TEYF1020B - 20Amp Circuit Breaker

TEYF1020B - 10 Amp Circuit Breaker

The TEYF1020B is a 10-amp, single-pole bolt-on circuit breaker built for protecting your branch circuits in 480Y/277V Class electrical systems. It uses a thermal magnetic trip mechanism, which responds to both sustained overloads and sudden short circuits to help you protect electrical equipment and wiring. The bolt-on design creates a secure connection to the panelboard, making it a practical choice for commercial and industrial installations where dependable circuit protection is important. This breaker features a non-interchangeable trip, meaning the trip rating is permanently matched to the breaker at the factory. That helps you to maintain the intended level of circuit protection throughout its service life. With interrupting ratings of 18kA at 277VAC and 65kA at 120VAC, the TEYF1020B is suited for applications where higher fault current capacity is required. Its compact size also makes it easy to fit into compatible panelboards without taking up unnecessary space.

Key Features and Benefits

• 10 Amp Current Rating: Rated at 10 amps for branch circuit protection in 480Y/277V Class electrical systems.
• Single-Pole Configuration: Designed for single-pole applications requiring dependable circuit protection.
• Bolt-On Mounting: Creates a secure connection to the panelboard, making it a practical choice for commercial and industrial installations.
• Thermal Magnetic Protection: Responds to both sustained overloads and sudden short circuits to help protect electrical equipment and wiring.
• Factory-Set Non-Interchangeable Trip: The trip rating is permanently matched to the breaker at the factory to maintain the intended level of circuit protection throughout its service life.
• High Interrupting Capacity: Rated for 18kA at 277VAC and 65kA at 120VAC for applications where higher fault current capacity is required.
• Compact Design: Fits into compatible panelboards without taking up unnecessary space.
  

Technical Specifications

• Part Number: TEYF1020B
  
• Type: TEYF
  
• Poles: 1
  
• Current Rating: 10 Amps
  
• Voltage Class: 480Y/277V
  
• Interrupting Rating:
  • 18kA @ 277VAC
  • 65kA @ 120VAC
• Trip Type: Thermal Magnetic, Non-Interchangeable
  
• Mounting: Bolt-On
  
• Dimensions:
  • Height: 5.25 in.
  • Width: 1.00 in.
  • Depth: 3.06 in.

Material Compliance and Certifications

• Application: The TEYF1020B is manufactured for use in electrical distribution systems that require a thermal magnetic bolt-on circuit breaker.
• Installation: Always confirm compatibility with the intended panelboard and verify installation requirements using applicable electrical codes and the equipment manufacturer's documentation.
  

Where It Works Best

• The TEYF1020B works well in commercial buildings, industrial facilities, offices, schools, healthcare facilities, and similar properties that use 480Y/277V Class electrical systems. It's commonly used to protect individual branch circuits serving lighting, control equipment, and other electrical loads where a 10-amp breaker is specified.