QN2175H - 175Amp Circuit Breaker

QN2175H - 175Amp Circuit Breaker

The QN2175H Type QN circuit breaker is a 2-pole, 175-amp residential main circuit breaker designed to provide dependable overcurrent and short-circuit protection for your 120/240VAC electrical distribution systems. Featuring a thermal magnetic trip mechanism, this breaker responds to both prolonged overloads and instantaneous fault conditions, helping you safeguard electrical equipment while supporting reliable system performance. Built for 50/60Hz operation at 40°C, the QN2175H installs as a plug-in breaker and requires four panel spaces, making it well suited for compatible residential main load centers and other approved electrical panel applications. Its 22kA interrupting rating at 120/240VAC provides a high level of fault interruption capability for demanding installations where dependable circuit protection is essential. Developed to meet the needs of electricians, contractors, maintenance professionals, and facility managers, the QN2175H delivers the performance and reliability expected in residential power distribution applications.

Key Features and Benefits

• 175 Amp current rating: For high-capacity residential main applications.
• 2-pole configuration: For 120/240VAC electrical systems.
• 22kA interrupting capacity at 120/240VAC: For dependable fault protection.
• Thermal magnetic trip technology: Helps protect against both overloads and short circuits.
• Plug-in design: Allows for installation in compatible Type QN load centers.
• Residential main circuit breaker: Engineered for primary service disconnect applications.
• HACR Type: Suitable for approved heating, air conditioning, and refrigeration equipment applications.
• Operating conditions: Rated for 40°C operating conditions and 50/60Hz electrical systems.
• Panel space requirement: Requires 4 panel spaces for installation.
  

Technical Specifications

• Part Number: QN2175H
  
• Type: QN
  
• Circuit Breaker Type: Residential Main, Plug-In, Thermal Magnetic
  
• Poles: 2
  
• Amperage: 175 Amps
  
• Voltage Rating: 120/240VAC
  
• Interrupting Rating (A.I.C.): 22kA @ 120/240VAC
  
• Frequency: 50/60Hz
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• Panel Space Requirement: 4 Spaces
  
• Dimensions:
  • Height: 6.44 in.
  • Width: 2.00 in.
  • Depth: 2.38 in.

Material Compliance and Certifications

• Thermal magnetic trip design: For reliable overcurrent protection.
• HACR Type rated: For compatible heating, air conditioning, and refrigeration applications.
• Electrical system compatibility: Designed for operation on 120/240VAC, 50/60Hz electrical systems.
• Installation requirements: Always verify compatibility with the intended panel and ensure installation complies with applicable local electrical codes and manufacturer requirements.
  

Where It Works Best

• The QN2175H is an excellent choice for residential main electrical service applications that require a 175-amp, 2-pole plug-in circuit breaker. It is well suited for compatible residential load centers where dependable overload and short-circuit protection is critical. This breaker is commonly used in homes, residential upgrades, and approved light commercial installations that utilize compatible Type QN equipment and require a high interrupting capacity to help protect electrical distribution systems.