TEYD3045B - 45Amp Circuit Breaker

TEYD3045B - 45 Amp Circuit Breaker

The TEYD3045B is a 45 amp, 3-pole bolt-on thermal magnetic circuit breaker designed for protecting three-phase electrical systems from overloads and short circuits. Built for 480Y/277V Class applications, it features a fixed, non-interchangeable trip unit that maintains consistent protection throughout the life of the breaker. The bolt-on design provides a secure connection to compatible panelboards, making it a practical choice for replacement projects as well as new installations. With an interrupting capacity of 25kA at 480VAC and 65kA at 240VAC, the TEYD3045B is suited for a wide range of commercial and industrial applications where dependable circuit protection is required. Whether you're servicing a distribution panel, replacing a failed breaker, or performing scheduled maintenance, this breaker offers the electrical ratings professionals look for without unnecessary complexity.

Key Features and Benefits

• 45 amp current rating: 45 amp current rating.
• Three-pole design: Three-pole design for three-phase systems.
• Bolt-on mounting: Bolt-on mounting for a secure installation.
• Thermal magnetic trip: Thermal magnetic trip protects against overloads and short circuits.
• Non-interchangeable trip unit: Non-interchangeable trip unit with fixed protection settings.
• Interrupting rating: Rated 25kA at 480VAC and 65kA at 240VAC.
• Voltage class: Designed for 480Y/277V Class applications.
• Compact footprint: Compact footprint for use in compatible panelboards.

Technical Specifications

• Part Number: TEYD3045B
  
• Type: TEYD
  
• Poles: 3
  
• Amperage: 45A
  
• Trip Type: Thermal Magnetic
  
• Trip Unit: Non-Interchangeable
  
• Mounting: Bolt-On
  
• Voltage Class: 480Y/277V
  
• Interrupting Rating: 25kA @ 480VAC; 65kA @ 240VAC
  
• Dimensions:
  • Height: 5.25 in.
  • Width: 3.00 in.
  • Depth: 3.06 in.

Material Compliance and Certifications

• Commercial and Industrial Use: The TEYD3045B is manufactured for use in commercial and industrial electrical distribution systems. It is intended for installation in compatible equipment and should be installed in accordance with applicable electrical codes and manufacturer recommendations.
• Compatibility: Confirm compatibility with your panelboard and system requirements before installation.
  

Where It Works Best

• The TEYD3045B is commonly used in commercial buildings, industrial facilities, warehouses, schools, and other properties with 480Y/277V three-phase electrical systems. It is well suited for protecting lighting panels, HVAC equipment, motor loads, distribution circuits, and other branch circuits that require a 45 amp, three-pole bolt-on breaker.