LD63B300L - 300Amp Circuit Breaker

LD63B300L - 300Amp Circuit Breaker

The Siemens LD63B300L is a robust and reliable low voltage Sentron molded case circuit breaker, equipped with a thermal-magnetic trip unit. This circuit breaker is designed to ensure optimal performance and safety in both commercial and industrial applications. With its 300A current rating, it is engineered to handle substantial electrical loads, providing superior protection against overloads and short circuits. Its compact dimensions of 7.5 x 11 x 4 inches make it suitable for various installation environments, offering both flexibility and space efficiency.

Key Features and Benefits:

• Thermal-Magnetic Trip Unit: Ensures precise protection by combining both thermal and magnetic tripping mechanisms, effectively responding to different types of faults.
• Standard LD Frame: Provides a standard breaking capacity, making it a versatile choice for a wide range of electrical applications.
• High Breaking Capacity: With a breaking capacity of 25kAIC at 600V and 35kAIC at 480V, it guarantees reliable performance under high fault conditions.
• Line and Load Side Lugs: Equipped 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 easy and secure connections.
• Compliance: Meets UL 489 and IEC 60947-2 standards, ensuring it adheres to stringent safety and performance requirements.

Technical Specifications:

• Current Rating: 300A
• Poles: 3
• Breaking Capacity: 25kAIC at 600V, 35kAIC at 480V
• Dimensions: 7.5 inches (W) x 11 inches (H) x 4 inches (D)
• Wire Range: 3/0 AWG - 500 KCM (CU), 4/0 AWG - 500 KCM (AL)
• Operating Temperature: Standard 40å¡C

Material Compliance and Certifications:

• The Siemens LD63B300L circuit breaker is compliant with RoHS directives, ensuring it is free from hazardous substances. It also adheres to the WEEE (2012/19/EU) take-back obligation, emphasizing Siemens' commitment to environmental sustainability and responsible recycling practices. While specific information about the absence of certain restricted substances is not available, Siemens' adherence to international standards underscores the product's safety and reliability.

Suitability:

• This circuit breaker is ideal for use in a variety of settings, including commercial buildings, industrial plants, and large residential complexes. Its high breaking capacity and versatile wire range make it suitable for protecting critical electrical systems against faults, ensuring both operational efficiency and safety.

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