TEYL3040B - 40Amp Circuit Breaker

TEYL3040B - 40 Amp Circuit Breaker

The TEYL3040B is a 40 Amp, 3-pole bolt-on thermal magnetic circuit breaker engineered to provide dependable overcurrent and short-circuit protection for your commercial and industrial electrical distribution systems. Designed as part of the TEYL series, this breaker features a non-interchangeable trip unit that delivers consistent circuit protection while helping you to maintain the integrity of your electrical system. Its bolt-on mounting design creates a secure connection to compatible panelboards, making it a practical choice for applications where reliable performance and long-term durability matter. Rated for 480Y/277VAC Class systems, the TEYL3040B is well suited for protecting your branch circuits serving lighting, power distribution, and other demanding electrical loads. With interrupting ratings of 65kA at 480VAC and 100kA at 240VAC, it offers the high fault current protection required in many commercial and industrial environments.

Key Features and Benefits

• 40 Amp Current Rating: 40 Amp current rating for dependable branch circuit protection.
• 3-Pole Configuration: 3-pole configuration for three-phase electrical systems.
• Thermal Magnetic Trip Mechanism: Thermal magnetic trip mechanism provides protection against both overloads and short circuits.
• Bolt-On Design: Bolt-on design helps ensure a secure, stable installation.
• Non-Interchangeable Trip Unit: Non-interchangeable trip unit maintains consistent protection characteristics.
• 480Y/277VAC Class Applications: Rated for 480Y/277VAC Class applications.
• High Interrupting Capacity: High interrupting capacity of 65kA at 480VAC and 100kA at 240VAC.
• Commercial and Industrial Applications: Designed for reliable performance in commercial and industrial power distribution systems.
  

Technical Specifications

• Part Number: TEYL3040B
  
• Series / Type: TEYL
  
• Circuit Breaker Type: Bolt-On Thermal Magnetic Circuit Breaker
  
• Trip Unit: Non-Interchangeable
  
• Poles: 3
  
• Current Rating: 40 Amps
  
• Voltage Rating: 480Y/277VAC Class
  
• Interrupting Rating:
  • 65kA @ 480VAC
  • 100kA @ 240VAC
• Dimensions:
  • Height: 5.25 in.
  • Width: 3.00 in.
  • Depth: 3.06 in.

Material Compliance and Certifications

• Industry Standards: The TEYL3040B is manufactured to meet applicable industry standards for molded case circuit breakers within its product class.
• Installation Guidance: Installation should always be performed in accordance with the National Electrical Code (NEC), applicable local electrical codes, and the manufacturer's installation requirements. Verify compatibility with the intended electrical panel and system before installation.
  

Where It Works Best

• The TEYL3040B is an excellent choice for commercial buildings, industrial facilities, institutional properties, and other three-phase electrical systems that require dependable 40 Amp overcurrent protection. It is commonly used to protect lighting circuits, mechanical equipment, HVAC systems, distribution panels, and other branch circuits where high interrupting capacity and secure bolt-on installation are important for maintaining safe and reliable electrical operation.