TEYF3080B - 80Amp Circuit Breaker

TEYF3080B - 80Amp Circuit Breaker

The TEYF3080B is a 3-pole, 80-amp bolt-on thermal magnetic circuit breaker for 480Y/277V class electrical systems. It combines thermal overload protection with magnetic short-circuit protection in a single breaker, making it a common choice for commercial and industrial power distribution. The bolt-on design provides a secure connection to compatible panelboards, while the non-interchangeable trip unit keeps the factory-installed trip rating fixed. This breaker has an interrupting rating of 18kA at 480VAC and 65kA at 240VAC. It is used in three-phase systems to protect feeders, branch circuits, lighting, HVAC equipment, motors, and other electrical loads from overcurrent conditions. Before installation, confirm that the breaker is compatible with your panelboard and application.

Key Features and Benefits

• 80 amp current rating: 80 amp current rating.
• Three-pole configuration: Three-pole configuration for three-phase circuits.
• Bolt-on mounting: Bolt-on mounting for compatible panelboards.
• Thermal magnetic trip mechanism: Thermal magnetic trip mechanism.
• Non-interchangeable trip unit: Non-interchangeable factory-set trip unit.
• Rated for 480Y/277V class systems: Rated for 480Y/277V class systems.
• Interrupting capacity: Interrupting capacity of 18kA at 480VAC and 65kA at 240VAC.
• Equipment protection: Helps protect electrical equipment from overloads and short circuits.
  

Technical Specifications

• Part Number: TEYF3080B
  
• Type: TEYF
  
• Poles: 3
  
• Amperage: 80A
  
• Trip Type: Thermal Magnetic
  
• Mounting: Bolt-On
  
• Trip Unit: Non-Interchangeable
  
• Voltage Class: 480Y/277V
  
• Interrupting Rating: 18kA @ 480VAC; 65kA @ 240VAC
  
• Dimensions:
  • Height: 5.25 in.
  • Width: 3.00 in.
  • Depth: 3.06 in.

Material Compliance and Certifications

• Manufacturing: This breaker is manufactured to meet its published electrical ratings for use in compatible electrical distribution equipment.
• Installation Requirements: Installation should follow the National Electrical Code (NEC), local electrical codes, and the equipment manufacturer's requirements. Verify compatibility before installation.
  

Where It Works Best

• The TEYF3080B is commonly installed in commercial buildings, manufacturing facilities, warehouses, schools, healthcare facilities, and other locations that use 480Y/277V three-phase power. It is suitable for protecting branch circuits, feeders, lighting panels, HVAC systems, motor circuits, and similar electrical loads.