Reliance Controls TF151W Pro/Tran TF Transfer Switch

The Reliance Controls TF151W is a Pro/Tran TF Series standby power furnace transfer switch designed for 15 amp circuits. This hardware product allows homeowners to safely transition their furnace power from a utility line to a portable generator during power outages.

Reliance Controls Corporation has a long-standing history dating back to 1909, originally founded in Wisconsin. The brand is well-regarded for its expertise in manufacturing transfer switches, panels, and accessories for portable backup power applications. While many of their flagship products and engineering efforts remain centered in the United States, certain components or specific models are occasionally sourced or assembled through international supply chains to meet global demand.

The company remains a privately held family-owned entity based in Racine, Wisconsin. It has maintained its independence and specialized focus on the electrical and power management sector, avoiding acquisition by larger global electronics conglomerates through the year 2026.