Pros, Join Our TradeMaster Program!
QO(B) circuit breakers come in plug-on or bolt-on options and a complete range of amperages and interrupting ranges to fit into various QO distribution panels. QO is the “World’s Finest” Industry leading offer since 1955, with features engineered for faster installation, reliability and quality.

  • Product: QO Miniature Circuit Breaker, Plug in
  • Range: QO
  • Current Rating: 20 A
  • Certifications: UL listed, CSA
  • Voltage Rating: 120/240 V AC, 240 V AC, 120 V AC, 48 V DC
  • Mounting Type: Plug-in
  • Number of Poles: 3
  • Circuit Breaker Type: Standard
  • Ratings: HACR and Switching Duty rated
  • Electrical Connection: Pressure plate
  • Wire Size: AWG 14...AWG 8 copper or aluminium
Read more
Manuals (1)
Product Type:
Circuit Breaker
Speak with a real person who will go out of their way to help!
Closed Now: Phone Hours
Monday – Thursday
8am–7:45pm ET
9am–7:45pm ET

Product Reviews

Product Q&A

Add-on Item

This item is cost-prohibitive to ship on its own but is available to ship with orders over $200.

Why don't we show the price of this item?

We try to always offer you the lowest prices possible, but some manufacturers require that we only show these low prices once you take further action.

To see the price, simply add the item to your cart or sign in.