Boat part number 1005930 is a new old stock, 30 amp, AA2 series double toggle switch circuit breaker from Carling, part number AA2-X0-00-583-3G1-C .

This breaker switch measures approximately 1 1/2" W x 2" H x 2" D overall. Connects with (4) screw terminals. Rated for 80/277 volts (Max), 50/60 hz, and 40.5 trip amps.

Specifications:

Part Manufacturer: Carling
Series: AA2
Part Number: AA2-X0-00-583-3G1-C
Color: Black
Material: Plastic
Max Volts: 80/277
Hz: 50/60 DC
Trip Amps: 40.5
Overall Dimensions: 1 1/2" W x 2" H x 2" D
Connections: (4) Screw Terminals
Sold as seen in pictures. Customers please note every computer shows colors differently. All measurements are approximate.

Hardware and instruction / installation manual not included.