LH26400AC - 400A Circuit Breaker

LH26400AC 400A Circuit Breaker

The LH26400AC circuit breaker by Square D is a robust and reliable component designed to protect electrical circuits from overloads and short circuits. Rated at 400 amps, this 2-pole breaker is engineered for both AC and DC applications, with a maximum voltage rating of 600VAC and 250VDC. It features a high interrupting capacity of 25kA for AC and 50kA for DC, making it suitable for demanding environments where high fault currents are a concern. Its thermal-magnetic trip unit provides precise and consistent protection, ensuring safety and reliability in various industrial and commercial settings.

Key Features and Benefits:

• Thermal-Magnetic Protection: The LH26400AC employs thermal sensing for overload protection and magnetic sensing for short circuit protection, ensuring comprehensive safety for your electrical systems.
• High Interrupting Capacity: With interrupting ratings of 25kA at 600VAC and 50kA at 250VDC, this breaker is capable of handling high fault currents, making it ideal for applications with rigorous safety requirements.
• I-Line Construction: Designed for easy installation, the I-Line construction on the line side and lug connections on the load side provide flexibility and efficiency in mounting and wiring.
• Push-to-Trip Feature: This allows manual tripping of the breaker for testing or emergency purposes without exposing any live parts, enhancing user safety.
• Environmental and Safety Compliance: The LH26400AC is compliant with RoHS and REACh standards and features materials free from harmful substances like mercury, PVC, and halogens, aligning with sustainability goals.

Technical Specifications:

• Current Rating: 400 Amps
• Voltage Rating: 600VAC, 250VDC
• Poles: 2
• Interrupting Capacity: 25kA at 600VAC, 50kA at 250VDC
• Connection Type: I-Line on line side, Lugs on load side
• Mounting Mode: I-Line
• Dimensions: Height - 11 in (279.40 mm), Width - 6 in (152.40 mm), Depth - 5.84 in (148.34 mm)
• Magnetic Hold Current: 2000 Amps
• Magnetic Tripping Current: 4000 Amps
• Torque Rating: 115.06 lbf.in (13 N.m)
• Terminal Identifier: AL400LA

Material Compliance and Certifications:

• RoHS/REACh Compliance: Ensures the breaker is free from hazardous substances, meeting European Union regulations for environmental protection.
• UL 489 Certification: Certified for safety and reliability, making it a trusted component for electrical installations.
• CSA and IEC Standards: Adheres to stringent international standards, affirming its suitability for use in a wide range of global applications.
• Sustainable by Design: The breaker is constructed with eco-friendly materials and processes, featuring the Green Premium™ label from Schneider Electric, which underscores its commitment to reducing environmental impact.

Suitability:

• The LH26400AC circuit breaker is suitable for a variety of industrial and commercial applications requiring robust protection and high interrupting capacity. It is particularly effective in scenarios where high fault currents are present and in installations requiring compliance with strict safety and environmental standards. Ideal for use in manufacturing plants, data centers, and other facilities where reliable circuit protection is critical, this breaker ensures continuity and safety of operations.