THED124040 - 40Amp Circuit Breaker

THED124040 - 40Amp Circuit Breaker

The THED124040 Circuit Breaker is built for applications where dependable protection is non-negotiable. Rated at 40 amps and designed for 480V systems, this two-pole breaker is engineered to interrupt up to 25kAIC, giving it the strength to manage heavy fault currents with ease. As part of the E150 family of Thermal Magnetic Circuit Breakers and Molded-Case Switches, it offers reliable overload and short-circuit protection in demanding commercial and industrial environments. If you’re looking for a breaker that delivers steady performance while meeting today’s safety standards, this model is a strong fit.

Key Features and Benefits

• Thermal Magnetic Protection: Provides dependable defense against both overloads and short circuits.
• Two-Pole Design: Cuts power to both live and neutral lines at the same time for added safety.
• High Fault Capacity: A 25kAIC rating gives confidence in systems exposed to significant electrical loads.
• Wide Installation Range: Rated for 60/75°C through 100 amps and 75°C above 100 amps, making it adaptable to many setups.
  

Technical Specifications

• Poles: 2
  
• Amperage: 40A
  
• Voltage Rating: 480V
  
• Frame Type: E150
  
• Trip Function: LI (Long-Time, Instantaneous)
  
• Certifications: Meets industry safety standards (not GSA compliant)
  

Material Compliance and Certifications

• Cu/Al Line and Load Lugs: The breaker comes with Cu/Al line and load lugs (identified by the WL catalog number suffix), ensuring secure terminations and compliance with current electrical codes.
  

Suitability

• Manufacturing plants running heavy equipment
  
• Large commercial buildings with complex electrical distribution
  
• Infrastructure projects that cannot risk downtime
  
• Reverse feed applications needing consistent reliability