TEYD3090B - 90Amp Circuit Breaker

TEYD3090B - 90 Amp Circuit Breaker

The TEYD3090B is a 3-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 as part of the TEYD series, this breaker features a non-interchangeable trip. It is rated for 480Y/277V Class applications, making it well-suited for branch circuit protection in panelboards and switchboards where reliable performance is essential. Its bolt-on mounting design provides a secure electrical connection, helping you maintain system stability in demanding environments. With interrupting ratings of 25 kA at 480 VAC and 65 kA at 240 VAC, the TEYD3090B is engineered to protect connected equipment from electrical faults while minimizing downtime. Whether you're replacing an existing breaker or maintaining a facility's electrical infrastructure, this circuit breaker delivers the dependable protection professionals expect for everyday operation. This description is written to provide original, accurate, and helpful product information in line with modern search quality and SEO best practices.

Key Features and Benefits

• 90 Amp Current Rating: 90 Amp current rating for reliable branch circuit protection.
• 3-Pole Configuration: 3-pole configuration designed for three-phase electrical systems.
• Thermal Magnetic Trip Mechanism: The thermal magnetic trip mechanism protects against both overloads and short circuits.
• Bolt-On Mounting: Bolt-on mounting offers a secure installation and dependable electrical connection.
• Non-Interchangeable Trip: Non-interchangeable trip helps maintain the factory-specified protection settings.
• Interrupting Capacity: Interrupting capacity: 25kA at 480VAC and 65kA at 240VAC for handling high fault current conditions.
• 480Y/277V Class Design: 480Y/277V Class design suitable for commercial and industrial power distribution applications.
• Compact Footprint: Compact footprint simplifies installation in compatible electrical equipment.
  

Technical Specifications

• Part Number: TEYD3090B
  
• Type: TEYD
  
• Poles: 3
  
• Amperage: 90 Amps
  
• Trip Type: Thermal Magnetic
  
• Mounting Style: Bolt-On
  
• Trip Configuration: Non-Interchangeable Trip
  
• Voltage Class: 480Y/277V Class
  
• A.I.C. Rating: 25kA @ 480VAC; 65kA @ 240VAC
  
• Dimensions:
  • Height: 5.25 in.
  • Width: 3.00 in.
  • Depth: 3.06 in.

Material Compliance and Certifications

• Installation Guidance: The TEYD3090B is designed for use in electrical distribution systems requiring dependable overcurrent protection. It is designed for installation in compatible equipment and should always be installed and maintained by qualified personnel in accordance with applicable electrical codes, manufacturer specifications, and local regulations. Verify compatibility with your panelboard or distribution equipment before installation.
  

Where It Works Best

• The TEYD3090B is an excellent choice for protecting commercial buildings, industrial facilities, manufacturing equipment, office buildings, retail locations, institutional properties, and other three-phase electrical distribution systems. Its 90-amp capacity, bolt-on construction, and thermal-magnetic protection make it well-suited for safeguarding feeders and branch circuits that power motors, HVAC equipment, lighting systems, machinery, and other critical electrical loads requiring dependable circuit protection.