enphase IQ System Controller User Manual

TECHNICAL BRIEF - North America
Tech Brief on Enphase System Shut down
Contents
Contents ................................................................................................................................................... 1
1. Use Enphase System Shutdown for Bypass ................................................................................ 2
a) Working of the Enphase System Shut down ................................................................................. 3
b) Wiring the Enphase System Shut down ........................................................................................ 3
c) Enphase Energy System Shut down as Rapid Shutdown for PV ................................................. 4
d) Activating Enphase System Shutdown ......................................................................................... 5
e) Deactivating Enphase System Shutdown ..................................................................................... 5
2. System Controller Manual Override Procedure for servicing Enphase Energy systems
components ............................................................................................................................................. 5
3. Manual Transfer Switch for Bypass .............................................................................................. 7
4. Scenarios for using different switches ......................................................................................... 9

enphase IQ System Controller Specifications

General

Model	IQ System Controller
Grid Connection	Single Phase
Rated Output Power	Refer to specific model datasheet (e.g., IQ System Controller 2, IQ System Controller 3/3G)
Enclosure Rating	NEMA 3R
Operating Temperature Range	-40°C to +50°C (-40°F to +122°F)
Enclosure Environmental Rating	Outdoor
Surge Protection	Yes
Networking	Wi-Fi, Ethernet
Frequency	50/60 Hz
Communication	Zigbee (for communication with Enphase microinverters and batteries)
Compatibility	Enphase IQ Microinverters

Summary

Use Enphase System Shutdown for Bypass

Working of the Enphase System Shut down

Details the system layout and function of the Enphase Energy System shutdown switch.

Wiring the Enphase System Shut down

Explains the installation and wiring process for the Enphase Energy System shutdown switch.

Enphase Energy System Shut down as Rapid Shutdown for PV

Describes the system's role in meeting NEC rapid shutdown requirements for PV installations.

Activating Enphase System Shutdown

Provides instructions on how to activate the Enphase Energy System Shutdown switch.

Deactivating Enphase System Shutdown

Details the procedure for returning the Enphase Energy System Shutdown switch to its operational state.

System Controller Manual Override Procedure for servicing Enphase Energy systems components

Manual Override Procedure for System Controller 1

Step-by-step instructions for initiating and exiting manual override on System Controller 1.

Manual Override Procedure for System Controller 2

Step-by-step instructions for initiating and exiting manual override on System Controller 2.

Manual Transfer Switch for Bypass

Normal Mode Operation

Diagram and explanation of the manual transfer switch in its normal operating configuration.

Override Mode Operation

Diagram and explanation of the manual transfer switch when used for system override.

Scenarios for using different switches

System Shutdown Switch vs. Manual Override vs. Manual Transfer Switch

Compares applicable system controller versions, users, and scenarios for each switch type.