Download eBooks & Wiring Diagrams (FREE)


eBook Item #7

120A Circuit Breaker

Brand: T Tocas

Product Description:

  • 120-Amp rating
  • Max voltage rating: 48V
  • Manual reset button for easy disconnect
  • Surface mount design


Frequently Bought Together

  • 2/0 AWG Wire – Connects the circuit breaker to the 12V fuse panel and the bus bar.
  • 1/4″ (M6) Lug Terminals – Crimps onto the 2/0 wire and attaches to the breaker.
  • 12V Fuse Panel – The breaker is wired to this fuse panel, which distributes the 12V power to all 12V devices. Learn more
  • Bus Bar – The breaker is also wired to this bus bar, which collects and distributes 12V from and to the batteries. Learn more
  • Hydraulic Lug Crimper – Crimps lug terminals onto the 2/0 AWG wire.

Where To Install The 120A Circuit Breaker

The 120A circuit breaker is commonly installed between the positive (red) bus bar and the 12V fuse panel. Refer to the image below to visualize where this breaker is placed.

2/0 AWG wire to connect bus bars to 12V panel

Need More Wiring Information? Download our Electrical Wiring eBook.

Technical Details

Current Rating


Max Voltage


Product Dimensions

2.83 x 1.81 x 1.22 inches


1/4" Stainless Steel Studs

Housing is thermalplastic UL rated 94V0

Scroll to Top