DK2400W - 400Amp Circuit Breaker

DK2400W - 400Amp Circuit Breaker

When a critical electrical system depends on the correct replacement breaker, compatibility matters. The DK2400W Eaton Series C molded case circuit breaker is a 400 Amp, 2-pole K-Frame breaker designed to provide overcurrent protection in commercial and industrial power distribution systems. Whether you're maintaining existing equipment, replacing a failed breaker, or supporting a facility modernization project, this breaker helps preserve the original design characteristics of the electrical system without requiring major modifications.

The DK2400W features a T186 thermal magnetic trip unit, which helps protect electrical equipment from overloads and short-circuit conditions. Rated for 240 VAC and 250 VDC applications, it offers an interrupting capacity of 65kAIC at 240 VAC and 10kAIC at 250 VDC, making it suitable for a variety of demanding power distribution environments. A built-in 12-24 VAC/DC rear-mounted shunt trip with right pigtail provides remote tripping capability for systems that require emergency shutdown functionality or integration with control and safety circuits.

Because it belongs to the Series C K-Frame family, the DK2400W fits applications originally designed around that platform. For maintenance personnel and electrical contractors, that can simplify replacement work by avoiding unnecessary modifications to switchgear, panelboards, or distribution equipment. Built to last and designed for long-term service, this breaker continues to be a dependable solution for commercial buildings, manufacturing facilities, institutional campuses, and other environments where reliable power distribution is essential.

Key Features and Benefits

• 400 Amp continuous current rating
• Two-pole molded case circuit breaker
• Eaton Series C K-Frame design
• T186 thermal magnetic trip unit
• 65kAIC interrupting capacity at 240 VAC
• 10kAIC interrupting capacity at 250 VDC
• Complete breaker assembly
• Rear-mounted 12-24 VAC/DC shunt trip with right pigtail
• Rated for 50/60 Hz electrical systems
• Helps protect equipment and conductors from overloads and short circuits
• Commonly used in commercial and industrial power distribution systems
• Suitable for maintenance, repair, and replacement applications
• Maintains compatibility with existing Series C K-Frame installations
• Built to last in demanding electrical environments
• Supplied without terminals for applications requiring specific terminal configurations

Technical Specifications

• Catalog Number: DK2400W
  
• Product Type: Molded Case Circuit Breaker
  
• Series: Series C
  
• Circuit Breaker Type: DK
  
• Frame Size: K-Frame
  
• Breaker Configuration: Complete Breaker
  
• Amperage Rating: 400 Amps
  
• Number of Poles: 2
  
• Voltage Rating: 240 VAC, 250 VDC
  
• Trip Type: T186 Thermal Magnetic
  
• Interrupting Capacity: 65kAIC @ 240 VAC
  
• Interrupting Capacity (DC): 10kAIC @ 250 VDC
  
• Frequency Rating: 50/60 Hz
  
• Shunt Trip: 12-24 VAC/DC Rear Mounted with Right Pigtail
  
• Terminal Configuration: Without Terminals
  
• Length/Depth: 4.1 in.
  
• Height: 5.5 in.
  
• Width: 5.5 in.
  
• Weight: 10.2 lbs.
  
• UPC: 786679044650
  

Material Compliance and Certifications

• UL Listed: Manufactured as part of the Eaton Series C molded case circuit breaker family.
• Application Requirements: Designed for use in electrical distribution systems requiring properly rated overcurrent protection.
• Code Compliance: Intended for installation in accordance with applicable electrical codes and equipment specifications.
• Installation Guidance: Suitable for installation and servicing by qualified electrical professionals.
• Special Configuration: Designed for applications requiring a molded case thermal magnetic circuit breaker with remote shunt trip functionality.
  

Where It Works Best

• Commercial electrical distribution systems
• Industrial manufacturing facilities
• Institutional and government buildings
• Mechanical equipment power distribution
• Feeder circuit protection applications
• Switchboard and panelboard installations
• Electrical maintenance and repair projects
• Facility refurbishment and modernization programs
• Existing Eaton Series C K-Frame systems requiring compatible replacement breakers
• Applications requiring remote tripping through a low-voltage shunt trip
• Systems requiring 400 Amp, 2-pole overcurrent protection with 65kA interrupting capacity

For facilities operating equipment originally designed around Series C K-Frame circuit breakers, the DK2400W provides a compatible replacement solution that helps maintain original electrical ratings, physical fitment requirements, and intended protection characteristics while preserving the existing system configuration.