THHQB1150 - 50Amp Circuit Breaker

THHQB1150 - 50 Amp Circuit Breaker

The THHQB1150 is a 50-amp, single-pole circuit breaker designed for use in your compatible Q-Line panelboards. This bolt-on molded case circuit breaker provides overcurrent protection for 120VAC electrical systems and features a 22kA interrupting rating, making it suitable for applications where higher available fault current may be present. Its bolt-on mounting design helps you to maintain a secure connection within the panel, while the compact 1-inch width allows efficient use of panel space. The breaker is also HACR rated, making it suitable for approved heating, air conditioning, and refrigeration equipment installations.

Key Features and Benefits

• 50 amp current rating
• Single-pole configuration
• Type THHQB circuit breaker
• Bolt-on mounting design
• 22kA interrupting rating at 120VAC
• HACR rated
• Q-Line series breaker
• Molded case construction
• Compact footprint for panelboard installations

Technical Specifications

• Part Number: THHQB1150
  
• Type: THHQB
  
• Series: Q-Line
  
• Poles: 1
  
• Amperage: 50A
  
• Voltage Rating: 120VAC
  
• Interrupting Rating: 22kA @ 120VAC
  
• Mounting: Bolt-On
  
• Construction: Molded Case Circuit Breaker
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 1.0 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• HACR Rated: This circuit breaker is HACR rated for use in approved heating, ventilation, air conditioning, and refrigeration applications. Installation should be performed in accordance with applicable electrical codes and manufacturer requirements.

Where It Works Best

• The THHQB1150 is commonly used in commercial, industrial, and residential electrical distribution systems requiring a 50-amp, single-pole breaker. Typical applications include branch circuit protection, HVAC equipment, panelboard installations, and general-purpose power distribution systems where a bolt-on breaker is required.