Page Loading...

Mouse over image to zoom, click to enlarge

QO and QOB one, two and three pole thermal magnetic circuit breakers provide overcurrent protection and switching on ac and dc systems. These circuit breakers have an overcenter, trip-free toggle mechanism with quick-make, quickbreak action and positive handle indication They also have VisiTrip trip indication, which provides a visual indication that the circuit breaker has tripped and interrupted the circuit. This QO miniature breaker is rated as 20 A, 120/240 V, and 1 pole. This unit provides 10 kA breaking capacity and plug in mounting. A full line of factory installed accessories, such as shunt trips, auxiliary switches and alarm switches, is also available QO breakers use a compact 3/4 inch width design for small system footprint. QO circuit breakers are UL Listed under UL File E84967 and are CSA Certified under CSA Master Contract 153555
Square D (Schneider)  /  QO120

QO mini breaker, 20 A, 1 pole, 120/240 V, 10 kA, plug in

SQD QO120 SP-120/240V-20A CB TOP 500 ITEM

SE Part Number: 35316

UPC:  78590140010

Part Number: QO120

UNSPSC: 39121603

Status:  STOCK

Your Price:  $11.79 / ea
Qty  eaAdd to Cart View Cart Checkout


Total Availabile: 6066 ea

Availability By Branch

  • Springfield, IL1566 ea
  • Bloomington, IL498 ea
  • Champaign, IL229 ea
  • East Peoria, IL628 ea
  • Danville, IL113 ea
  • Mt. Vernon, IL137 ea
  • Mattoon, IL213 ea
  • Peru, IL92 ea
  • Rockford, IL254 ea
  • Decatur, IL214 ea
  • Moline, IL10 ea
  • Carbondale, IL104 ea
  • Davenport, IA6 ea
  • Edwardsville, IL106 ea
  • CorporateB/O or Special Order
  • Quincy, IL229 ea
  • Hannibal, MO263 ea
  • Evansville, IN570 ea
  • Vincennes, IN676 ea
  • Terre Haute, IN158 ea

Offer Sustainability

  • Green Premium Status: Green Premium product
  • EU RoHs Directive: Under investigation
  • Mercury Free: Yes
  • Circularity Profile: No need of specific recycling operations
  • Halogen Content Performance: Halogen free product


  • Certifications: UL listed || CSA
  • Ambient Rating: 104 °F (40 °C)


  • Product: Miniature circuit-breaker
  • Range: QO
  • Current Rating: 20 A
  • Voltage Rating: 120/240 V AC || 120 V AC || 48 V DC
  • Mounting Type: Plug-in
  • Number Of Poles: 1P
  • Circuit Breaker Type: Standard
  • Ratings: HACR and Switching Duty rated
  • Electrical Connection: Pressure plate

Contractual Warranty

  • Warranty: 18 months

Ordering And Shipping Details

  • Category: 00004 - QO,QOT 10-30A 1P;10-60A 2P
  • Discount Schedule: DE2A
  • GTIN: 00785901400103
  • Package 1 Weight: 0.11 kg (0.25 lb(US))
  • Returnability: Yes
  • Country Of Origin: US


  • Inturrupt Rating: 10 kA 120/240 V AC 50/60 Hz || 10 kA 120 V AC 50/60 Hz || 5 kA 48 V DC
  • Number Of Panel Spaces: 1
  • Wire Size: AWG 14...AWG 8 copper or aluminium
  • Tightening Torque: 44.25 lbf.in (5 N.m) 0.02…0.04 in² (10…25 mm²) AWG 8...AWG 2)
  • Height: 76.20 mm (3 in)
  • Depth: 73.91 mm (2.91 in)
  • Width: 19.05 mm (0.75 in)
Time Zone 

Alternative Product Disclaimer

The online Cross-Reference Information presented on Springfield Electric's Website is proprietary and provided as a tool to determine potential equivalent catalog numbers. Catalog numbers of other manufacturers are shown for products that appear to be equivalent in their functional use, though not necessarily interchangeable. Product replacements/cross-reference may not be exact one-for-one match. They may not be equivalent as to form-fit-function requirements and may require a system replacement . Springfield Electric and the manufacturers recommend review of manufacturers' product literature, associated documentation of product details and verification of the information necessary to make the appropriate product selecting for a given application.