A120 - 20 Amp Circuit Breaker

- 20 Amp
- 10k @ 120VAC
- 1 Pole
Purchase Options: New
A120 - 20 Amp Circuit Breaker Description
A120 - 20 Amp Circuit Breaker
The A120 20 Amp Circuit Breaker is your go-to solution for safe, reliable electrical protection in Challenger and T&B load centers. Its slim ½″ profile, left-side clip, and plug‑in design make it quick and easy to install. Backed by ETL listing and a solid 10,000 AIC rating, this breaker offers dependable performance in both residential and light commercial applications. It's also known by part number UBITBA‑120L, and serves as a direct replacement for the Crouse-Hinds MH120.
Key Features and Benefits
- Slim, space-saving build: At just ½″ thick with a left-side clip, it fits neatly into crowded panels, freeing up room for future expansion.
- Enhanced safety with ETL listing: Tested and certified to exceed industry standards—10,000 AIC for impulse protection gives you peace of mind.
- Hassle-free compatibility: Designed specifically for Challenger and T&B panels, it installs effortlessly and works seamlessly.
- Durable plug-in construction: The molded case and thermal-magnetic design deliver consistent protection against overloads and short circuits.
Technical Specifications
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Ampere Rating: 20 Amps
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Poles: 1‑Pole
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Clip Type: Left‑clip (power hook on non‑rejection side)
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Thickness: ½″ (13 mm)
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Interrupting Rating: 10,000 AIC
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Weight: 0.4 lbs (≈ 181 g)
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Dimensions:
- Width: 0.50 inches
- Length: 3.38 inches
- Depth: 2.63 inches
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UPC: 00094925021011
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Type: Thermal‑magnetic, plug‑in
Certifications & Compliance
- ETL Listing: The A120 is ETL listed—fully meeting or exceeding UL safety standards. Its molded housing and thermal-magnetic mechanism ensure long-lasting performance and reliable protection against electrical hazards.
Suitability
- Whether you're doing a fresh install or swapping in a replacement breaker, the A120 excels in Challenger and T&B load centers found in homes, garages, workshops, and light commercial settings. Its thin design fits crowded breaker spaces, and the left-side clip allows for easier access in tight electrical panels.
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. All trademarks and registered trademarks are the property of their respective owners.
Specifications
- Width:0.5
- Height:3.38
- Depth:2.63
- Poles:1
- Amperes:20
- A.I.C. Rating & Volts:10k @ 120VAC
- Type:A
- Approx Dimensions:0.50"W x 3.38"L x 2.63"D
- Additional Notes:Thin Type, Plug-In, Molded Case, Thermal Magnetic Circuit Breaker with "power hook" on the non-rejection side.
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE shipping on breaker orders over $100 and all other items with orders over $500.
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).