QS2175 - 175Amp Circuit Breaker

QS2175 - 175Amp Circuit Breaker

The QS2175 is a 2-pole, 175-amp thermal magnetic circuit breaker engineered to provide dependable overcurrent and short-circuit protection for your 120/240VAC electrical distribution systems. Designed as a Type QS breaker with a 10kA interrupting capacity, it helps you safeguard electrical equipment while supporting consistent system performance in commercial, industrial, and heavy-duty residential applications. Built for 60Hz operation and rated as HACR Type, the QS2175 is suitable for HVAC-related installations as well as a wide range of panelboard and distribution applications where reliable circuit protection is essential. Its thermal magnetic trip mechanism delivers responsive protection against prolonged overloads and instantaneous response to fault conditions, helping you to minimize equipment damage and reduce downtime. Accommodating copper or aluminum conductors from #3 AWG through 300 kcmil, this breaker offers installation flexibility for demanding electrical systems while maintaining dependable performance in ambient temperatures up to 40°C.

Key Features and Benefits

• 175 Amp Current Rating: 175 Amp continuous current rating for higher-capacity electrical circuits.
• 2-Pole Configuration: 2-pole configuration designed for 120/240VAC applications.
• Thermal Magnetic Trip Technology: Thermal magnetic trip technology provides dependable protection against overloads and short circuits.
• 10kA Interrupting Capacity: 10kA interrupting capacity at 120/240VAC helps safely interrupt fault currents.
• HACR Type Rated: HACR Type rated for use in heating, air conditioning, and refrigeration equipment where applicable.
• 60Hz Operation: 60Hz operation for standard North American electrical systems.
• Wide Conductor Compatibility: Accepts #3 AWG to 300 kcmil copper or aluminum conductors, offering versatile installation options.
• 40°C Ambient Rating: Rated for operation in 40°C ambient environments, supporting reliable performance in demanding conditions.
  

Technical Specifications

• Part Number: QS2175
  
• Type: QS
  
• Poles: 2
  
• Amperage: 175 Amps
  
• Voltage Rating: 120/240VAC
  
• Interrupting Capacity (A.I.C.): 10kA @ 120/240VAC
  
• Frequency: 60Hz
  
• Trip Unit: Thermal Magnetic
  
• HACR Rated: Yes
  
• Wire Range: #3 AWG – 300 kcmil Copper/Aluminum
  
• Ambient Temperature Rating: 40°C
  
• Dimensions:
  • Height: 7.88 in.
  • Width: 2.13 in.
  • Depth: 3.00 in.

Material Compliance and Certifications

• Thermal Magnetic Construction: Thermal magnetic circuit breaker construction.
• HACR Type Rated: HACR Type rated.
• 60Hz Rated: Rated for 60Hz operation.
• Conductor Compatibility: Compatible with copper (CU) and aluminum (AL) conductors within the specified wire range.
• 10kA Interrupting Capacity: 10kA interrupting capacity at 120/240VAC.
  

Where It Works Best

• The QS2175 is well suited for commercial buildings, industrial facilities, electrical distribution panels, HVAC equipment, and heavy-duty power distribution systems requiring a 2-pole, 175-amp circuit breaker. It is an excellent choice for protecting branch circuits and feeder applications where dependable overload and short-circuit protection, high current capacity, and compatibility with both copper and aluminum conductors are important. Its combination of thermal magnetic protection, HACR suitability, and 120/240VAC performance makes it a practical solution for maintaining safe and reliable electrical operation across a variety of demanding environments.