BQCH3B070 - 70Amp Circuit Breaker

BQCH3B070 - 70 Amp Circuit Breaker

The BQCH3B070 is a 70-amp, 3-pole molded case circuit breaker designed to provide dependable overcurrent protection in commercial and industrial electrical distribution systems. Built on the BQCH frame platform, this bolt-on breaker is rated for 14k A.I.C. at 480VAC, making it suitable for applications where higher available fault currents must be safely managed. With HACR rating and calibration at 40°C, this unit is well-suited for HVAC-related equipment and other demanding installations operating under elevated ambient temperatures. Designed for form, fit, and functional replacement in compatible panelboards and distribution equipment, the BQCH3B070 delivers the protection you expect from a breaker built to last.

Key Features and Benefits

• 70 Amp Continuous Rating – Provides reliable overcurrent protection for branch circuits and distribution systems.
• 3 Pole Configuration – Designed for three-phase electrical systems requiring simultaneous disconnection across all phases.
• 14k A.I.C. at 480VAC – Interrupting capacity suitable for commercial and light industrial environments with moderate fault levels.
• Bolt-On Mounting Design – Ensures secure mechanical and electrical connection in compatible panelboards.
• BQCH Frame Type – Direct form, fit, and function replacement for equipment designed for the BQCH series.
• HACR Rated – Approved for use with heating, air conditioning, and refrigeration equipment.
• 40°C Calibration – Engineered for consistent performance in higher ambient temperature environments.

Technical Specifications

• Part Number: BQCH3B070
  
• Amperage: 70 Amps
  
• Poles: 3
  
• Voltage Rating: 480VAC
  
• Interrupting Capacity (A.I.C.): 14kA @ 480VAC
  
• Frame Type: BQCH
  
• Mounting Type: Bolt-On
  
• Calibration Temperature: 40°C
  
• HACR Rated: Yes
  
• Breaker Type: Molded Case Circuit Breaker
  
• Approximate Shipping Weight: 3.0 lbs
  
• Approximate Height: 4.49 inches
  

Material Compliance and Certifications

• Industry Standards: The BQCH3B070 molded case circuit breaker is manufactured to meet applicable industry standards for molded case circuit breakers, including UL listing where specified for the product line.
• HACR Rating: HACR rating confirms suitability for HVAC system protection. As with all properly rated molded case breakers, installation should comply with the National Electrical Code (NEC) and local electrical regulations to ensure safe and code-compliant operation.
  

Where It Works Best

• Commercial panelboards
• Industrial distribution systems
• HVAC equipment circuits
• Three-phase branch circuit protection
• Electrical systems operating at 480VAC