ND63B120L - 1200Amp Circuit Breaker

ND63B120L - 1200Amp Circuit Breaker

The Siemens ND63B120L is a high-performance low voltage Sentron molded case circuit breaker featuring a thermal-magnetic trip unit. Designed for rigorous industrial applications, this breaker ensures reliable protection with its ND frame and standard breaking capacity. With a current rating of 1200A and a robust 3-pole configuration, the ND63B120L delivers exceptional performance and durability. Its line and load side lugs (TA4N8500) accommodate a wide wire range of 250-500 KCM (Cu/Al), making it versatile for various installations. Complying with UL 489 and IEC 60947-2 standards, this breaker is engineered to meet the highest safety and quality standards.

Key Features and Benefits

• High Current Rating: Supports up to 1200A, suitable for demanding industrial environments.
• Thermal-Magnetic Trip Unit: Provides reliable overcurrent protection.
• Standard Breaking Capacity: Ensures consistent performance under fault conditions.
• Wide Wire Range: Accommodates wire sizes from 250 to 500 KCM, offering flexibility in installations.
• Line and Load Side Lugs: Simplifies installation and connection processes.

Technical Specifications

• Frame Type: ND Frame
• Trip Unit: Thermal-Magnetic
• Current Rating: 1200A
• Poles: 3
• Breaking Capacity: 25kAIC at 600V, 50kAIC at 480V
• Wire Range: 250 - 500 KCM (Cu/Al)
• Dimensions (W x H x D): 9 x 16 x 6 inches
• Net Weight: 65.984 lbs

Material Compliance and Certifications

• Standards: Meets UL 489 and IEC 60947-2 standards

Suitability

• The Siemens ND63B120L is ideal for industrial applications requiring high current protection. Its robust construction and compliance with international standards make it suitable for use in manufacturing plants, commercial buildings, and utility installations. The thermal-magnetic trip unit provides precise protection against overcurrent, ensuring safety and reliability in critical operations.

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