LDB3350W - 350Amp Circuit Breaker

LDB3350W - 350Amp Circuit Breaker

When you’re trying to match the LDB3350W, don’t stop at the 350A rating. A few details set this breaker apart, and the 115V Mil-Spec HI shock shunt trip with 50-inch pigtail leads is one of them. This is an Eaton Series C LDB molded case circuit breaker built on an L frame, with three poles and a T186 trip type. The LDB3350W is built to last when properly matched, installed, and maintained. For legacy equipment in particular, checking the whole configuration—rather than relying on amperage alone—is the sensible way to determine form, fit, and functional compatibility.

Key Features and Benefits

• 350A, three-pole configuration: The basic electrical configuration to verify first when matching an existing breaker.
• Series C LDB design: The series, breaker type, and frame help narrow compatibility with existing equipment.
• L frame: An important part of identifying the correct physical and functional configuration.
• T186 trip type: Another specific detail to compare with the breaker being replaced.
• 50–60 Hz frequency rating: Provides a clearly defined frequency range for application matching.

Technical Specifications

• Catalog Number: LDB3350W
  
• UPC: 786679148310
  
• Manufacturer: Eaton
  
• Product Type: Molded Case Circuit Breaker
  
• Series: Series C
  
• Circuit Breaker Type: LDB
  
• Frame: L
  
• Frame Type: Complete Breaker
  
• Amperage Rating: 350A
  
• Number of Poles: 3
  
• Trip Type: T186
  
• Shunt Trip: Mil-Spec HI shock, 115V with 50 in. pigtail leads
  
• Frequency Rating: 50–60 Hz
  
• Interrupt Rating at 240VAC: 65 kAIC
  
• Interrupt Rating at 480VAC: 35 kAIC
  
• Terminals: Without terminals
  
• Height: 8.25 in.
  
• Width: 8.25 in.
  
• Length/Depth: 4.06 in.
  
• Product Weight: 20 lb
  

Material Compliance and Certifications

The LDB3350W carries UL 489 certification. The specifications provided for this product did not include CSA, IEC, RoHS, REACH, or other material-compliance information, so do not assume additional certifications or declarations.

Where It Works Best

The LDB3350W makes the most sense for compatible existing or legacy electrical equipment that calls for a 350A, three-pole Series C LDB molded case circuit breaker with an L frame and T186 trip type.