SquareD QO270 70A 120/240v 2P Miniature Circuit Breaker, Plug-In
Manufacturer Square D
Mfg Catalog # QO270
OneSource Part # 4644885
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.


  • Market-leading circuit protection — Designed for superior safety, quality, and reliability. Engineered with the quality and craftsmanship that have made Square D the preferred brand of electrician and homeowners
  • First-to-market innovation — First and only offer in the market to put the game changing Visi-Trip on all the circuit breakers for easy trip detection
  • Multiple applications — QO serves all your needs with wide range of products that serves single and three phase, high interruption ratings, and advanced function devices that offer superior Arc Fault, Combination Arc Fault (CAFI), and Ground Fault (Class A, GFCI), and Dual Function (CAFI and GFCI) Protection
  • Saves Space — Compact 3/4 inch width design for small system footprint
  • Faster installation — Fewer connections
  • Frees gutter space — No pigtails with the innovative Plug-on Neutral design
  • Easier troubleshooting — TIME SAVER Diagnostics provide additional circuit information at the touch of a button



Miniature circuit-breaker
70 A
120 V AC || 120/240 V AC || 48 V DC
HACR rated
Box lugs


5 kA || 10 kA
10 kA at: 120/240 V AC || 5 kA at: 48 V DC || 10 kA at: 120 V AC
AWG 8...AWG 2 (copper or aluminium)
3.12 in
2.91 in
1.5 in


UL listed || CSA
104 °F (40 °C)

Ordering and Shipping Details

00104 - QO 35-70A 1P;70-125A 2P CB

Offer Sustainability

Green Premium product
Compliant  - since  1323  -  Schneider Electric declaration of conformity
Need no specific recycling operations

Contractual Warranty

18 months


  • Residential & light commercial circuit protection
  • Commercial and Industrial circuit protection
  • Single phase and three phase applications
  • High Interruption rating capabilities
  • Overcurrent protection
  • Short circuit protection
  • Parallel and Series arc fault protection
  • Ground fault protection


Substitutes (0)

There are no available substitutes for this product.

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