TEYF2090B - 90Amp Circuit Breaker

TEYF2090B - 90 Amp Circuit Breaker

When dependable circuit protection is a priority, the TEYF2090B delivers the performance needed for demanding commercial and industrial electrical systems. This 2-pole, 90-amp thermal magnetic circuit breaker is designed for 480Y/277V Class applications and installs securely with a bolt-on connection for added stability inside compatible panelboards.

The thermal magnetic trip mechanism responds to both prolonged overloads and sudden short circuits, helping protect electrical equipment while supporting reliable system operation. A non-interchangeable trip unit keeps the factory-set protection intact, making it a practical choice for facilities where consistent circuit protection is essential. With interrupting ratings of 18kA at 480VAC and 65kA at 240VAC, the TEYF2090B is built to handle higher available fault currents found in many commercial and industrial environments.

Whether you're replacing an existing breaker during maintenance or outfitting a compatible electrical panel, the TEYF2090B offers the dependable protection professionals expect for everyday operation.

Key Features and Benefits

• 90-amp current rating: For higher-capacity branch circuits.
• Two-pole design: For 240V and 480Y/277V applications.
• Bolt-on mounting: Provides a secure installation in compatible panelboards.
• Thermal magnetic trip: Protects against overloads and short circuits.
• Non-interchangeable trip: Helps maintain the original protection settings.
• Interrupting rating: 18kA at 480VAC and 65kA at 240VAC.
• Compact design: Simplifies installation and replacement.
  

Technical Specifications

• Part Number: TEYF2090B
  
• Type: TEYF
  
• Poles: 2
  
• Amperage: 90A
  
• Voltage Class: 480Y/277V
  
• Interrupting Rating: 18kA @ 480VAC; 65kA @ 240VAC
  
• Trip Type: Thermal Magnetic, Non-Interchangeable
  
• Mounting: Bolt-On
  
• Dimensions:
  • Height: 5.25 in.
  • Width: 2.00 in.
  • Depth: 3.06 in.

Material Compliance and Certifications

• Molded case thermal magnetic circuit breaker: Intended for use in compatible TEYF-series panelboards and electrical distribution equipment.
• Industry Standards: Manufactured to applicable industry standards for molded case circuit breakers when installed according to manufacturer requirements.
  

Where It Works Best

• The TEYF2090B is commonly found in commercial buildings, industrial facilities, schools, hospitals, office buildings, and other properties that use 480Y/277V electrical distribution systems. It's well suited for protecting lighting circuits, HVAC equipment, distribution panels, and other branch circuits where dependable overcurrent protection is required.