QOB320 - Square D 20 Amp 3 Pole Bolt-On Circuit Breaker

QOB320 - Square D 20 Amp 3 Pole Bolt-On Circuit Breaker
QOB320 - Square D 20 Amp 3 Pole Bolt-On Circuit Breaker

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QOB320 - Square D 20 Amp 3 Pole Bolt-On Circuit Breaker

Regular price $316.44 Sale price $89.99 Save $226.45
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  • Inventory on the way
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  • FREE & fast shipping on orders over $49
  • 1 year warranty
  • 30 day returns

QOB320 - Square D Bolt-On 20 Amp Breaker

Square D Bolt-On Circuit Breaker 3-Pole circuit breaker has voltage rating of 240 VAC current rating of 20 Amps and short-circuit current rating of 10 kilo-Amps. Circuit breaker has interrupting current rating of 5 kilo-Amps at 48 VDC. The 3-Phase circuit breaker has three-spaces and mounting bolts to hold the breaker in place.


  • Product: Miniature circuit-breaker
  • Range: QO
  • Line Rated Current: 20 A
  • System Voltage: 120 V AC, 120/240 V AC, 240 V AC, 48 V DC
  • Mounting Type: Bolt-on
  • Number of Poles: 3P
  • Circuit Breaker Type: Standard
  • Ratings: HACR rated
  • Electrical Connection: Pressure plate
  • Number of Panel Spaces: 3
  • Wire Size: AWG 14...AWG 8 (copper or aluminium)
  • Height: 3 in
  • Depth: 2.91 in
  • Width: 2.25 in
  • Ambient Rating: 104 Degree F (40 Degree C)
  • Authentic Schneider Electric / Square D Product
  • Dimensions (H x W x L): 3" x 2.25" x 2.91"
  • 3 phase

Alt model: q0b320

Returns are easy

You may return items within 30 days of delivery for a refund.

View our return policy

FREE Shipping on orders over $49.

Simply Breakers offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

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In rare circumstances, Simply Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

All products carry a 1-year warranty from Simply Breakers. All of our breakers are authentic and factory new.

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Customer Reviews

Based on 14 reviews
Brian Blanton

The breakers were just as described. New condition, got here fast , and cost about 1/2 what the local supply house wanted. I will purchase again.

dennis mcneely
fair prices

just what i needed supply house didnt have these and wanted crazy money to get them thanks so much simply

Leonid Kogan

Very fast shipping. Good price. Will order more.


Excellent service and communication! Product exactly as expected!

Incredible after sale service.

i got a package problem and the crew never let me down. Took charge of the problem and 2 days after everything was resolve.
Thank you