TEYH2090B - 90Amp Circuit Breaker

TEYH2090B - 90Amp Circuit Breaker

The TEYH2090B is a 2-pole, 90-amp bolt-on thermal magnetic circuit breaker designed to provide dependable overcurrent and short-circuit protection in your commercial and industrial electrical distribution systems. Built for 480Y/277V class applications, this breaker combines a non-interchangeable trip unit with a secure bolt-on mounting design to help you maintain stable electrical connections in demanding environments. Its thermal magnetic trip mechanism responds to both prolonged overloads and high-level fault currents, helping you safeguard conductors, equipment, and connected electrical systems. With interrupting ratings of 35kA at 480VAC and 65kA at 240VAC, the TEYH2090B is well suited for facilities that require reliable protection in the presence of higher available fault current. Whether used in panelboards, lighting systems, HVAC equipment, or commercial power distribution, this breaker delivers the dependable performance electricians, contractors, and maintenance professionals expect.

Key Features and Benefits

• 90 Amp Continuous Current Rating: 90 Amp continuous current rating for medium- to high-capacity branch circuit protection.
• 2-Pole Configuration: A 2-pole configuration designed for protecting two-phase or line-to-line circuits.
• Bolt-On Mounting: Bolt-on mounting helps provide a secure installation while reducing the chance of connection movement over time.
• Thermal Magnetic Trip Mechanism: The thermal-magnetic trip mechanism protects against both overload conditions and instantaneous short circuits.
• Non-Interchangeable Trip Unit: Non-interchangeable trip unit maintains a fixed trip rating for consistent circuit protection.
• 480Y/277V Class Design: 480Y/277V class design is suitable for many commercial and industrial electrical systems.
• High Interrupting Capacity: High interrupting capacity, rated at 35 kA at 480 VAC and 65 kA at 240 VAC, for applications with elevated available fault current.
• Compact Design: Compact design simplifies installation and replacement in compatible electrical equipment.
  

Technical Specifications

• Part Number: TEYH2090B
  
• Type: TEYH
  
• Poles: 2
  
• Amperage: 90 Amps
  
• Trip Type: Thermal Magnetic
  
• Trip Unit: Non-Interchangeable
  
• Mounting: Bolt-On
  
• Voltage Class: 480Y/277V
  
• Interrupting Rating: 35kA @ 480VAC; 65kA @ 240VAC
  
• Dimensions:
  • Height: 5.25 in.
  • Width: 2.00 in.
  • Depth: 3.06 in.

Material Compliance and Certifications

• Industry Standards: The TEYH2090B is manufactured to meet applicable industry standards for molded-case circuit breakers in its product family.
• Installation and Code Compliance: Compatibility, installation practices, and code compliance should always be verified by a qualified electrical professional and performed in accordance with the National Electrical Code (NEC), local electrical regulations, and the equipment manufacturer's requirements.
  

Where It Works Best

• The TEYH2090B is an excellent choice for a wide range of commercial and industrial power distribution applications, including commercial buildings and office facilities, industrial manufacturing environments, distribution panelboards, HVAC equipment and mechanical systems, lighting distribution circuits, institutional and educational facilities, and electrical infrastructure requiring dependable high-interrupting-capacity branch circuit protection.