B380 - 80Amp Circuit Breaker

B380 - 80Amp Circuit Breaker

The Siemens B380 circuit breaker is designed for commercial and industrial electrical systems that need reliable everyday circuit protection. Rated at 80 amps and built for 240VAC applications, this 3-pole molded case circuit breaker helps protect your equipment and power distribution systems from overloads and short circuits before they create larger electrical issues.

Part of the Siemens Type BL series, the B380 uses a thermal magnetic trip mechanism that responds to both overload conditions and fault currents. Its bolt-on mounting design provides a secure connection in compatible panelboards and distribution equipment, while the compact size helps make installation and replacement work easier. The Siemens B380 is commonly used in commercial buildings, HVAC equipment, manufacturing facilities, and three-phase electrical systems where dependable branch circuit protection is important for daily operation.

Key Features and Benefits

• 80 amp molded case circuit breaker: Built for dependable circuit protection in commercial and industrial systems.
• 3-pole configuration for three-phase systems: Designed for three-phase electrical distribution applications.
• 240VAC voltage rating: Suitable for low-voltage electrical distribution systems.
• Thermal magnetic trip protection: Responds to overload conditions and fault currents.
• 10kA interrupting capacity: Helps protect electrical systems from fault-current events.
• Siemens Type BL design: Built for reliable everyday circuit protection.
• Bolt-on mounting connection: Provides a secure fit in compatible panelboards and distribution equipment.
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: B380
  
• Product Type: Molded Case Circuit Breaker
  
• Series: Type BL
  
• Amperage Rating: 80 Amps
  
• Number of Poles: 3
  
• Voltage Rating: 240VAC
  
• Interrupt Rating: 10kAIC
  
• Trip Type: Thermal Magnetic
  
• Mounting Type: Bolt-On
  
• Application: Electrical Distribution
  
• Standard: UL 489
  
• Dimensions:
  • Depth: 3 in.
  • Height: 3 in.
  • Width: 3 in.
• Net Weight: 1.058 lb
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• UL 489 Standards: The Siemens B380 circuit breaker is manufactured to meet UL 489 standards for low-voltage electrical distribution systems.
  

Where It Works Best

• Commercial buildings
• Industrial facilities
• HVAC systems
• Manufacturing equipment
• Three-phase electrical systems
• Panelboards and load centers
• Electrical distribution panels