TEYF3020B - 20Amp Circuit Breaker

TEYF3020B - 20 Amp Circuit Breaker

The TEYF3020B is a 20 amp, 3-pole thermal magnetic circuit breaker with a bolt-on mounting design for your compatible 480Y/277V Class panelboards. It protects branch circuits by automatically opening during overloads and short circuits, helping you to reduce the risk of damage to connected equipment. The fixed, non-interchangeable trip keeps the factory trip rating intact, making it a practical option for applications where the original protection settings need to remain unchanged. Rated to interrupt 18kA at 480VAC and 65kA at 240VAC, this breaker is commonly found in commercial and industrial electrical distribution systems. Its compact footprint also makes it a convenient replacement when servicing existing equipment that requires a TEYF-style breaker.

Key Features and Benefits

• 20 amp current rating: 20 amp current rating.
• Three-pole configuration: Three-pole configuration.
• Bolt-on mounting: Bolt-on mounting.
• Thermal magnetic trip protection: Thermal magnetic trip protection.
• Non-interchangeable trip unit: Non-interchangeable trip unit.
• 18kA interrupting rating at 480VAC: 18kA interrupting rating at 480VAC.
• 65kA interrupting rating at 240VAC: 65kA interrupting rating at 240VAC.
• Built for 480Y/277V Class systems: Built for 480Y/277V Class systems.

Technical Specifications

• Part Number: TEYF3020B
  
• Type: TEYF
  
• Poles: 3
  
• Amperage: 20A
  
• Trip Type: Thermal Magnetic
  
• Mounting: Bolt-On
  
• Trip Unit: Non-Interchangeable
  
• Voltage Class: 480Y/277V
  
• Interrupt Rating: 18kA @ 480VAC; 65kA @ 240VAC
  
• Dimensions:
  • Height: 5.25 in.
  • Width: 3.00 in.
  • Depth: 3.06 in.

Material Compliance and Certifications

• Installation Requirements: This circuit breaker is manufactured for use in compatible electrical distribution equipment and should be installed according to the National Electrical Code (NEC), local electrical codes, and the equipment manufacturer's recommendations.
• Compatibility: Confirm compatibility with your panelboard before installation.
  

Where It Works Best

• The TEYF3020B is commonly used in commercial buildings, industrial facilities, office buildings, schools and universities, healthcare facilities, lighting and distribution panels, and three-phase branch circuits.