Outback ICS Plus Rapid Shutdown Initiator
The OutBack Power RSI (Rapid Shutdown Initiator) is the critical safety command center for the FLEXware ICS Plus system. Designed to meet NEC 690.12 requirements, this outdoor-rated control box provides a single point of operation to instantly de-energize your solar array in the event of an emergency.
It communicates directly with the ICS Plus combiner box to disconnect PV strings and provides clear visual feedback on the system’s status, including Arc Fault (AFCI) detection.
Why Choose the OutBack Rapid Shutdown Initiator
The RSI is not just a “kill switch”—it is an intelligent status monitor. While many rapid shutdown switches are simple mechanical disconnects, the OutBack RSI features active LED indicators that tell first responders exactly what is happening. It confirms whether the solar is live, safely shut down, or if an arc fault has been detected. It is the “brain” that makes the ICS Plus system fully compliant with modern NEC fire safety codes.
Frequently Asked Questions
Q1: Does this work with any combiner box?
No. The RSI is specifically engineered to work with the OutBack FLEXware ICS Plus Combiner Box (FWPV6-FH600-SDA). It sends a 24V signal to the specific contactors/relay-trip breakers inside that combiner to initiate shutdown.
Q2: Does it need a separate power supply?
Yes. The RSI requires a 24VDC Class 2 power supply to operate the LED lights and send the shutdown signal. In a complete ICS Plus kit, this is typically provided by the BKR-CTRL-DC module or a separate 24VDC adapter connected to the battery bank.
Q3: Where should I mount this?
Per NEC code, the Rapid Shutdown Initiator must be mounted in a “readily accessible” location outside the building, usually near the main utility meter or the inverter, so first responders can find it immediately.
Q4: What does the AFCI light mean?
If the “AFCI” LED is lit, the system has detected a dangerous electrical arc (sparking) in your DC wiring and has automatically shut down to prevent a fire. You must inspect the system and clear the fault before restarting.
Q5: Is this unit waterproof?
Yes, it is rated NEMA 3R, which means it is protected against falling rain, snow, and sleet. It is designed for outdoor installation.
If you have any questions about the item or your order, please feel free to message before purchasing. Thank you!

