CHH3150 - 150Amp Circuit Breaker

CHH3150 - 150 Amp Circuit Breaker

The CHH3150 molded case circuit breaker is designed for use in commercial and industrial electrical distribution systems that require dependable overcurrent protection and compatibility with existing CHH-frame equipment. Rated at 150 amps with a 100kA interrupting capacity at 240VAC, this 3-pole breaker helps protect circuits from overloads and short circuits while maintaining proper form, fit, and function within compatible panelboards and switchgear assemblies. The non-interchangeable trip unit is factory matched to the breaker, ensuring consistent operation aligned with the specified rating. Built with durable internal components and a molded insulating case, the CHH3150 reflects the long-standing design approach used in many installed electrical systems—equipment intended to remain in service for many years when properly maintained. This breaker is commonly used as a functional replacement in existing electrical systems that require a CHH frame breaker with the same electrical ratings.

Key Features and Benefits

• 150 Amp Current Rating – Suitable for protecting branch or feeder circuits within compatible distribution systems.
• 3-Pole Configuration – Supports three-phase electrical systems commonly used in commercial and industrial installations.
• 100kA Interrupting Capacity at 240VAC – Helps safely interrupt high fault currents when properly applied.
• CHH Frame Compatibility – Designed to match the form and fit requirements of CHH-frame installations.
• Non-Interchangeable Trip Unit – Factory-installed trip unit calibrated to the breaker rating.
• Molded Case Construction – Insulated housing designed to contain internal components and support long service life.
• Built for Long-Term Electrical Systems – Reflects designs commonly used in equipment that remains in operation for many years.

Technical Specifications

• Part Number: CHH3150
  
• Product Type: Molded Case Circuit Breaker
  
• Poles: 3
  
• Amperage Rating: 150A
  
• Voltage Rating: 240 VAC
  
• Interrupting Capacity: 100kA @ 240VAC
  
• Frame Type: CHH
  
• Trip Unit: Non-Interchangeable
  
• Approximate Shipping Weight: 4.13 lbs
  
• Approximate Height: 7.5 in
  

Material Compliance and Certifications

• UL Standards and Electrical Industry Requirements: The CHH3150 molded case circuit breaker is manufactured and tested to meet applicable UL standards and electrical industry requirements for molded case circuit breakers when installed within properly rated equipment.
• UL 489 Guidelines: Molded case breakers in this class are typically designed to comply with UL 489 guidelines for circuit protection devices and follow established electrical safety practices for use in power distribution systems.

Where It Works Best

• Commercial and industrial panelboards
• Distribution equipment in manufacturing facilities
• Electrical rooms in institutional buildings
• Maintenance replacement in existing CHH breaker installations
• Three-phase feeder and branch circuit protection