The panel it is used to select between two 120/240V AC input sources to power 120/240V AC onboard electrical loads which are split between 2 physical output buses. 

• Switches between two 120V AC shore power sources and one 240V AC source to two 120V AC load groups
• Red reverse polarity LED indicators
• Green power available LED indicators

• Height	4.75in (120.65 mm)
  Width	4.88in (123.95 mm)
  Depth	4.50in (114.3 mm)
  Weight	3.50lb (1.59 kg)