TEYH1020B - 20 Amp Circuit Breaker

TEYH1020B - 20 Amp Circuit Breaker

The TEYH1020B is a 20-amp, single-pole bolt-on circuit breaker built for dependable protection in your commercial and industrial electrical systems. It uses a thermal magnetic trip mechanism that responds to both sustained overloads and short circuits, helping protect connected equipment and wiring from damage. This breaker features a non-interchangeable trip unit, which means its trip characteristics are factory set and cannot be swapped or adjusted. The bolt-on mounting design creates a secure connection inside compatible panelboards, making it a practical choice for maintenance, repairs, or replacing an existing breaker with the same specifications. Rated for 35kA at 277VAC and 65kA at 120VAC, the TEYH1020B is suitable for applications where higher interrupting capacity is required. Before installation, always verify that the breaker matches your panel and electrical system requirements.

Key Features and Benefits

• 20 Amp Current Rating: Rated for 20 amps to provide dependable protection for compatible branch circuits.
• Single-Pole Design: Configured as a single-pole circuit breaker for use in compatible electrical distribution systems.
• Bolt-On Mounting: Bolt-on mounting creates a secure installation inside compatible panelboards.
• Thermal Magnetic Protection: Uses a thermal magnetic trip mechanism that responds to both sustained overloads and short circuits, helping protect connected equipment and wiring from damage.
• Non-Interchangeable Trip Unit: Features a factory-calibrated non-interchangeable trip unit, meaning its trip characteristics cannot be swapped or adjusted.
• High Interrupting Rating: Rated for 35kA at 277VAC and 65kA at 120VAC, making it suitable for applications where higher interrupting capacity is required.
• 480Y/277V Class: Designed for 480Y/277V class electrical systems.

Technical Specifications

• Part Number: TEYH1020B
  
• Type: TEYH
  
• Poles: 1
  
• Amperage: 20A
  
• Trip Type: Thermal Magnetic
  
• Mounting: Bolt-On
  
• Trip Unit: Non-Interchangeable
  
• Voltage Class: 480Y/277V
  
• Interrupting Rating: 35kA @ 277VAC; 65kA @ 120VAC
  
• Dimensions:
  • Height: 5.25 in.
  • Width: 1.00 in.
  • Depth: 3.06 in.

Material Compliance and Certifications

• Industry Standards: The TEYH1020B is manufactured for use in compatible electrical distribution equipment and is intended to meet applicable industry standards for molded case circuit breakers.
• Installation Requirements: Always install and maintain electrical equipment according to local electrical codes and the manufacturer's recommendations.

Where It Works Best

• The TEYH1020B is commonly used in commercial buildings, industrial facilities, schools, healthcare facilities, office buildings, and other 480Y/277V electrical distribution systems. It works well for protecting individual branch circuits where a 20-amp, single-pole bolt-on breaker with a high interrupting rating is required.