TEYF3025B - 25Amp Circuit Breaker

TEYF3025B - 25 Amp Circuit Breaker

The TEYF3025B is a 3-pole, 25-amp Type TEYF bolt-on thermal magnetic circuit breaker designed to provide dependable overcurrent and short-circuit protection in commercial and industrial electrical distribution systems. Featuring a non-interchangeable trip unit, this breaker delivers consistent, factory-calibrated protection that helps safeguard branch circuits and connected equipment from damage caused by overloads and fault conditions. Built for 480Y/277V Class applications, the TEYF3025B combines reliable performance with the secure mounting of a bolt-on design, making it a practical choice for panelboards where vibration resistance and a solid electrical connection are important. Whether you're replacing an existing breaker during maintenance or completing a new installation, this circuit breaker offers the performance and durability professionals expect in demanding electrical environments.

Key Features and Benefits

• 25 Amp Current Rating: 25 Amp current rating for dependable branch circuit protection.
• Three-Pole Configuration: Three-pole configuration for protecting three-phase electrical systems.
• Bolt-On Mounting: Bolt-on mounting provides a secure installation and dependable electrical connection.
• Thermal Magnetic Trip Mechanism: Thermal magnetic trip mechanism responds to both sustained overloads and instantaneous short circuits.
• Non-Interchangeable Trip Unit: Non-interchangeable trip unit delivers factory-set protection without adjustable trip replacement.
• Interrupting Capacity: Interrupting capacity: 18kA at 480VAC and 65kA at 240VAC for reliable fault interruption.
• 480Y/277V Class: Designed for 480Y/277V Class electrical distribution systems.
• Commercial and Industrial Applications: Suitable for commercial, industrial, and institutional electrical applications.
  

Technical Specifications

• Part Number: TEYF3025B
  
• Type: TEYF
  
• Circuit Breaker Type: Bolt-On Thermal Magnetic
  
• Trip Unit: Non-Interchangeable
  
• Poles: 3
  
• Amperage: 25A
  
• Voltage Class: 480Y/277V Class
  
• Interrupting Rating: 18kA @ 480VAC; 65kA @ 240VAC
  
• Dimensions:
  • Height: 5.25 in.
  • Width: 3.00 in.
  • Depth: 3.06 in.

Material Compliance and Certifications

• Industry Standards: The TEYF3025B is manufactured to meet applicable industry performance standards for molded case circuit breakers. It is engineered for reliable overcurrent protection in electrical distribution systems.
• Installation Requirements: Always verify compatibility with your panelboard, electrical system, and local code requirements before installation. Installation should be performed by a qualified electrician and in accordance with applicable electrical codes and manufacturer guidelines.
  

Where It Works Best

• The TEYF3025B is well suited for commercial buildings, industrial facilities, office complexes, schools, healthcare facilities, retail spaces, and other three-phase electrical distribution systems operating on 480Y/277V Class power. It is an excellent choice for protecting branch circuits serving lighting, HVAC equipment, distribution panels, motors, and other critical electrical loads where dependable overcurrent protection and secure bolt-on installation are essential.