Reliance Prewired Generator Transfer Panel - 12 Circuits, 60 Amps, 125/250 Volts, 15,000 Watts, Model# TRC1006CP9 Expandable to 20 circuits by adding tandem circuit breakers Interlinked circuit breakers keep the generator isolated from the utility at all times Hardwire ready Dual watt meters monitor load on your generator Heavy-duty steel cabinet with steel door covering circuit breakers