TEYL3045B - 45Amp Circuit Breaker

TEYL3045B - 45 Amp Circuit Breaker

The TEYL3045B is a 45-amp, 3-pole bolt-on thermal magnetic circuit breaker engineered for dependable overcurrent and short-circuit protection in your commercial and industrial electrical distribution systems. Designed as part of the TEYL series, this breaker features a non-interchangeable trip unit, helping you maintain consistent circuit protection throughout its service life. With an interrupting capacity of 65 kA at 480 VAC and 100 kA at 240 VAC, it is well-suited for demanding applications requiring high fault-current protection. Its bolt-on mounting design provides a secure connection that helps you reduce movement and supports long-term electrical performance in compatible panelboards and load centers. Built for 480Y/277V Class systems, the TEYL3045B offers the performance and reliability professionals expect for protecting critical electrical equipment and branch circuits.

Key Features and Benefits

• 45 Amp Current Rating: 45 Amp current rating for dependable branch circuit protection.
• 3-Pole Configuration: 3-pole configuration for three-phase electrical systems.
• Bolt-On Design: Bolt-on design provides a secure, stable installation.
• Thermal Magnetic Trip Mechanism: Thermal magnetic trip mechanism delivers protection against both overloads and short circuits.
• Non-Interchangeable Trip: Non-interchangeable trip helps maintain consistent factory-rated protection.
• High Interrupting Capacity: High interrupting capacity of 65kA at 480VAC and 100kA at 240VAC.
• 480Y/277V Class Systems: Designed for use in 480Y/277V Class electrical distribution systems.
• Compact Footprint: Compact footprint helps simplify installation in compatible equipment.
  

Technical Specifications

• Part Number: TEYL3045B
  
• Series / Type: TEYL
  
• Circuit Breaker Type: Bolt-On Thermal Magnetic Circuit Breaker
  
• Trip Unit: Non-Interchangeable
  
• Poles: 3
  
• Current Rating: 45 Amps
  
• Voltage Rating: 480Y/277V Class
  
• Interrupting Rating (A.I.C.):
  • 65kA @ 480VAC
  • 100kA @ 240VAC
• Dimensions:
  • Height: 5.25 in.
  • Width: 3.00 in.
  • Depth: 3.06 in.

Material Compliance and Certifications

• Industry Standards: The TEYL3045B is manufactured for installation in compatible electrical distribution equipment and is designed to meet applicable industry performance standards for molded case circuit breakers.
• Installation Guidance: Always verify compatibility with your panelboard or load center and consult applicable local electrical codes and manufacturer documentation before installation.
  

Where It Works Best

• The TEYL3045B is an excellent choice for commercial buildings, industrial facilities, institutional properties, manufacturing environments, and other locations using 480Y/277V three-phase electrical systems. Its high interrupting capacity makes it especially suitable for installations where elevated available fault current demands dependable circuit protection, helping safeguard feeders, branch circuits, motors, lighting systems, HVAC equipment, and other critical electrical loads.