NEB1B080B - 80 Amp Circuit Breaker

NEB1B080B - 80 Amp Circuit Breaker

The Siemens NEB1B080B is a high-performance 80-amp circuit breaker built for demanding commercial and light‑industrial electrical systems. Designed for low-voltage panelboards, this single-pole breaker provides robust overcurrent protection through its dependable thermal‑magnetic trip mechanism and generous interrupting capacity. Whether you're wiring a new facility or upgrading an existing panel, the NEB1B080B delivers peace of mind — protecting your equipment and infrastructure from overloads and short circuits while ensuring safe, steady operation.

Key Features and Benefits

• Thermal‑Magnetic Trip Unit: Delivers accurate, dependable overcurrent protection — automatically responding to both overloads and short circuits for enhanced safety.
• High Interrupting Capacity: Rated for 22 kAIC at 347 V and 35 kAIC at 277 V, this breaker can safely handle high-fault conditions often encountered in commercial and industrial electrical systems.
• Load Side Lugs Included: Equipped with TA1EG10 lugs for secure connections, accommodating wire sizes from 8 AWG to 1/0 AWG (copper or aluminum).
• Compact, Space‑Saving Design: With a slim 1‑inch width and modest depth, the NEB1B080B installs easily in standard panelboards without crowding adjacent spaces.

Technical Specifications

• Amperage Rating: 80 A
  
• Voltage Rating: 347 V / 277 V
  
• Interrupting Capacity:
  • 22 kAIC @ 347 V
  • 35 kAIC @ 277 V
• Trip Type: Thermal‑Magnetic
  
• Frame Type: EG
  
• Dimensions:
  • Width: 1.0 in
  • Height: 5.5 in
  • Depth: 3.0 in
• Weight: 1.257 lb
  
• Load Side Wire Range: 8 AWG – 1/0 AWG (CU/AL), via TA1EG10 lugs
  

Material Compliance and Certifications

• Industry Standards: This breaker meets rigorous industry safety standards and is UL‑listed for compliance with North American electrical codes.
• Environmental Responsibility: It’s manufactured under strict quality controls to ensure dependable performance in both commercial and industrial settings. Additionally, the NEB1B080B is built with environmental responsibility in mind — constructed under guidelines that support take‑back and proper disposal practices.

Where It Works Best

• The NEB1B080B is an ideal choice for low-voltage panelboard installations in commercial buildings, light-industrial facilities, office complexes, retail spaces, and other settings requiring reliable, code‑compliant circuit protection. It excels as a main breaker or branch feeder within distribution panels, especially in environments where high fault currents — such as large motors, HVAC units, or heavy-duty lighting — are present. If you’re aiming for consistent performance, dependable safety, and long-term reliability in your electrical installation, this breaker is engineered to deliver.