guar antee in spite of careful e diting - liability exc luded. Copyright © 2011 Fronius™. Al l rights reserved.
Further information about all Fronius products and our global sales partners and representatives can be found at www.fronius.com
THREE BUSINESS UNITS, ONE GOAL: TO SET THE STANDARD THROUGH TECHNOLOGICAL ADVANCEMENT.
What began in 1945 as a one-man operation now sets technological standards in the fields of welding technology, photovoltaics and battery charging. Today, the
company has around 3,800 employees worldwide and 1,242 patents for product development show the innovative spirit within the company. Sustainable
development means for us to implement environmentally relevant and social aspects equally with economic factors. Our goal has remained constant throughout:
to be the innovation leader.
SAMPLE CONFIGURATION QUATTRO
Combined strings must be an equal number of modules
Accessory Y-connectors not included
Activation wiring
DC wiring
TECHNICAL DATA
GENERAL DATA RAPID SHUTDOWN BOX-DUO RAPID SHUTDOWN BOX-QUATTRO
Maximum voltage 600 VDC
Start voltage 80 VDC
Maximum input current 25A 25A/ 25A
Power Supply DC (from the PV array)
Typ. self-consumption during operation 2 W
Input Circuits- MC-4 1(2 if used with MC-4 Y connector) 2(4 if used with MC-4 Y connectors)
Max. number of strings 2 4
Max. output current 25A 25A/ 25A
Output circuits-Spring clips 1 2
Max. DC homerun wire size AWG 8
Max. communication wire size AWG 14
Number of conduit ports 2
Conduit size 3/4in. and 1in.
For use with Amphenol H4/other connectors Remove MC-4 connectors and replace with UL listed connectors
External hardware required Appropriate “Y” connectors if combining two strings
Permissible operating temperature range -40F to +149F (-40C to +65C)
Rel. humidity 0 ... 100% (non condensing)
Maximum installation elevation 13123 ft (4000m)
Enclosure Type Type 4X
Unit dimensions
11.3 x 9.7 x 2.8 inch
(286 x 246.5 x 71.5 mm)
Unit weight 4 lbs. (1.8 kg) 6 lbs. (2.7 kg)
Compliance UL1741; LTR AE-004-2015; FCC 15 Class B
Compatible inverters
** Note: If Fronius Rapid Shutdown Box is added to an existing system with a Fronius Primo 10.0 to 15.0, make sure that inverter software is up to date. Updates are available through software update
le version fro27350.upd and can be easily downloaded at www.fronius-usa.com/Primo-Update and installed via USB stick or remote update via Fronius Solar.web. Updates are available through
software update le version fro27350.upd and can be easily downloaded at www.fronius-usa.com/Primo-Update and installed via USB stick or remote update via Fronius Solar.web.
Fronius Galvo, Fronius Primo**, Fronius Symo (excluding the Fronius Symo 15.0-3
208) up to 600V
13.8 x 11.5 x 2.8 inch
(351 x 293 x 71.5 mm)
Fronius USA LLC
6797 Fronius Drive
Portage, IN 46368
USA
pv-support-usa@fronius.com
www.fronius.us/pv
M,06,0241,EN-US Version 1/10/19
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