CHH3150H4 - 150Amp Circuit Breaker

CHH3150H4 - 150Amp Circuit Breaker

When you’re working inside an existing electrical system, the replacement breaker usually needs to match what’s already there without changing the setup. The CHH3150H4 molded case circuit breaker is a 150 amp, 3-pole breaker used in CHH4-series installations where maintaining the original configuration is the main requirement. In most cases, it’s selected for like-for-like replacement work in commercial and industrial electrical systems that are already in service.

With a 42kA interrupting rating at 240VAC, the CHH3150H4 is intended for systems where the available fault current has already been defined by the original electrical design. In practice, that means it’s chosen to match existing protection requirements rather than modify or upgrade the system design.

Like many molded case circuit breakers used in established electrical infrastructure, it is intended for use in properly maintained systems and is built to last under normal operating conditions.

Key Features & Benefits

• 150 Amp, 3-pole molded case circuit breaker
• CHH4-series frame for compatible installations
• Designed for 240VAC three-phase systems
• 42kA interrupting rating at 240VAC
• Non-interchangeable factory-set trip unit
• Used for like-for-like replacement applications
• Maintains existing panel layout and configuration
• Common in commercial and industrial facilities
• Matches existing CHH4 electrical system requirements

Technical Specifications

• Part Number: CHH3150H4
• Type: CHH4
• Product Category: Molded Case Circuit Breaker
• Amperage Rating: 150 Amps
• Poles: 3
• Voltage Rating: 240VAC
• Interrupting Rating: 42kAIC @ 240VAC
• Trip Unit: Non-Interchangeable
• Dimensions: 4.13"W x 7.50"H x 3.06"D
• Width: 4.13 in.
• Height: 7.50 in.
• Depth: 3.06 in.
• Approximate Shipping Weight: 8.5 lbs

Material Compliance and Certifications

• The CHH3150H4 is intended for use in electrical equipment designed to accept compatible CHH4-series molded case circuit breakers. Installation should always be performed by qualified electrical personnel and in accordance with all applicable electrical codes and safety standards. Before installation, confirm compatibility with the existing system, including voltage rating, interrupting capacity, and physical fit.

Where It Works Best

• Existing CHH4-series electrical distribution systems
• Commercial and industrial facilities
• Three-phase power distribution applications
• Feeder and branch circuit protection
• Maintenance and repair projects
• Like-for-like breaker replacement work
• Systems requiring a 150 Amp, 3-pole breaker
• Installations where maintaining original configuration is important