Skip to content
  • Product Image of QB20 - 20 Amp Circuit Breaker #1
** Picture is for identification purposes only and may not represent the actual amperage of the product listed **
scroll for more

QB20 - 20 Amp Circuit Breaker

  • 20 Amp
  • 10k @ 120VAC
  • 1 Pole
Circuit BreakersSKU: UBIZ20B

Purchase Options: New Aftermarket Replacement

Quantity
$45.00

QB20 - 20 Amp Circuit Breaker Description

QB20 - 20 Amp Circuit Breaker

Need a replacement Type QB breaker that matches an existing installation? The QB20 is a 20-amp, single-pole circuit breaker designed for compatible electrical panels that require this specific configuration. Rated at 120VAC with a 10 kA AIC rating, it provides the correct form and fit for applications where maintaining the original breaker specifications matters.

The QB20 measures 4.81 inches high, 0.75 inches wide, and 2.5 inches deep, making it a direct match for installations requiring these dimensions. It is available as either a refurbished factory original unit or a brand-new UB ETL Listed aftermarket replacement. The refurbished version is an original factory breaker prepared for continued service, while the new replacement option is made to fit the same space and serve as a compatible replacement.

When you are working on an existing electrical system, finding a breaker with the right amperage, pole configuration, and physical fit is important. The QB20 helps make that replacement process straightforward by matching the specifications required for compatible Type QB applications.

Key Features and Benefits

  • Provides the correct configuration for circuits requiring a 20-amp, one-pole breaker.
  • Intended for electrical applications requiring a 120-volt AC breaker.
  • Rated for 10,000 amps interrupting capacity at 120VAC.
  • Matches the style and dimensions needed for compatible Type QB breaker installations.
  • Fits the existing space where a QB20 specification breaker is required.
  • Choose a refurbished factory-original unit or a brand-new UB ETL Listed aftermarket replacement.
  • Made with materials intended for use in long-term electrical applications.

Technical Specifications

  • Part Number: QB20
  • Type: QB
  • Poles: 1
  • Amperage: 20 Amps
  • Voltage Rating: 120VAC
  • A.I.C. Rating: 10k @ 120VAC
  • Dimensions:
    • Height: 4.81 inches
    • Width: 0.75 inches
    • Depth: 2.5 inches

Material Compliance and Certifications

  • The brand-new QB20 replacement unit is a UB ETL Listed aftermarket breaker intended for compatible replacement applications. The refurbished unit is a factory-original breaker. As with any electrical component, confirm the breaker ratings and panel compatibility before installation.

Where It Works Best

  • The QB20 works best in existing electrical panels and systems that specify a Type QB, 20 amp, single pole breaker. It is commonly used for maintenance, repairs, and replacement projects where matching the original breaker size, rating, and configuration is required.

Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.

Eaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Edison®, Edison Fuse®, GTE Sylvania®, Crouse-Hinds®, and Cooper® are registered trademarks of Eaton Corporation plc. Products sold are surplus, used, or refurbished and are NOT supplied by Eaton Corporation plc or its affiliates.

Specifications

  • Width:0.75
  • Height:4.81
  • Depth:2.5
  • Poles:1
  • Amperes:20
  • A.I.C. Rating & Volts:10k @ 120VAC
  • Type:QB
  • Approx Dimensions:0.75"W x 4.81"L x 2.50"D
  • Additional Notes:The refurbished unit is a factory original item. The Brand New unit is a UB ETL Listed, after-market replacement designed to fit in the same space - discontinued by the manufacturer

Returns are easy

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

FREE ground shipping on breaker orders over $100 and all other items with orders over $500.

Shipping charges are Prepaid and Allowed on UPS Ground orders for all other products on orders over $500.00, again only when shipping within the lower 48 continental United States, provided the product(s) can safely ship UPS Ground.

If the product cannot safely ship via UPS Ground, or is too heavy to ship UPS Ground, then the product will be shipped via freightliner at buyer's expense.

CIRCUIT BREAKER SUPERSTORE® 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).

Same Day Shipping

We strive to ship out your items within one business day.

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

CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).

Similar Products

Why Us?

Free Shipping

Free shipping on breaker orders over $100*

100k+ Happy Customers

4.9 Google rating

Secure Shopping

Feel protected with every transaction