QDA221751 - 175 Amp Circuit Breaker

QDA221751 - 175 Amp Circuit Breaker

The QDA221751 circuit breaker is a 2-pole, 175-amp molded case circuit breaker designed for dependable circuit protection in commercial and industrial power distribution systems. Built on the PowerPact Q-Frame platform, this unit features an I-Line, plug-on configuration for straightforward installation in compatible panelboards and switchboards. With an interrupting rating of 25kA at 240VAC, the QDA221751 is engineered to provide effective overcurrent protection against overloads and short circuits in systems where form, fit, and function must match existing equipment specifications. Its thermal magnetic trip mechanism delivers consistent, time-tested protection, making it a practical replacement option in legacy and existing installations. Designed to handle demanding electrical loads, this breaker is built to last and maintain reliable operation within its rated capacity.

Key Features and Benefits

• 175 Amp Continuous Rating: Supports substantial load requirements in commercial and industrial applications.
• 2-Pole Configuration: Designed for use on A-B phase systems in 240VAC applications.
• 25kA Interrupting Capacity @ 240VAC: Provides appropriate fault current protection within rated conditions.
• Thermal Magnetic Trip Unit: Combines thermal overload protection with magnetic short-circuit response for dependable operation.
• PowerPact Q-Frame Design: Ensures compatibility with equipment designed for Q-Frame breakers.
• I-Line, Plug-On Mounting: Allows secure installation in compatible I-Line panelboards and distribution systems.
• Molded Case Construction: Helps protect internal components and supports long-term durability.

Technical Specifications

• Part Number: QDA221751
  
• Manufacturer Series: PowerPact Q-Frame
  
• Amperage Rating: 175 Amps
  
• Poles: 2
  
• Voltage Rating: 240VAC
  
• Interrupting Rating (A.I.C.): 25kA @ 240VAC
  
• Trip Type: Thermal Magnetic
  
• Mounting Style: I-Line, Plug-On
  
• Phase: A-B Phase
  
• Breaker Type: Molded Case Circuit Breaker
  
• Approximate Shipping Weight: 3.0 lbs
  
• Approximate Height: 7.88 inches
  

Material Compliance and Certifications

• Industry Standards: The QDA221751 molded case circuit breaker is manufactured in accordance with applicable industry standards for molded case circuit breakers and is designed to meet UL listing requirements for its class and rating when installed in approved equipment.
• Compliance: Compliance with recognized electrical safety standards helps support safe integration into properly rated panelboards and switchgear systems. Always confirm compatibility with the specific installation environment and local electrical codes.

Where It Works Best

• Commercial facilities requiring dependable 240VAC circuit protection
• Industrial environments with compatible I-Line distribution systems
• Replacement applications where Q-Frame form, fit, and ratings must match existing equipment
• Panelboards and switchboards designed for plug-on I-Line breakers