Enphase IQ System Controller 3G 200A Grid-Side System Controller

About This Product

The Enphase IQ System Controller 3G 200A Grid-Side System Controller is the central control and interconnection equipment for compatible Enphase Energy Systems. Manufacturer model SC200G111C240US01 is designed for 240V grid-side installation and provides a 200A service rating. It includes an integrated Neutral Forming Transformer and supports generator interconnection, auxiliary-contact load control, and multi-mode system operation.

Who This Product Suits

This Enphase system controller is intended for professionally designed Enphase Energy System installations that require grid-side interconnection, backup power management, and coordination between the utility, compatible Enphase equipment, backed-up loads, and an optional generator. It is particularly suited to residential installations requiring a 200A grid-side system controller and should be selected and installed as part of a complete system design by a qualified installer in accordance with applicable NEC and local electrical requirements.

Specifications Explained

• Model: SC200G111C240US01.
• System controller: IQ System Controller 3G.
• Service rating: 200A.
• System voltage: 240V.
• Installation configuration: Grid-side installation.
• Neutral Forming Transformer: Integrated into the controller for supported backup operating configurations.
• Generator interconnection: Provides generator integration capability for compatible Enphase Energy System designs.
• Load control: Supports load management through an auxiliary contact.
• Operating capability: Supports multi-mode operation as part of a compatible Enphase Energy System.

Summary

The Enphase IQ System Controller 3G is a 200A, 240V grid-side system controller for compatible Enphase Energy Systems. It combines system interconnection and backup-power control with an integrated Neutral Forming Transformer, generator interconnection support, and auxiliary-contact load control. For installers building an Enphase backup system around the SC200G111C240US01 configuration, it provides the central equipment needed to manage supported grid and backup operating modes.

Further Information From The Manufacturer

IQ System Controller 3G, 200A, Grid side installation, includes Neutral Forming Transformer, with load control using aux contact, including Generator Interconnection, supports multi-mode, 240V voltage

About Enphase

Enphase is a global leader in microinverters and fully integrated solar-plus-storage ecosystems. Its U.S. product lineup includes microinverters, batteries, EV charging and advanced monitoring through the Enphase platform.

The brand is widely used in residential solar projects where module-level monitoring, flexible array design and strong installer support are priorities. Enphase systems are especially common in projects that value visibility, expandability and straightforward serviceability.