QDA221252 - 125 Amp Circuit Breaker

QDA221252 - 125 Amp Circuit Breaker

The QDA221252 circuit breaker is a 2-pole, 125 amp molded case circuit breaker designed for use in PowerPact® Q-Frame I-Line distribution systems. Built for dependable overcurrent protection in commercial and industrial electrical panels, this breaker delivers a 25kA A.I.C. rating at 240VAC, helping safeguard conductors and connected equipment from overloads and short circuits. Its thermal magnetic trip mechanism provides reliable, time-tested protection by responding to both sustained overcurrents and instantaneous fault conditions. Designed as a form, fit, and function replacement, the QDA221252 integrates directly into compatible I-Line panelboards and switchboards, making it well-suited for maintaining and servicing existing electrical infrastructure. With a plug-on I-Line connection and compact Q-Frame design, this breaker supports efficient installation while maintaining compliance with applicable industry standards. Built to last and engineered for consistent operation, the QDA221252 is commonly used in commercial facilities, light industrial environments, and other applications requiring 125 amp, 2-pole circuit protection at 240VAC.

Key Features and Benefits

• 125 Amp Rating: Designed to provide reliable overcurrent protection for branch circuits and feeder applications.
• 2-Pole Configuration: Suitable for single-phase systems requiring two-pole protection.
• 25kA A.I.C. @ 240VAC: Interrupting capacity rated for demanding fault current conditions.
• Thermal Magnetic Trip Unit: Combines inverse time overload protection with instantaneous short-circuit response.
• PowerPact Q-Frame Construction: Engineered for compatibility with Q-Frame I-Line panelboards and switchboards.
• I-Line Plug-On Mounting: Supports secure installation within designated I-Line systems.
• Molded Case Design: Enclosed construction helps protect internal components and ensures consistent performance.
  

Technical Specifications

• Part Number: QDA221252
  
• Manufacturer Series: PowerPact Q-Frame
  
• Poles: 2
  
• Amperage Rating: 125A
  
• Voltage Rating: 240VAC
  
• Interrupting Rating (A.I.C.): 25kA @ 240VAC
  
• Trip Type: Thermal Magnetic
  
• Mounting Type: I-Line, Plug-On
  
• Phase: A-C
  
• Breaker Type: Molded Case Circuit Breaker
  
• Approximate Shipping Weight: 3.0 lbs
  
• Dimensions:
  • Height: 7.88 in.

Material Compliance and Certifications

• Industry Standards: The QDA221252 circuit breaker is manufactured to meet applicable UL standards for molded case circuit breakers and is designed for installation in accordance with the National Electrical Code (NEC).
• Manufacturing and Materials: As part of the PowerPact Q-Frame family, it is produced using industry-recognized materials and manufacturing processes intended to support long-term durability in commercial and industrial environments.
  

Where It Works Best

• Commercial buildings requiring 125A branch or feeder protection
• Industrial facilities utilizing PowerPact Q-Frame I-Line distribution systems
• Office complexes, retail spaces, and mixed-use properties
• Maintenance projects involving compatible Q-Frame panelboards and switchboards
• Electrical contractors seeking a direct form, fit, and function replacement within existing I-Line assemblies