JDB3125W - 125Amp Circuit Breaker

JDB3125W - 125Amp Circuit Breaker

The JDB3125W is a 125A, three-pole Series C molded-case circuit breaker with one detail to check early in the replacement process: it is supplied without terminals. That matters when matching the breaker to an existing assembly where the terminal arrangement must be handled separately. Its physical dimensions are 12.25 inches long/deep, 6.25 inches high, and 6.75 inches wide, giving you another useful set of measurements to compare with the equipment already in place. The JDB3125W is built to last and is UL Listed, making it a practical choice when the existing or legacy system specifically calls for this form, fit, and electrical configuration.

Key Features and Benefits

• 125A, three-pole configuration: Provides clear electrical identifiers for checking compatibility with an existing installation.
• JDB breaker type: Helps distinguish the exact breaker configuration required by the equipment.
• J frame: An important physical and compatibility reference when sourcing a replacement.
• T186 trip type: Gives you another specific specification to confirm against the breaker being replaced.
• Supplied without terminals: Useful to know before installation because the required terminal arrangement must be verified separately.
• 600VAC / 250VDC rating: Supports equipment specifically designed around these voltage ratings.
  

Technical Specifications

• Catalog Number: JDB3125W
  
• Manufacturer: Eaton
  
• Product Name: Series C complete molded case circuit breaker
  
• Product Type: Molded case circuit breaker
  
• Series: Series C
  
• Circuit Breaker Type: JDB
  
• Frame: J
  
• Circuit Breaker Frame Type: Complete breaker
  
• Amperage Rating: 125A
  
• Number of Poles: 3
  
• Voltage Rating: 600VAC, 250VDC
  
• Frequency Rating: 50/60 Hz
  
• Trip Type: T186
  
• Interrupt Rating at 240VAC: 65 kAIC
  
• Interrupt Rating at 480VAC: 35 kAIC
  
• Terminals: Without terminals
  
• Product Length / Depth: 12.25 in.
  
• Product Height: 6.25 in.
  
• Product Width: 6.75 in.
  
• Product Weight: 10.8 lb
  
• UPC: 786679516256
  
• Certification: UL Listed
  

Material Compliance and Certifications

The JDB3125W is UL Listed, as confirmed by the supplied manufacturer specifications. No additional material or environmental compliance information was provided for this catalog number, so additional certifications are not assumed.

Where It Works Best

The JDB3125W is suited to compatible existing and legacy electrical equipment that specifically requires a 125A, three-pole JDB breaker with a J frame and T186 trip type. Because this version comes without terminals, terminal requirements deserve particular attention when checking form, fit, and functional compatibility.