B280 - 80Amp Circuit Breaker

B280 - 80Amp Circuit Breaker

The Siemens B280 circuit breaker is a dependable choice for protecting your electrical systems that need consistent 80 amp overcurrent protection in everyday commercial, residential, and light industrial applications. Built as a 2-pole breaker for 120/240VAC systems, the B280 helps guard circuits against overloads and short circuits before they can damage wiring or connected equipment. Whether it’s installed in a panelboard, load center, or distribution system, this breaker is designed to keep power systems operating safely and reliably. One reason electricians and maintenance teams continue to use the Siemens B280 is its straightforward bolt-on design. The secure connection helps provide solid performance over time while also making installation and replacement work more efficient in compatible Siemens equipment. Its 10 kA interrupting rating makes it well-suited for standard electrical distribution systems where dependable fault protection is important without moving into oversized or specialty breaker solutions. The compact Type BL design also works well in tighter panel spaces, especially during retrofit projects or panel upgrades where room can become limited.

Key Features and Benefits

• 80 amp molded case circuit breaker: Designed for dependable overcurrent protection in commercial, residential, and light industrial applications.
• 2-pole configuration for 120/240VAC applications: Suitable for standard low-voltage electrical distribution systems.
• Helps protect circuits from overloads and short circuits: Designed to help prevent damage to wiring and connected electrical equipment.
• Bolt-on mounting style: Provides a secure installation in compatible Siemens electrical equipment.
• 10 kA interrupting rating: Offers dependable fault protection for standard electrical distribution systems.
• Compact Type BL design: Works well in compatible Siemens equipment and helps maximize panel space.
• Suitable for branch and feeder circuit applications: Designed for a variety of electrical distribution uses.
• Commonly used in commercial, residential, and light industrial systems: Supports dependable protection across multiple environments.
• UL 489 listed: Built for low-voltage electrical distribution applications.
  

Technical Specifications

• Catalog Number: B280
  
• Manufacturer: Siemens
  
• Product Type: Molded Case Circuit Breaker
  
• Breaker Type: BL
  
• Amperage Rating: 80 Amps
  
• Number of Poles: 2 Pole
  
• Voltage Rating: 120/240 VAC
  
• Interrupt Rating: 10 kAIC
  
• Mounting Type: Bolt-On
  
• Application: Electrical Distribution
  
• Continuous Current Rating: 80A
  
• Standard: UL 489
  
• Product Dimensions:
  • Width: Approx. 3 in
  • Height: Approx. 2 in
  • Depth: Approx. 4 in
• Net Weight: 0.639 lb
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• UL 489 Standards: The Siemens B280 circuit breaker is manufactured to meet UL 489 standards for molded case circuit breakers used in low-voltage electrical distribution systems.
• Electrical Code Compliance: It is intended for use in properly designed electrical equipment and installations that comply with applicable electrical codes and standards.
  

Where It Works Best

• Commercial electrical panels
• Residential load centers and subpanels
• Branch circuit protection
• Feeder circuit applications
• Light industrial facilities
• OEM electrical equipment
• Electrical distribution systems
• Panel upgrades and retrofit projects
• Replacement installations in compatible Siemens equipment