Installation Manual

Introduction
6 900-0184-01-00 Rev A
Components
The primary component in the ICS Plus system is the DC combiner box. This combines up to six PV
source circuits and provides an overcurrent protective device (OCPD) for each circuit. The AFCI device
is located here.
The combiner provides a local disconnecting means. It also provides a contactor for PV rapid
shutdown functionality to de-energize PV circuits within 10 feet of the PV array.
Other components include:

Rapid Shutdown Initiator (RSI) which works with the combiner box to induce the rapid shutdown function

Relay-Trip Breaker (RTB) which physically opens the circuits near the charge controller(s)

Breaker control and power supply (BRK-CTRL-DC) which powers the RSI, RTB, and combiner
Packages
The ICS Plus has three prepackaged solutions for battery-based systems.
Table 1 Packaged Systems
Package ICSPLUS-1 ICSPLUS-2 ICSPLUS-3
FWPV6-FH600-SDA combiner 1 2 4
Compatibility
6 PV strings
1 charge controller
12 PV strings
2 charge controllers
24 PV strings
4 charge controllers
RSI Standard
BKR-CTRL-DC Standard
Relay-Trip Breaker PNL-75-DC-RT PNL-75D-DC-RT PNL-75Q-DC-RT