THQB1140 - 40Amp Circuit Breaker

THQB1140 - 40 Amp Circuit Breaker

The THQB1140 is a 1-pole, 40-amp molded case circuit breaker with a bolt-on mounting configuration. It is used in 120VAC electrical distribution systems to protect your circuits from overloads and short circuits. As part of the Q-Line series, this breaker is commonly found in commercial buildings, industrial facilities, and residential applications where a bolt-on branch breaker is required.

Its 10 kA interrupting rating at 120 VAC allows it to safely interrupt fault currents within its rated capacity. The bolt-on design helps you to maintain a secure connection to the panelboard, making it a practical option for installations subject to vibration or frequent use. The breaker is also HACR rated, allowing its use in many heating, ventilation, air conditioning, and refrigeration applications.

Key Features and Benefits

• 40 amp rating
• Single-pole construction
• Type THQB breaker
• Bolt-on mounting
• 10kA interrupting rating at 120VAC
• HACR rated
• Q-Line series
• Molded case construction
• Suitable for branch circuit protection
  

Technical Specifications

• Part Number: THQB1140
  
• Type: THQB
  
• Series: Q-Line
  
• Poles: 1
  
• Current Rating: 40A
  
• Voltage Rating: 120VAC
  
• Interrupting Rating: 10kA @ 120VAC
  
• Mounting Type: Bolt-On
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 1.0 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• HACR Rated: HACR Rated
• Molded Case Construction: Molded case circuit breaker construction
• Compatible Systems: Intended for use in compatible panelboard systems
• Industry Standards: Manufactured to applicable industry standards for circuit protection equipment
  

Where It Works Best

• This breaker is often used for branch circuits, HVAC equipment, lighting systems, and other 120 VAC loads that require 40-amp overcurrent protection. Typical applications include commercial buildings, office spaces, retail facilities, light industrial environments, and residential electrical systems.