QRH23B175 - 175 Amp Circuit Breaker

QRH23B175 - 175 Amp Circuit Breaker

Protect your 240 VAC power systems with confidence—meet the Siemens QRH23B175 circuit breaker. Designed to deliver dependable protection against overloads and short circuits, this unit supports up to 175 amps and withstands fault currents as high as 25 kA. Compact and installer-friendly, it features a molded case in the QRH2 frame, and ships with load-side lugs for seamless setup. Rated for HACR (Heating, Air Conditioning, Refrigeration) use and built for operation up to 40 °C ambient temperature, it’s a versatile choice for both residential and commercial environments.

Key Features and Benefits

• 175 A protection at 240 VAC: Handles sustained loads reliably.
• 3-pole construction: Ideal for three-phase or multi-phase systems.
• 25 kA interrupting rating: Defends against severe short circuits.
• Space-saving footprint: Compact design fits most standard panels.
• Load-side lugs included: Simplifies wiring and installation.
• HACR rated: Safe for HVAC equipment and mixed electrical loads.
• Operates to 40 °C: Maintains performance under elevated ambient temps.

By translating technical specifications into real-world value, this breaker gives you peace of mind: your circuits stay protected and your installation stays clean and efficient.

Technical Specifications

• Poles: 3
  
• Amperage: 175 A
  
• Interrupting Capacity: 25 kA @ 240 VAC
  
• Frame Type: QRH2 (Molded case)
  
• Dimensions / Weight: ~ 7 in height; ~ 4.5 lbs
  
• Maximum Operating Ambient: 40 °C
  
• Rated Voltage: 240 VAC
  
• Included Accessories: Load-side lugs
  

Material Compliance and Certifications

• Molded case design: Ensures strong insulation and protection.
• QR series frame: Uses Siemens’ type-approved QR series frame.
• Certified HACR: For HVAC & refrigeration compatibility.
• Industrial and residential compliance: Built to withstand normal industrial and residential conditions.

Where It Works Best

• This circuit breaker is a smart fit for commercial panels, multi-unit residential buildings, and light industrial setups where 240 VAC protection is needed. Thanks to its 3-pole design, it works well in three-phase systems or split-phase applications. And because it’s compact, you won’t struggle to find space in crowded panels. Whether you’re protecting motors, HVAC systems, or critical branch circuits, this unit adapts to many installation scenarios.