This video is part 3 of a 3 part series detailing the step-by-step installation of the Reliance Controls Protran2 Manual Transfer Switch (MTS). In the video, we cover wiring AFCI/GFCI circuits and shared Neutrals (Multi-Wire Branch Circuits).
Arc-Fault Circuit Interrupters (AFCIs) are specialized circuit breakers designed to prevent electrical fires by detecting unintended arcing caused by damaged or loose wiring They are required in living areas, including bedrooms, family rooms, and hallways. Reliance requires the neutral to be wired in series between the two AFCI breakers. This requires installing "pigtail" AFCI breakers in the MTS and connecting the load neutral output (MTS) to the neutral input (pigtail) wire on the AFCI breaker in the main service panel.
Shared Neutrals or "multi-wire branch circuit" is a wiring method where two separate 120v hot wires (from opposite phases) share a single neutral wire. Careful consideration must be taken when moving these circuits to the MTS. Circuit pairs (red, black) must be located on opposite phases on the MTS to ensure the neutral is not overloaded.
👉 For the complete step-by-step installation guide, wiring diagrams, and full walkthrough,
see the full project article:
Reliance ProTran2 Manual Transfer Switch Project Guide