Can the old Series 300 (Automatic and Non-automatic) with Group 1 controller use the new Group G controller?

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Answer: Yes. Series 300 transfer switches that have the Group 1 controllers can be retrofitted with the Group G controller.

Purchase one of the Group G Controller Retrofit Kits below that matches the existing Series 300 transfer switch voltage rating.

Group G Controller Retrofit Kit Part Numbers

The Retrofit (Conversion) Kits include:

Group G Controller
Transfer Switch Dual Harness Adapter
Door controls to fit into original door opening (user interface & display and ribbon cable)
Group 1 to Group G Retrofit Kit Instructions
Group G Controller User’s Guide

Group 1 Group G Retrofit Transfer Switch Image Comparison

Group G Upgrade/Retrofit Kit User Interface and Display

Group 1 Group G - Covers removed - Image Comparison

Released for:Schneider Electric Canada

Published on:2022-02-18Last Modified on:2025-06-09

Can the old Series 300 (Automatic and Non-automatic) with Group 1 controller use the new Group G controller?

The Retrofit (Conversion) Kits include:

Group G Controller
Transfer Switch Dual Harness Adapter
Door controls to fit into original door opening (user interface & display and ribbon cable)
Group 1 to Group G Retrofit Kit Instructions
Group G Controller User’s Guide