LD63B300 - 300Amp Circuit Breaker

LD63B300 - 300Amp Circuit Breaker

The Siemens LD63B300 Low Voltage Sentron Molded Case Circuit Breaker is a robust and reliable solution designed for commercial and industrial electrical systems. Featuring a thermal-magnetic trip unit, this circuit breaker ensures optimal performance and protection against overcurrent and short circuits. With a standard operating temperature of 40å¡C, the LD63B300 is engineered to meet UL 489 and IEC 60947-2 standards, providing assured safety and compliance in various electrical applications.

Key Features and Benefits:

• Thermal-Magnetic Trip Unit: Combines both thermal and magnetic tripping mechanisms for precise and reliable protection.
• High Breaking Capacity: Capable of interrupting currents up to 25 kAIC at 600V and 35 kAIC at 480V, making it suitable for demanding environments.
• Versatile Connectivity: Equipped with line and load side lugs (TA2J6500), accommodating a wide wire range from 3/0 AWG to 500 KCM (CU) and 4/0 AWG to 500 KCM (AL).
• Compact Dimensions: Measures 7.5 x 11 x 4 inches, allowing for easy integration into existing panels and switchboards.
• Enhanced Safety and Compliance: Meets stringent UL 489 and IEC 60947-2 standards, ensuring reliable operation and peace of mind.

Technical Specifications:

• Current Rating: 300A
• Poles: 3
• Voltage Rating: 600V
• Breaking Capacity: 25 kAIC at 600V, 35 kAIC at 480V
• Temperature Rating: 40å¡C
• Dimensions (W x H x D): 7.5 x 11 x 4 inches
• Wire Range: 3/0 AWG - 500 KCM (CU), 4/0 AWG - 500 KCM (AL)
• Net Weight: 20.701 lb

Material Compliance and Certifications:

• Compliance: The Siemens LD63B300 circuit breaker adheres to UL 489 and IEC 60947-2 standards, ensuring high levels of safety and performance. Additionally, it complies with the RoHS directive, affirming its environmental sustainability by restricting the use of hazardous substances in electrical and electronic equipment.

Suitability:

• Ideal for use in commercial and industrial applications, the Siemens LD63B300 circuit breaker offers robust protection and reliability. Its high breaking capacity makes it suitable for environments with high fault currents, while its compliance with international standards ensures it meets the rigorous demands of modern electrical systems.

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