B120DFHH - 20A Dual Function Circuit Breaker
- 20 Amp
- 65kA @ 120/240VAC
- 1 Pole
Purchase Options: New In Box
B120DFHH - 20A Dual Function Circuit Breaker Description
B120DFHH - 20A Dual Function Circuit Breaker
If you’re looking for a smarter way to protect your electrical system without overcomplicating your panel, the B120DFHH dual function circuit breaker gets the job done. This isn’t just another breaker—it’s a two-in-one safety upgrade that combines both AFCI (Arc-Fault) and GFCI (Ground-Fault) protection into a single, compact unit. What does that mean for you? Fewer components, cleaner installs, and better protection against two of the most common electrical hazards—arc faults that can lead to fires, and ground faults that can cause serious shock risks. Whether you’re upgrading a residential panel or handling a commercial install, this breaker helps you stay compliant while giving you confidence that the circuit is properly protected. Built with a bolt-on design for a secure, stable connection, and backed by a high 65kA interrupting rating, the B120DFHH is ready to perform in demanding environments where reliability isn’t optional.
Key Features and Benefits
- Dual Function Protection – AFCI + 5mA GFCI in one breaker for complete circuit safety
- 20 Amp Single Pole Design – Ideal for standard branch circuits
- 65kA Interrupting Capacity – Handles high fault currents with confidence
- Bolt-On Mounting – Ensures a tight, dependable connection in panelboards
- Space-Efficient Solution – Combines two protective devices into one
- Reduced Nuisance Tripping – Designed for consistent, reliable operation
Technical Specifications
- Part Number: B120DFHH
- Poles: 1
- Amperage: 20A
- Voltage: 120/240VAC
- Interrupting Rating: 65kA
- Type: HBFGA2
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Dimensions:
- Height: 5.0 in
- Width: 1.0 in
- Depth: 3.0 in
- Mounting: Bolt-On
- Protection: Combination AFCI + 5mA GFCI
Material Compliance and Certifications
The B120DFHH is manufactured to meet strict electrical safety and performance standards, ensuring dependable operation in real-world applications. Products in this category are designed and evaluated to deliver safe interruption, consistent performance, and long-term reliability—key factors for any installation where safety and compliance matter .
Where It Works Best
- Residential upgrades – Kitchens, laundry rooms, bedrooms, and living areas
- Apartment & multi-family units – Where space and safety both matter
- Commercial panelboards – Offices, retail, and tenant improvements
- Remodeling projects – Bringing older systems up to current code
- Light industrial setups – Circuits that demand dependable fault protection
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.
Siemens®, I-T-E®, and Murray® are registered trademarks of Siemens AG. Products sold are surplus, used, or refurbished and are NOT supplied by Siemens AG or its affiliates.
Specifications
- Depth:3.0
- Height:5.0
- Width:1.0
- Poles:1
- Amperes:20
- A.I.C. Rating & Volts:65kA @ 120/240VAC
- Type:HBFGA2
- Approx Dimensions:1.00"W x 3.75"L x 3.00"D
- Additional Notes:Dual Function, Combination Type Arc-Fault Circuit Interrupter (AFCI) and 5mA GFCI, bolt-on Molded Case Circuit Breaker.
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
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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).