Fronius Rapid Shutdown Box Duo User Manual

Fronius prints on elemental chlorine free paper (ECF) sourced from certified sustainable forests (FSC).
/ Perfect Charging / Perfect Welding / Solar Energy
Rapid Shutdown Box - Duo
Rapid Shutdown Box - Quattro
Rapid Shutdown Box - Duo
Rapid Shutdown Box - Quattro
Rapid Shutdown Box - Duo
Rapid Shutdown Box - Quattro
EN-US
Installation instructions
Balance of System
FR
Instructions d'installation
Balance of System
ES-MX
Instrucciones de instalación
Balance of System
42,0410,2331 008-02122020

Fronius Rapid Shutdown Box Duo Specifications

General

Model	Rapid Shutdown Box Duo
Type	Rapid Shutdown Device
Number of Strings	2
Dimensions	11.81 x 7.87 x 3.15 in
Weight	3.3 lbs
Protection Class	IP65
Maximum Input Current	25 A
Maximum Output Current	25 A
Operating Temperature Range	-25°C to +60°C

Summary

Safety Precautions for Rapid Shutdown Box

FCC and RSS Compliance

Device Concept and System Limitations

Device Concept

Explanation of the Rapid Shutdown Box's function and compliance with electrical codes.

System Limitations

Key limitations including maximum number of boxes and signal loop resistance/length.

Maximum Distance to PV Array

Information on maximum cable lengths and reference to electrical codes for distance.

Technical Data

Inverter Compatibility

Service Code 307 on Snaplnverter Series

Service Code 1175 on GEN24 Inverter Series

Triggering and Resetting Rapid Shutdown

Triggering Methods

Explains AC failure and external switch methods for triggering rapid shutdown.

Performing a Reset

Steps to restart the PV system after a rapid shutdown event.

Installing the Rapid Shutdown Box

Possible Mounting Positions for Outdoor Use

Illustrates various allowed and disallowed mounting orientations for outdoor installation.

Drilling Pattern

Mounting the Rapid Shutdown Box - Duo on a Rail

Attaching the Rapid Shutdown Box to the Wall

Wiring of the Rapid Shutdown Box - Duo

Wiring of the Rapid Shutdown Box - Quattro

Connecting MC4-Y-Connectors

Connecting Several Rapid Shutdown Boxes

Connecting Wires to Terminals

Connecting RSB to SnapINverter

Connecting RSB to GEN24 Inverter

Connecting the Rapid Shutdown Box Grounding

SnapInverter: Connecting RSB to Emergency Stop Button

GEN24 Inverter: Connecting RSB to Emergency Stop Button

Connecting RSB to Fronius Primo 10.0-15.0

Connecting Strings to Fronius Primo 10.0-15.0

Connecting 5 Solar Module Strings

Wiring diagram for connecting five solar module strings to specific Fronius Primo inverters.

Connecting 6 Solar Module Strings

Wiring diagram for connecting six solar module strings to specific Fronius Primo inverters.

Connecting Strings to Fronius Primo GEN24 208-240

Connecting 4 Solar Module Strings

Wiring diagram for connecting four solar module strings to the Fronius Primo GEN24 208-240.

Connecting 5 Solar Module Strings

Wiring diagram for connecting five solar module strings to the Fronius Primo GEN24 208-240.