TJD422400WL **Older Style** - 400Amp Circuit Breaker

TJD422400WL **Older Style** - 400 Amp Circuit Breaker

The TJD422400WL Older Style Black Face molded case circuit breaker is designed for dependable circuit protection in your commercial and industrial electrical distribution systems that require a 400-amp, 2-pole configuration. Built as part of the trusted Q-Line series, this breaker features an internal common trip mechanism that helps you to disconnect both poles simultaneously during overloads or short circuits, supporting safer system operation and equipment protection. Its cable-in/cable-out lug-lug design simplifies installation in compatible switchboards, panelboards, and distribution equipment that require direct cable termination.

This TJD-type circuit breaker is commonly used in applications where maintaining compatibility with existing electrical infrastructure is important. The included line-side and load-side lugs help streamline replacement and installation work while reducing the need for additional accessories. With a 22k A.I.C. rating at 240VAC and an HACR rating, the breaker is well-suited for HVAC equipment, heavy-duty commercial systems, manufacturing facilities, and other demanding environments where reliable overcurrent protection is essential. Built with durability in mind, the TJD422400WL continues to serve as a practical, form-, fit-, and function-compatible replacement for legacy systems using compatible GE Q-Line equipment.

Key Features and Benefits

• 400 Amp Continuous Current Rating: Designed for high-capacity electrical distribution applications in commercial and industrial systems.
• 2-Pole Configuration: Designed for compatible 240VAC systems requiring dependable overcurrent protection.
• 22k A.I.C. Rating at 240VAC: Supports interruption of available fault currents within rated limits.
• Older Style Black Face Design: Provides compatibility with existing installations and legacy equipment layouts.
• Internal Common Trip Mechanism: Helps disconnect both poles simultaneously during a fault condition.
• Cable-in/Cable-out (Lug-Lug) Construction: Allows direct cable termination, simplifying installation.
• Includes Line-Side and Load-Side Lugs: Adds installation convenience and helps reduce the need for additional accessories.
• HACR Rated: Suitable for use in heating, air conditioning, and refrigeration applications.
• Manufactured for Long-Term Service: Built for dependable operation in commercial and industrial electrical systems.
  

Technical Specifications

• Manufacturer Series: Q-Line
  
• Part Number: TJD422400WL
  
• Breaker Type: Molded Case Circuit Breaker
  
• Type Designation: TJD
  
• Poles: 2
  
• Amperage: 400A
  
• Voltage Rating: 240VAC
  
• A.I.C. Rating: 22kA @ 240VAC
  
• Trip Type: Internal Common Trip
  
• Connection Type: Cable-in/Cable-out (Lug-Lug)
  
• Included Accessories: Line and Load-Side Lugs
  
• HACR Rated: Yes
  
• Face Style: Older Style Black Face
  
• Dimensions:
  • Height: 10.13 in
  • Width: 8.25 in
  • Depth: 3.81 in

Material Compliance and Certifications

• HACR Rated: Approved for HVAC-related applications including heating, air conditioning, and refrigeration systems.
• Commercial and Industrial Use: Designed and manufactured for use in compatible commercial and industrial electrical distribution systems.
• Molded Case Construction: Helps provide insulation and protection in demanding operating environments.
• Professional Installation Recommended: Intended for installation and servicing by qualified electrical professionals following applicable electrical codes and standards.
  

Where It Works Best

• The TJD422400WL is well-suited for commercial buildings and facilities, industrial power distribution systems, HVAC and refrigeration equipment disconnect protection, manufacturing equipment panels, distribution boards and switchgear assemblies, and legacy Q-Line electrical systems requiring compatible replacement breakers. It is also commonly used in electrical maintenance projects focused on maintaining existing system configurations without major modifications.