CAH3125 - 125Amp Circuit Breaker

CAH3125 - 125 Amp Circuit Breaker

The CAH3125 circuit breaker is a 125 amp, 3 pole molded case circuit breaker designed for dependable circuit protection in commercial and industrial electrical distribution systems operating at up to 240VAC. Built on the CAH frame platform, this breaker features a non-interchangeable trip unit calibrated for consistent overcurrent protection at 40°C. With a 22kA A.I.C. rating at 240VAC, the CAH3125 is engineered to provide reliable interruption capacity in demanding environments while maintaining proper form, fit, and function for compatible legacy panelboards and switchgear. Line- and load-side lugs are included, helping simplify installation and ensuring secure conductor termination. Designed with durability in mind, this breaker supports long-term use in established electrical systems where matching specifications and physical configuration are essential.

Key Features and Benefits

• 125 Amp Continuous Rating: Provides consistent overcurrent protection for branch and feeder circuits.
• 3 Pole Configuration: Suitable for three-phase electrical systems requiring simultaneous disconnection of all phases.
• 22kA Interrupting Capacity at 240VAC: Designed to safely interrupt fault currents within rated limits.
• CAH Frame Type: Ensures proper fit and compatibility with equipment designed for the CAH series platform.
• Non-Interchangeable Trip Unit: Factory-calibrated trip mechanism delivers dependable thermal-magnetic protection.
• Includes Line and Load-Side Lugs: Supports secure wire connections and straightforward installation.
• 40°C Rating: Built to operate within standard industry temperature conditions.
• Durable Molded Case Construction: Designed for long service life in commercial and industrial environments.

Technical Specifications

• Part Number: CAH3125
  
• Amperage: 125A
  
• Poles: 3
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity (A.I.C.): 22kA @ 240VAC
  
• Frame Type: CAH
  
• Trip Unit: Non-Interchangeable
  
• Operating Temperature Rating: 40°C
  
• Included Accessories: Line and Load-Side Lugs
  
• Approximate Shipping Weight: 4.13 lbs
  
• Approximate Height: 6.5 inches
  

Material Compliance and Certifications

• Industry Standards: The CAH3125 molded case circuit breaker is manufactured to meet applicable industry standards for molded case circuit breakers, supporting safe operation within its rated electrical limits.
• UL and CSA Requirements: Circuit breakers in this class are typically designed and tested in accordance with UL and CSA requirements for low-voltage power distribution equipment. For specific compliance documentation related to your application, verification against project or local code requirements is recommended.
  

Where It Works Best

• The CAH3125 is well suited for use in commercial buildings, light industrial facilities, and institutional properties operating on 240VAC three-phase systems. It is commonly installed in panelboards and distribution equipment requiring a 125 amp, 3 pole breaker with a 22kA interrupting rating. This model is ideal when maintaining or servicing existing electrical infrastructure where matching frame type, mounting configuration, and electrical ratings is critical.