LDC3300 - 300 Amp Circuit Breaker

LDC3300 - 300 Amp Circuit Breaker

With the LDC3300, the numbers tell only part of the story. This Eaton Series C complete molded case circuit breaker is rated at 300A and uses a three-pole, L-frame configuration, but its voltage and interrupting ratings are just as important when you’re trying to match a breaker already in service. For existing and legacy electrical equipment, checking all of these details together makes far more sense than matching on amperage alone. When the LDC3300’s form, fit, ratings, and function match the application—and the breaker is correctly installed and maintained within its stated specifications—it is built to last.

Key Features and Benefits

• 300A current rating: Gives you the exact amperage specification to compare with the breaker and equipment already in service.
• Three-pole configuration: Designed around the three-pole arrangement specified for the LDC3300.
• 600VAC and 250VDC voltage ratings: Clearly documented voltage specifications make application matching more straightforward.
• Series C LDC configuration: The Series C and LDC designations are important identifiers when checking compatibility with existing or legacy equipment.
• L frame: Provides another specific form-and-fit reference when identifying the correct breaker.
• T186 trip type: Eaton’s stated trip designation should be checked along with the frame, amperage, and other electrical specifications.

Technical Specifications

• Catalog Number: LDC3300
  
• UPC: 786679046272
  
• Manufacturer: Eaton
  
• Product Name: Series C Complete Molded Case Circuit Breaker
  
• Product Type: Molded Case Circuit Breaker
  
• Type: Complete Breaker
  
• Series: Series C
  
• Circuit Breaker Type: LDC
  
• Circuit Breaker Frame Type: Complete Breaker
  
• Frame: L
  
• Amperage Rating: 300 A
  
• Voltage Rating: 600 VAC, 250 VDC
  
• Number of Poles: 3
  
• Trip Type: T186
  
• Frequency Rating: 50–60 Hz
  
• Interrupt Rating at 240VAC: 200 kAIC
  
• Interrupt Rating at 480VAC: 100 kAIC
  
• Terminals: Load
  
• Terminal Material: Aluminum
  
• Product Height: 10 in.
  
• Product Width: 10 in.
  
• Product Length/Depth: 8 in.
  
• Product Weight: 21 lb
  
• Certification: UL 489
  

Material Compliance and Certifications

The supplied manufacturer specifications identify UL 489 certification for the Eaton LDC3300. This gives you a documented certification point to check when UL 489 compliance is required for the intended equipment or installation.

Where It Works Best

The Eaton LDC3300 300A 3-pole molded case circuit breaker is best suited for compatible existing and legacy electrical equipment that requires its specific Series C LDC configuration, L frame, T186 trip type, voltage ratings, and interrupting capacities. The included aluminum load terminals also support compatibility, especially when replacing a breaker in equipment with an established connection arrangement.