B350 - 50Amp Circuit Breaker

B350 - 50Amp Circuit Breaker

The Siemens B350 circuit breaker is designed to protect your three-phase electrical systems in commercial and industrial applications. Rated at 50 amps and 240VAC, this molded case circuit breaker helps protect circuits and equipment from overloads and short circuits that can damage electrical systems or interrupt operation. This Type BL breaker uses a thermal magnetic trip design that responds to both overload conditions and fault currents. The bolt-on mounting style provides a secure fit in compatible panelboards and distribution equipment, while the compact design helps conserve panel space. With a 10kA interrupting rating, the Siemens B350 is commonly used in HVAC systems, control panels, machinery, and general electrical distribution applications where dependable low-voltage circuit protection is needed.

Key Features and Benefits

• 50 amp molded case circuit breaker: Designed for commercial and industrial electrical systems.
• 3-pole configuration for three-phase systems: Suitable for three-phase electrical distribution applications.
• 240VAC voltage rating: Built for low-voltage electrical systems.
• Thermal magnetic trip protection: Helps protect against overloads and short circuits.
• 10kA interrupting capacity: Provides fault-current protection for electrical systems.
• Bolt-on mounting style: Provides a secure fit in compatible panelboards and distribution equipment.
• Compact design for panel installations: Helps conserve valuable panel space.
• UL 489 listed: Manufactured to meet recognized low-voltage electrical distribution standards.
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: B350
  
• Product Type: Molded Case Circuit Breaker
  
• Series: BL
  
• Amperage Rating: 50 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:
  • 2.563 in.
  • 3.00 in.
  • 3.122 in.
• Net Weight: 0.948 lb
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• UL 489 Standards: The Siemens B350 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
• Panelboards and switchboards
• Control panels
• Manufacturing equipment
• Motor control applications
• Three-phase electrical systems