LDC3450L - 450 Amp Circuit Breaker

LDC3450L - 450 Amp Circuit Breaker

The interchangeable trip unit is one detail worth checking when identifying an LDC3450L. The included line and load terminals are another detail to note. Beyond that, this is a 450A, three-pole Type LDC thermal-magnetic circuit breaker, rated at 40°C and HACR-rated. Don't judge the match by amperage alone; also check the poles, LDC type, trip configuration, terminal arrangement, interrupting ratings, and dimensions. When you match it to the equipment, install it properly, and maintain it within its stated ratings, the LDC3450L is built to last.

Key Features and Benefits

• 450A rating: A key specification to confirm against the breaker being replaced and the equipment requirements.
• Three-pole configuration: Another quick checkpoint when identifying the correct LDC configuration.
• Type LDC: An important part of the breaker's identity when matching components in existing or legacy electrical equipment.
• Interchangeable trip unit: A configuration detail that should be checked against the breaker currently in service.
• Thermal-magnetic design: Uses the specified thermal-magnetic protection arrangement.
• Line and load terminals included: This configuration includes both terminal positions, which is useful to know before installation.

Technical Specifications

• Part Number: LDC3450L
  
• Product Type: Thermal-Magnetic Circuit Breaker
  
• Type: LDC
  
• Amperage: 450A
  
• Number of Poles: 3
  
• Protection Type: Thermal-Magnetic
  
• Trip Unit: Interchangeable
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• A.I.C. at 240VAC: 200 kA
  
• A.I.C. at 480VAC: 100 kA
  
• A.I.C. at 600VAC: 50 kA
  
• Line Terminals: Included
  
• Load Terminals: Included
  
• Width: 8.25 in.
  
• Height: 10.75 in.
  
• Depth: 4.06 in.
  
• Overall Dimensions: 8.25" W × 10.75" H × 4.06 "D
  
• Approximate Shipping Weight: 24.00 lbs.
  

Material Compliance and Certifications

The supplied specifications identify the LDC3450L as HACR-rated. No specific UL, CSA, IEC, RoHS, REACH, or other certification or material-compliance information was provided for this exact part number.

Where a particular certification or material standard is required, confirm that requirement for the exact LDC3450L before installation.

Where It Works Best

The LDC3450L 450A 3-pole circuit breaker suits compatible existing and legacy electrical equipment that calls for a Type LDC thermal-magnetic circuit breaker with an interchangeable trip unit. Including both line and load terminals is an important part of this configuration and should be compared with the breaker already in service.