BQ2C040 - 40Amp Circuit Breaker

BQ2C040 - 40Amp Circuit Breaker

The BQ2C040 is a 40-amp, 2-pole bolt-on molded case circuit breaker designed for dependable overcurrent protection in 120/240VAC electrical distribution systems. Built on the BQ frame platform and HACR rated, this breaker is commonly used in commercial and light industrial panelboards where consistent branch circuit protection is required. With a 10k A.I.C. interrupting rating at 120/240VAC and a 40°C calibration, the BQ2C040 is engineered for accurate performance under typical operating conditions. Its bolt-on mounting design helps ensure a secure, stable connection within compatible panelboards, making it a practical form, fit, and functional replacement for existing BQ-style breakers in legacy systems. Manufactured as a molded case circuit breaker (MCCB), the BQ2C040 is built to last and designed to help protect conductors and equipment from overloads and short circuits. Whether you’re maintaining an existing electrical distribution system or replacing a faulty breaker, this 40-amp BQ frame breaker delivers the ratings and configuration required for safe, code-compliant operation when installed in properly rated equipment.

Key Features and Benefits

• 40 Amp Rating: Provides branch circuit protection for moderate-load applications.
• 2-Pole Configuration: Designed for use on 120/240VAC systems requiring simultaneous disconnection of two conductors.
• 10kA Interrupting Capacity: Rated for 10,000 A.I.C. at 120/240VAC to handle available fault current within its specifications.
• Bolt-On Mounting: Secures directly to the panelboard bus for a stable, vibration-resistant installation.
• BQ Frame Type: Ensures proper fit and compatibility with panelboards designed for BQ series breakers.
• HACR Rated: Suitable for use with heating, air conditioning, and refrigeration equipment in accordance with applicable codes.
• 40°C Calibration: Designed to operate accurately in standard ambient temperature environments.

Technical Specifications

• Part Number: BQ2C040
  
• Amperage: 40 Amps
  
• Poles: 2
  
• Voltage Rating: 120/240VAC
  
• Interrupting Rating: 10k A.I.C. @ 120/240VAC
  
• Frame Type: BQ
  
• Mounting Type: Bolt-On
  
• HACR Rated: Yes
  
• Calibration Temperature: 40°C
  
• Approximate Shipping Weight: 2.0 lbs
  
• Approximate Height: 3.29 in.
  

Material Compliance and Certifications

• Industry Standards: The BQ2C040 molded case circuit breaker is manufactured to meet applicable industry standards for thermal-magnetic circuit protection.
• HACR Certification: HACR certification confirms suitability for HVAC-related applications when installed according to code requirements. Always verify compatibility with the specific panelboard and ensure installation complies with the National Electrical Code (NEC) and local regulations.

Where It Works Best

• Commercial panelboards
• Light industrial facilities
• HVAC branch circuits
• Office buildings and retail spaces
• Maintenance and retrofit projects involving BQ frame systems