TLB434400 - 400Amp Circuit Breaker

TLB434400 - 400 Amp Circuit Breaker

The TLB434400 circuit breaker is designed for your electrical systems that require dependable 400-amp protection in a three-phase setup. With a 3-pole design, this breaker is often used in commercial buildings, industrial facilities, and distribution equipment where steady power management is important. It helps protect circuits from overloads and short circuits while fitting into existing electrical systems that still rely on proven components. Simple, durable, and built for everyday use, the TLB434400 remains a practical replacement option for maintaining older equipment and keeping operations running smoothly without changing system layouts or configurations.

Key Features and Benefits

• 400 amp protection: Designed for commercial and industrial power systems that require dependable circuit protection.
• 3-pole breaker: Designed for three-phase applications commonly found in large electrical systems.
• Overload and short circuit protection: Helps reduce damage caused by overloads and short circuits.
• Existing equipment compatibility: Suitable for existing electrical distribution equipment where maintaining compatibility is important.
• Built for demanding environments: Constructed for long-term use in commercial and industrial applications.
• Replacement functionality: Designed for proper form, fit, and functional replacement needs.
  

Technical Specifications

• Part Number: TLB434400
  
• Poles: 3
  
• Amperes: 400A
  
• Type: Molded Case Circuit Breaker
  

Material Compliance and Certifications

• Application Guidance: The TLB434400 is intended for use in electrical distribution systems that require properly rated circuit protection components.
• Compliance Information: Compliance markings and certifications can vary by production series and application requirements. Always verify system compatibility and local code requirements before installation.
  

Where It Works Best

• This breaker is commonly installed in commercial properties, industrial facilities, service equipment, and electrical distribution panels that operate on three-phase power. It is especially useful for maintaining existing systems where matching specifications and compatibility are important.