HNXD63B120 - 1200Amp Circuit Breaker

HNXD63B120 - 1200Amp Circuit Breaker

The HNXD63B120 Siemens Sentron molded-case circuit breaker is a 1200-amp, three-pole breaker designed for your electrical distribution systems where maintaining the correct breaker frame, ratings, and installation requirements is essential. This ND frame circuit breaker features a thermal-magnetic trip unit with a non-interchangeable fixed-trip design. It is commonly used in commercial and industrial applications requiring consistent overload and short-circuit protection.

Key Features and Benefits

• 1200 Amp three-pole molded case circuit breaker
• Thermal magnetic trip unit for overload and short-circuit protection
• ND frame design for compatible replacement applications
• Fixed, non-interchangeable trip configuration
• Rated for 600VAC systems
  
• Meets UL 489 and IEC 60947-2 standards
• Designed for commercial and industrial electrical distribution systems
• Helps maintain existing breaker form, fit, and functional requirements
  

Technical Specifications

• Catalog Number: HNXD63B120
  
• Manufacturer: Siemens
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: ND
  
• Amperage Rating: 1200 Amps
  
• Voltage Rating: 600VAC
  
• Poles: 3
  
• Trip Type: Thermal Magnetic
  
• Trip Design: Fixed / Non-Interchangeable
  
• Interrupt Rating:
  • 50kAIC at 600VAC
  • 65kAIC at 480VAC
• Standards: UL 489 / IEC 60947-2
  
• Dimensions: 9"W x 16"H x 6"D
  
• Product Weight: 54.69 lbs
  
• UPC: 783643252356
  
• Product Family: HND6, 50kAIC, 600VAC
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

The HNXD63B120 Siemens Sentron molded-case circuit breaker is manufactured to meet the UL 489 and IEC 60947-2 standards. It is intended for use in compatible electrical distribution equipment in which the breaker frame, voltage rating, interrupting capacity, trip configuration, and connection requirements match those of the existing system.

Installation should be performed by qualified electrical personnel and completed in accordance with applicable electrical codes, safety practices, and manufacturer guidelines.

Where It Works Best

• Siemens Sentron electrical distribution equipment
• Industrial power distribution systems
• Commercial electrical installations
• Existing ND frame breaker applications
• Feeder circuit protection applications
• Systems requiring a 1200 Amp three-pole breaker
• Applications requiring thermal magnetic overload and short-circuit protection
• Equipment requiring separately selected connection accessories
• Maintenance and replacement projects where matching existing breaker specifications is important