ED3125 - 125 Amp Circuit Breaker

ED3125 - 125 Amp Circuit Breaker

Looking for a dependable solution to protect your electrical system? The Eaton ED3125 Series C molded case circuit breaker is designed to deliver reliable performance where it matters most. This 125 Amp, 3-pole circuit breaker helps safeguard your electrical distribution system from overloads and short circuits, making it a practical choice for maintaining system integrity in commercial and industrial environments.

With ratings of 240VAC and 125VDC and an interrupting capacity of 65 kAIC at 240VAC, this breaker is well-suited for a wide range of demanding applications. It also comes equipped with load terminals, making installation in compatible systems more efficient. Whether you're maintaining existing equipment or upgrading your system, the ED3125 is built to support consistent, long-term performance.

Key Features and Benefits

• 125 Amp complete molded case circuit breaker designed for dependable circuit protection
• Three-pole configuration for use in compatible three-phase systems
• Eaton Series C ED-frame construction for consistent compatibility
• T186 thermal-magnetic trip unit helps respond to overloads and short circuits
• Rated for 240VAC and 125VDC applications
• 65 kAIC interrupting rating at 240VAC for handling high fault conditions
• Includes factory-installed load terminals
• Designed for form, fit, and functional replacement in compatible Eaton equipment
• Suitable for commercial and industrial electrical systems
• UL Listed for recognized safety compliance
  

Technical Specifications

• Manufacturer: Eaton
  
• Catalog Number: ED3125
  
• Product Type: Molded Case Circuit Breaker
  
• Series: Series C
  
• Circuit Breaker Type: ED
  
• Frame Type: Complete Breaker
  
• Frame Size: F Frame
  
• Amperage Rating: 125 Amps
  
• Voltage Rating: 240VAC, 125VDC
  
• Number of Poles: 3
  
• Trip Type: T186 Thermal-Magnetic
  
• Interrupt Rating: 65 kAIC at 240VAC
  
• Terminals: Load
  
• Dimensions:
  • Length: 3.38 in.
  • Width: 4.13 in.
  • Height: 6.00 in.
• Weight: 4.5 lb
  
• UPC: 786679455326
  

Material Compliance and Certifications

The Eaton ED3125 is UL Listed, meaning it meets established safety standards for molded case circuit breakers. For proper performance and compatibility, it’s important to match replacement breakers with the original equipment’s specifications—including frame type, amperage, voltage rating, interrupting capacity, trip unit, pole configuration, and terminal setup. Installation should always be handled by qualified electrical professionals and follow the National Electrical Code (NEC) along with any applicable local regulations.

Where It Works Best

• Panelboards and switchboards designed for Eaton ED-frame breakers
• Manufacturing and processing facilities
• Commercial buildings and office complexes
• HVAC systems and mechanical equipment
• Motor control centers and industrial machinery
• Pumps, compressors, conveyors, and other three-phase equipment
• Maintenance or replacement projects requiring a compatible 125 Amp, 3-pole Series C circuit breaker
• Electrical systems operating at 240VAC or compatible 125VDC where a 65 kAIC interrupting rating is needed