These 3/4-Inch breaker snap on to the QO type bus bars
Product Description"SQUARE D HOMELINE" SINGLE POLE CIRCUIT BREAKER 30 Amp Single Pole Circuit Breaker 1 Space Per Pole 120VFrom the ManufacturerFormat 1"
Copper Wire Size #4-2/0 Awg
Eaton 1-Pole type BR combination arc fault circuit breaker has a current rating of 20-Amps
WIRE SIZE 4 TO 2/0 AWG (ALUMINUM/COPPER)
Mersen A2D-R Amp-Trap 2000 Time-Delay/Class RK1 Fuse with Visual Open Fuse Indicator, 250VAC/DC, 200kA AC/100kA DC, 400 Ampere, 2-1/16" Diameter x 8-5/8" Length These 3/4-Inch breaker snap onProduct DescriptionMersen Amp Trap 2000 SmartSpot A2D R fuses feature a visual open fuse indicator and provide IEC Type 2 No Damage protection to main, feeder, and branch circuits for all types of loads. With time delay characteristics for handling harmless in rush currents, current limiting ability, A2D R fuses give excellent protection for all your applications. Solid state SmartSpot visual blown fuse indicator. 600VAC and 600VDC dual rated Easy 2