CHH2175H4 - 175Amp Circuit Breaker

CHH2175H4 - 175 Amp Circuit Breaker

The CHH2175H4 molded case circuit breaker is designed to provide dependable circuit protection in electrical distribution systems that require a 175-amp, 2-pole breaker with a 42kA interrupting capacity at 240VAC. Built on the CHH4 frame, this breaker includes a factory-installed, non-interchangeable trip unit that helps maintain consistent protection settings throughout the life of the device. Molded case breakers like the CHH2175H4 are widely used to safeguard conductors and equipment from overloads and short circuits in commercial and industrial environments. With a design intended for long-term service and compatibility with existing CHH4 frame installations, this breaker provides a practical form-fit-function replacement when maintaining or servicing established electrical systems.

Key Features and Benefits

• 175 Amp Continuous Rating – Supports circuits requiring higher current capacity within compatible distribution equipment.
• 2-Pole Configuration – Suitable for protecting two-phase circuits or split-phase systems.
• 42kA Interrupting Capacity at 240VAC – Designed to safely interrupt high fault currents when properly applied.
• CHH4 Frame Design – Compatible with equipment designed to accept CHH4 frame molded case circuit breakers.
• Non-Interchangeable Trip Unit – Factory-calibrated trip unit ensures consistent protection settings.
• Molded Case Construction – Enclosed breaker housing helps protect internal components and supports long service life.
• Built for Long-Term Use – Manufactured with durable materials commonly used in industrial electrical equipment.

Technical Specifications

• Part Number: CHH2175H4
• Product Type: Molded Case Circuit Breaker
• Poles: 2
• Amperage Rating: 175 Amps
• Interrupting Capacity (A.I.C.): 42kA @ 240VAC
• Frame Type: CHH4
• Trip Unit: Non-Interchangeable
• Approximate Shipping Weight: 2.75 lbs
• Approximate Shipping Height: 7.5 in

Material Compliance and Certifications

• Industry Standards: The CHH2175H4 molded case circuit breaker is manufactured in accordance with widely recognized electrical equipment standards for molded case circuit breakers used in low-voltage power distribution systems.
• Electrical Code Compliance: When installed within properly rated equipment and according to applicable electrical codes, these breakers are commonly used in systems designed to comply with UL standards and National Electrical Code (NEC) requirements for circuit protection.

Where It Works Best

• The CHH2175H4 circuit breaker is typically used in commercial, industrial, and facility electrical distribution systems that require a 175-amp, two-pole breaker within CHH4 frame-compatible panelboards or switchgear. It is often selected for maintaining or servicing existing installations where matching the original frame type, pole configuration, and interrupting rating is necessary. Typical applications include:
  • Electrical distribution panels in commercial buildings
  • Industrial power distribution equipment
  • Mechanical equipment disconnect protection
  • Facility infrastructure and maintenance projects
  • Replacement in existing CHH4 breaker installations where form, fit, and function must match the original equipment