IQ Load Controller Additional Info

Load and Solar Circuit Control using IQ System Controller Auxiliary Contacts
4 © 2021 Enphase Energy Inc. All rights reserved. December 16, 2021
Using the IQ Load Controller for load shedding
The Enphase IQ Load Controller, when used in conjunction with the IQ System Controller smart switch,
enables control of up to 2 loads or shedding of up to two solar circuits when operating in an off-grid mode
with the Enphase energy management system. To install the IQ Load Controller, read and follow all
warnings and instructions mentioned in the QIG provide with the product. Safety warnings are listed on
the back of the QIG. If you do not fully understand any of the concepts, terminology, or hazards outlined
in the instructions, refer installation to a qualified electrician or installer. These instructions are not meant
to be a complete explanation of a renewable energy system. All installations must comply with national
and local electrical codes. Professional installation is recommended.
Figure 2: Load Shedding systems
As shown in the diagram above, the IQ Load Controller can be used for shedding loads of up to 36A
running at 240Vac connected to a 45A breaker. It can also be used for shedding a 32A branch circuit
connected to a 40A breaker. Follow all the instructions in the QIG provided with the product to setup load
shedding on a site.