B120HH00S01 - 20Amp Circuit Breaker

B120HH00S01 - 20Amp Circuit Breaker

When it comes to keeping your electrical system safe and running smoothly, the Siemens B120HH00S01 delivers exactly what you need. This 20-amp, single-pole breaker is perfect for commercial and industrial setups, protecting your circuits from overloads and short circuits without unnecessary interruptions. It comes with a factory-installed 120V shunt trip, so it can shut down automatically in emergencies—giving you an extra layer of safety for both equipment and people.

Built with HBL (Heavy Duty Branch Line) construction, this breaker is tough enough to handle demanding environments, yet its bolt-on installation keeps upgrades and maintenance simple. With a 65kA interrupting rating, it’s ready to handle high-demand circuits like motors, distribution panels, and branch lines without breaking a sweat.

Key Features and Benefits

• 20A single-pole breaker for reliable overcurrent protection
• Heavy-duty HBL design built for industrial and commercial use
• 65kA interrupting capacity for high-demand circuits
• 120V shunt trip for automated safety shutdowns
• Bolt-on installation for fast, secure setup
• Easy-to-read design for quick inspection and maintenance

Technical Specifications

• Catalog Number: B120HH00S01
• Voltage Rating: 120V AC
• Current: 20A
• Poles: 1
• Interrupting Rating: 65kA
• Mounting: Bolt-On
• Dimensions: 4” H x 4” W x 6” D
• Net Weight: 0.617 lb

Material Compliance and Certifications

• UL Standards: UL 489 listed for safety and reliability
• Durability: Durable construction for long-term use
• Compliance: Meets North American commercial and industrial standards

Where It Works Best

• Commercial and industrial panelboards
• Motor control centers
• Distribution panels that require automated shutdowns
• Upgrades or replacements of older breakers
• Environments where dependable overcurrent protection is critical

The Siemens B120HH00S01 is simple, reliable, and ready to protect your electrical system. It’s easy to install, easy to maintain, and built to perform in the toughest conditions—making it a smart choice for professionals who need dependable circuit protection every day.