THED124040WL **Older Style** - 40Amp Circuit Breaker

THED124040WL **Older Style** - 40Amp Circuit Breaker

Finding the right replacement for your circuit breaker for an existing electrical system takes more than matching the amperage. The pole configuration, interrupting capacity, trip mechanism, dimensions, and terminal connections must match the original installation's requirements. The THED124040WL Black Face Circuit Breaker is a 40-amp, 2-pole molded case industrial circuit breaker designed for compatible electrical distribution equipment requiring the THED configuration. For electrical contractors, facility maintenance professionals, and electricians working with legacy equipment, these details are essential when evaluating a form-, fit-, and function replacement.

Key Features and Benefits

• 40-Amp, 2-Pole Configuration:
• 25 kAIC Interrupting Rating at 480VAC:
• 65 kAIC Interrupting Rating at 240VAC:
• Non-Interchangeable Thermal-Magnetic Trip Unit:
• Distinctive Black-Face Construction:
• Line and Load-Side Lugs Included:
• Form, Fit, and Function Replacement:

Technical Specifications

• Catalog Number: THED124040WL
  
• Product Identification: THED124040WL Black Face
  
• Product Type: Molded Case Industrial Circuit Breaker
  
• Breaker Type: THED
  
• Face Configuration: Black Face
  
• Amperage: 40 Amps
  
• Number of Poles: 2
  
• Interrupting Capacity at 480VAC: 25 kAIC
  
• Interrupting Capacity at 240VAC: 65 kAIC
  
• Interrupting Rating at 480VAC in Amperes: 25,000 Amperes
  
• Interrupting Rating at 240VAC in Amperes: 65,000 Amperes
  
• Trip Unit Type: Thermal-Magnetic
  
• Trip Unit Interchangeability: Non-Interchangeable
  
• Overload Protection: Thermal
  
• Short-Circuit Protection: Magnetic
  
• Line-Side Lugs: Included
  
• Load-Side Lugs: Included
  
• Terminal Arrangement: Line and Load-Side Lugs Included
  
• Height: 6.31 inches
  
• Width: 4.13 inches
  
• Depth: 3.38 inches
  
• Overall Dimensions: 4.13" W × 6.31" H × 3.38" D
  
• Approximate Shipping Weight: 6.00 lbs.
  

Material Compliance and Certifications

The THED124040WL Black Face 40 Amp Circuit Breaker is a molded-case industrial circuit breaker with interrupting ratings of 25 kAIC at 480VAC and 65 kAIC at 240VAC. Each Rating identifies the short-circuit current the breaker can interrupt at the stated voltage under applicable rating conditions. The supplied product information does not identify a specific UL file number, UL listing classification, CSA certification, or other product approval reference. Where documented electrical certification is required, verify the applicable manufacturer records and equipment markings for the exact THED124040WL black-face configuration.

Where It Works Best

• Legacy Industrial Electrical Systems:
• Existing THED Breaker Replacement:
• Commercial Electrical Distribution Equipment:
• Facility Maintenance and Electrical Repairs:
• Applications Requiring Line and Load-Side Lugs: