QBA220704 - 70 Amp Circuit Breaker

QBA220704 - 70 Amp Circuit Breaker

The QBA220704 is a 70 amp, 2-pole molded case circuit breaker built for use in PowerPact Q-Frame I-Line panelboards. Rated at 10kA interrupting capacity at 240VAC, this breaker is designed to provide dependable overload and short-circuit protection in commercial and light industrial distribution systems. Its thermal magnetic trip mechanism responds to sustained overloads while also reacting instantly to higher fault currents, helping protect wiring and connected equipment within its listed ratings. This model features an I-Line plug-on mounting design and a B-C phase connection, making it important to match the breaker to the correct panelboard configuration. When maintaining existing electrical infrastructure, having the correct frame type, amperage, and interrupting rating matters. The QBA220704 is intended as a direct replacement within compatible Q-Frame assemblies, maintaining proper fit and electrical characteristics without altering the original system design. Like other molded case breakers in this class, it is built for long service life under normal operating conditions.

Key Features and Benefits

• 70 Amp continuous current rating
• 2-pole configuration for 240VAC applications
• 10kA interrupting capacity at 240VAC
• Thermal magnetic trip unit (overload and instantaneous protection)
• PowerPact Q-Frame construction
• I-Line, plug-on mounting style
• B-C phase configuration
• Molded case enclosure designed for durability

Technical Specifications

• Part Number: QBA220704
  
• Frame Type: QBA (PowerPact Q-Frame)
  
• Poles: 2
  
• Amperage: 70A
  
• Voltage Rating: 240VAC
  
• A.I.C. Rating: 10kA @ 240VAC
  
• Trip Type: Thermal Magnetic
  
• Mounting: I-Line Plug-On
  
• Phase: B-C
  
• Approximate Height: 7.88 in.
  
• Approximate Shipping Weight: 3.0 lbs
  

Material Compliance and Certifications

• UL Standards: The QBA220704 molded case circuit breaker is manufactured to meet applicable UL standards for branch circuit protection when installed according to its ratings.
• Code Compliance: Proper installation in compatible Q-Frame I-Line panelboards and adherence to NEC requirements help ensure code compliance and safe operation.
  

Where It Works Best

• Commercial I-Line panelboards
• Office and retail electrical distribution systems
• Light industrial facilities
• 240VAC branch circuits requiring 70A protection
• Maintenance replacements in existing PowerPact Q-Frame setups