LD63B400L - 400Amp Circuit Breaker

LD63B400L - 400Amp Circuit Breaker

The Siemens LD63B400L is a top-tier low voltage Sentron molded case circuit breaker designed for high performance and reliability in a variety of applications. This 400A, 3-pole circuit breaker, equipped with a thermal-magnetic trip unit, meets stringent UL 489 and IEC 60947-2 standards, ensuring optimal safety and compliance. With its robust LD frame and standard breaking capacity, this circuit breaker is engineered to deliver superior protection and durability.

Key Features and Benefits:

• Thermal-Magnetic Trip Unit: Ensures accurate and reliable protection against overloads and short circuits, enhancing the safety of your electrical system.
• Standard 40å¡C Breaker: Rated for operation in environments up to 40 degrees Celsius, maintaining performance stability in varying conditions.
• High Breaking Capacity: Offers 25KAIC at 600V and 35KAIC at 480V, making it suitable for demanding industrial applications.
• Line and Load Side Lugs: Comes with TA2J6500 lugs that support a wide wire range from 3/0 AWG to 500 KCM for copper and 4/0 AWG to 500 KCM for aluminum, ensuring flexible installation options.
• Compact Dimensions: Measures 7.5 x 11 x 4 inches, allowing for efficient space utilization within panels and enclosures.

Technical Specifications:

• Amperage: 400A
• Poles: 3
• Breaking Capacity: 25KAIC at 600V, 35KAIC at 480V
• Standards Compliance: UL 489, IEC 60947-2
• Dimensions: 7.5 inches (W) x 11 inches (H) x 4 inches (D)
• Wire Range: Copper: 3/0 AWG - 500 KCM, Aluminum: 4/0 AWG - 500 KCM
• Weight: 19.533 lbs

Material Compliance and Certifications:

• Compliance: The Siemens LD63B400L circuit breaker complies with key safety and performance standards, including UL 489 and IEC 60947-2. While it meets these critical benchmarks, it is important to note that specific details on RoHS compliance were not available. However, Siemens is known for its commitment to high environmental and safety standards across its product lines.

Suitability:

• This circuit breaker is ideal for a wide range of applications, including commercial, industrial, and utility sectors. Its robust design and high breaking capacity make it suitable for protecting electrical circuits in harsh and demanding environments. Whether used in manufacturing facilities, data centers, or utility substations, the LD63B400L provides reliable protection and operational efficiency.

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