QJH23B175 - 175Amp Circuit Breaker

QJH23B175 - 175Amp Circuit Breaker

The QJH23B175 is a 3-pole, 175-amp molded case circuit breaker designed for use in your electrical distribution systems requiring dependable overcurrent and short-circuit protection. Rated 22kA at 240VAC, this Type QJH circuit breaker is well-suited as a form, fit, and functional replacement for compatible existing installations. Built to last, it helps you protect conductors and connected equipment while supporting the continued operation and maintenance of your commercial and industrial electrical systems. This breaker is HACR rated, calibrated for 40°C operation, and comes complete with load-side lugs to simplify installation in compatible equipment. Whether you're replacing an existing breaker during maintenance or restoring an electrical system to service, the QJH23B175 delivers the ratings and compatibility needed for the job.

Key Features and Benefits

• 175-amp current rating: For demanding electrical distribution applications.
• 3-pole configuration: For three-phase electrical systems.
• Type QJH molded case circuit breaker: For compatible panelboards and switchgear.
• 22kA interrupting capacity at 240VAC: To help protect against fault currents within its rated capacity.
• HACR rated: For use in compatible heating, air conditioning, and refrigeration applications.
• Calibrated for 40°C ambient operation: Provides operation at the specified ambient temperature.
• Includes load-side lugs: For installation convenience.
• Designed as a form, fit, and functional replacement: For compatible existing equipment.
• Built to last: For long-term service in properly maintained electrical systems.
  

Technical Specifications

• Part Number: QJH23B175
  
• Type: QJH
  
• Product Type: Molded Case Circuit Breaker
  
• Poles: 3
  
• Amperes: 175A
  
• Interrupting Rating: 22kA @ 240VAC
  
• Voltage Rating: 240VAC
  
• Dimensions:
  • Height: 7.0 in.
  • Width: 4.5 in.
  • Depth: 2.53 in.
• Ambient Calibration: 40°C
  
• HACR Rated: Yes
  
• Load-Side Lugs: Included
  

Material Compliance and Certifications

• HACR Rated: HACR Rated.
• Molded Case Circuit Breaker Construction: Molded case circuit breaker construction.
• Calibrated for Operation at 40°C: Calibrated for operation at 40°C.
• Manufacturing Specifications: Manufactured to meet the specifications associated with the Type QJH product family. Always verify compatibility, electrical ratings, and applicable code requirements before installation.
  

Where It Works Best

• The QJH23B175 is commonly used in commercial, industrial, and institutional electrical distribution systems that require a 175-amp, 3-pole molded case circuit breaker with a 22kA interrupting rating at 240VAC. It is suitable for maintenance, repair, and replacement projects where matching the original breaker's form, fit, and function is essential. Typical applications include distribution panels, panelboards, switchgear, HVAC equipment covered by its HACR rating, and other compatible electrical systems designed for a Type QJH circuit breaker. Always confirm compatibility with the existing equipment and system requirements before installation.