ED3125 - 125 Amp Circuit Breaker

ED3125 - 125 Amp Circuit Breaker

The ED3125 molded case circuit breaker is designed to provide dependable circuit protection in commercial and industrial electrical systems. Built as part of the Series C ED breaker line, this 125-amp, three-pole breaker helps protect equipment and wiring from overloads and short circuits before damage can occur. Its 65 kA interrupting rating at 240 VAC allows it to safely clear high fault currents, helping maintain system stability and reduce the risk of costly downtime. With a compact molded case design and durable internal components, the ED3125 is well-suited for applications where consistent performance and long service life are important. The breaker uses a T186 trip unit to deliver accurate and repeatable tripping when abnormal current conditions occur. It supports 240 VAC and 125 VDC systems, making it useful in a variety of distribution setups. Electricians and facility maintenance teams often rely on breakers in the ED Series when maintaining or upgrading existing electrical infrastructure because they are known for dependable operation and straightforward installation.

Key Features and Benefits

• 125 Amp current rating suitable for many commercial and industrial power distribution needs
• Three-pole breaker design for three-phase electrical systems
• 65 kAIC interrupting rating at 240 VAC helps protect equipment during fault conditions
• T186 trip unit designed for consistent overload and short-circuit protection
• Series C ED frame construction known for reliability in demanding environments
• Line and load terminals for straightforward installation and secure connections
• Compact molded case design fits easily in compatible electrical distribution equipment

Technical Specifications

• Catalog Number: ED3125
  
• Product Type: Molded Case Circuit Breaker
  
• Series: Series C
  
• Circuit Breaker Type: ED
  
• Frame Type: F Frame (Complete Breaker)
  
• Amperage Rating: 125 A
  
• Voltage Rating: 240 VAC / 125 VDC
  
• Interrupt Rating: 65 kAIC at 240 VAC
  
• Trip Type: T186
  
• Number of Poles: 3
  
• Terminals: Line and Load
  
• Product Dimensions:
  • Depth: 3.38 in
  • Height: 6 in
  • Width: 4.13 in
• Weight: 4.5 lb
  
• UPC: 786679455326
  

Material Compliance and Certifications

• UL Listed, meeting recognized safety standards for molded case circuit breakers used in electrical distribution systems.

Where It Works Best

• The ED3125 circuit breaker is commonly installed in commercial buildings, manufacturing facilities, and industrial electrical distribution systems where reliable circuit protection is essential. It works well in panelboards, switchboards, and other power distribution equipment that require a 125-amp, three-pole breaker with a high interrupting capacity. This model is especially useful for maintaining or replacing breakers in systems that utilize Series C ED-frame components, helping keep electrical infrastructure operating safely and efficiently.