NGB3B080B - 80 Amp Circuit Breaker

NGB3B080B - 80 Amp Circuit Breaker

Upgrade your electrical system’s protection with the Siemens NGB3B080B — a dependable 3‑pole, 80-amp circuit breaker engineered for low‑voltage panelboards. This breaker employs a thermal‑magnetic trip unit that senses both overloads and short circuits, delivering a reliable shutdown when something goes wrong. Whether you’re powering a commercial building, manufacturing facility, or industrial plant, the NGB3B080B offers consistent and secure circuit protection you can rely on day after day.

Key Features and Benefits

• Thermal‑Magnetic Trip Unit: Combines thermal sensing for overload protection with magnetic sensing for instantaneous fault response, safeguarding your circuits effectively against varying types of electrical faults.
• High Interruption Capacity: Rated at 14 kAIC at 600Y/347V and 25 kAIC at 480Y/277V, this breaker can safely handle medium fault levels — ideal for commercial and industrial environments with demanding power loads.
• Load‑Side Lugs for Easy Wiring: Equipped with TC1GG20 load-side lugs supporting 8 to 1/0 AWG (copper or aluminum) wiring, making installation straightforward and ensuring strong, secure connections.
• 3‑Pole Configuration at 80 Amps: Provides balanced three‑phase protection for heavier loads, delivering consistent performance across all three phases of your system.
• Durable G‑Frame Design: Built with a UL‑listed NGB frame, the breaker delivers long-lasting resilience and dependable performance in demanding applications.
  

Technical Specifications

• Model Number: NGB3B080B | US2
  
• Ampere Rating: 80 A
  
• Number of Poles: 3
  
• Breaking Capacity:
  • 14 kAIC at 600Y/347V
  • 25 kAIC at 480Y/277V
• Dimensions:
  • Width: 3.0 inches
  • Height: 5.4 inches
  • Depth: 2.8 inches
• Weight: 2.615 lbs
  
• Wire Range (Load‑Side): 8 – 1/0 AWG (Copper or Aluminum)
  
• Termination: Load‑side lugs only (TC1GG20)
  

Material Compliance and Certifications

• UL Listed: Certified to meet rigorous Underwriters Laboratories safety and performance standards, giving you peace of mind that the breaker meets recognized quality benchmarks.
• RoHS Compliant: Manufactured in line with environmental standards to restrict hazardous substances, promoting safer usage and disposal.
• WEEE Directive Compliant: Designed for responsible end‑of-life recycling, aligning with global electronic waste regulations.
  
• Country of Origin: Mexico
  

Where It Works Best

• The Siemens NGB3B080B shines in low‑voltage panelboard installations within commercial complexes, industrial facilities, manufacturing plants, and large office buildings. Its 3-phase, 80 amp capability makes it a go-to for powering HVAC systems, motor loads, lighting panels, or heavy machinery. If you’re overseeing critical electrical distribution or upgrading an existing system, this breaker delivers consistent protection and dependable performance — a solid foundation for any facility’s electrical infrastructure.