21
IQ System Controller 2 Quick Install Guide
Aux wiring 1: System Shutdown Switch wiring
(compliance requirement)
The IQ System Controller 2 meets UL1741 PV RSE and NEC rapid
shutdown requirements for IQ8 Microinverters. The System
Shutdown Switch is the rapid shutdown initiator. The System
Shutdown Switch ensures a single point of initiation per NEC
2020. When turned o, the System Shutdown Switch will also
disconnect the battery from the system.
Aux wiring: System
Shutdown Switch
Section C - Wiring
Note: Control lines to headers support 28 AWG and 16 AWG wire gauges.
1234
1234
1 3
4 2
1234
1234
Wiring for systems with
non-IQ8 Microinverters
Wiring for systems with
IQ8 Microinverters
System Shutdown header System
Shutdown
header
System Shutdown Switch
Butt splice wire
connectors
Butt splice wire
connectors
12 AWG wires
16 AWG wires
12 AWG wires
16 AWG wires