TJK426400WL **Older Style** 400A Circuit Breaker

TJK426400WL **Older Style** 400A Circuit Breaker

The TJK426400WL is a top-tier thermal magnetic circuit breaker from ABB's J600 series, engineered to provide robust protection and reliable performance for various electrical systems. Designed to handle up to 400 Amperes with a system voltage range from 120 to 600 Volts AC, this breaker ensures seamless operation in both residential and commercial applications. Its high interrupting capacity of up to 42 kAIC at 240 Vac makes it an ideal choice for high fault current environments, ensuring maximum safety and system integrity. With a focus on both flexibility and durability, the TJK426400WL features interchangeable trip units, allowing for tailored protection and ease of maintenance.

Key Features and Benefits:

• High Current Capacity: Supports a range of 125 to 400 Amperes, catering to a wide array of electrical demands.
• Wide Voltage Range: Compatible with systems ranging from 120 Vac to 600 Vac, providing versatile application options.
• Robust Interrupting Ratings: Offers high interrupting capacities of 42 kAIC at 240 Vac and 22 kAIC at 600 Vac, ensuring safety in high fault conditions.
• Thermal Magnetic Protection: Combines both thermal and magnetic trip mechanisms for precise overload and short-circuit protection.
• Interchangeable Trip Units: Facilitates customized protection settings and easy replacements without the need for complete breaker removal.
• Cu/Al Lugs: Equipped with copper/aluminum line and load lugs for enhanced conductivity and installation flexibility.

Technical Specifications:

• Amperage Rating: 400 A
• System Voltage Ratings: 120 Vac, 120/240 Vac, 125 Vdc, 240 Vac, 250 Vdc, 277 Vac, 480 Vac, 600 Vac
• Interrupting Capacity: 42 kAIC at 120/240 Vac,åÊ10 kAIC at 125 Vdc,åÊ30 kAIC at 277 Vac and 480 Vac,åÊ22 kAIC at 600 Vac
• Poles: 2
• Trip Function: Long-time and instantaneous, with adjustable settings
• Frame Type: J600
• Lugs: Suitable for TC043, TCAL43, and TCAL47

Material Compliance and Certifications:

• UL Listed: Ensures compliance with stringent safety standards (UL File # E11592).
• CSA Certified: Meets Canadian standards for safety and performance (CSA File # LR40350).
• GSA Compliance: This breaker adheres to General Services Administration specifications, providing an additional layer of trust and reliability.

Suitability:

• The TJK426400WL is ideal for applications requiring high performance and dependability, such as industrial facilities, commercial buildings, and critical infrastructure systems. Its compatibility with a wide voltage range and high interrupting capacity makes it suitable for environments where safety and operational integrity are paramount. The breaker‰۪s interchangeable trip units and copper/aluminum lugs further enhance its versatility and ease of installation, making it a preferred choice for both new installations and retrofit projects.

The TJK426400WL Circuit Breaker is a high-performance solution for your electrical protection needs, designed to deliver reliability and safety in various demanding environments. Explore more about this essential breaker to ensure your systems remain secure and efficient.