AC Main Circuit Breaker Panels Analog/Digital, all supplied with transducers, reverse polarity indicator, double pole mains input CBs with side lockout, digital meter shows volts, amps and frequency, LED wired to indicate live panel with mains breaker either on or off, AC source selector ensures no cross over between AC inputs (ship or shore power), AC voltage/frequency label to comply with ABYC Standards. With 8 outputs and 2 inputs.