QJA32175 - 175A Circuit Breaker

QJA32175 - 175A Circuit Breaker

The QJA32175 is a 175 amp, 3-pole molded case circuit breaker built for protecting three-phase electrical systems from overloads and short circuits. As part of the Q-Frame family, this breaker features an I-Line plug-on design for use in compatible panelboards and switchboards. Its thermal magnetic trip unit responds to prolonged overload conditions while also reacting instantly to short circuits, helping reduce the risk of damage to connected equipment. With a 100kA interrupting rating at 240VAC, the QJA32175 is a practical choice for electrical systems with high available fault current. Whether you're replacing an existing breaker during maintenance or outfitting a commercial or industrial power distribution system, this breaker delivers the performance and protection expected from a molded case circuit breaker built for demanding applications.

Key Features and Benefits

• 175 amp current rating.
• Three-pole configuration for three-phase systems.
• Thermal magnetic trip unit provides overload and short-circuit protection.
• 100kA interrupting capacity at 240VAC.
• Q-Frame molded case circuit breaker.
• I-Line plug-on mounting for compatible equipment.
• Suitable for replacement, maintenance, and electrical system upgrades.
• Built for commercial and industrial power distribution applications.

Technical Specifications

• Part Number: QJA32175
• Type: QJA
• Frame: Q-Frame
• Breaker Type: Molded Case Circuit Breaker
• Trip Unit: Thermal Magnetic
• Mounting: I-Line Plug-On
• Poles: 3
• Amperage: 175A
• Interrupting Rating: 100kA @ 240VAC
• Dimensions:
  • Height: 7.88 in.
  • Width: 4.50 in.
  • Depth: 4.31 in.

Material Compliance and Certifications

• This molded case circuit breaker is manufactured to meet applicable industry standards for electrical protection devices. Because specifications can vary by production run, verify all ratings and compatibility with your equipment before installation.

Where It Works Best

• The QJA32175 is commonly used in commercial buildings, industrial facilities, manufacturing plants, distribution panelboards, switchboards, HVAC equipment, motor feeders, electrical service upgrades, and maintenance and replacement projects.