NAL361200 - 1200 Amp Circuit Breaker

NAL361200 - 1200 Amp Circuit Breaker

Replacing a circuit breaker in your existing electrical system takes more than matching the ampere rating—frame design, mounting arrangement, physical dimensions, and interrupting capacity all matter. And when you're working with older electrical equipment, even a small difference in mounting provisions can turn a straightforward replacement into a complicated job.

One of the most important details is its interrupting capacity. The NAL361200 has specified ratings of 25,000 amps at 600VAC, 50,000 amps at 480VAC, and 100,000 amps at 240VAC. These ratings indicate the maximum prospective fault current the breaker is rated to interrupt at each stated voltage, under the applicable rating conditions. Check the available fault current at the installation against the appropriate rating before selecting the breaker.

Key Features and Benefits

• 1200 Amp Current Rating
• 3-Pole Configuration
• Type NAL Circuit Breaker
• Old-Style NAL Design
• Molded Case Construction
• Thermal-Magnetic Trip Protection
• Overload Protection
• Short-Circuit Protection
• Feed-Through Mounting Arrangement
• Line-Side and Load-Side Mounting Legs
• Defined Physical Dimensions
• Legacy Electrical Equipment Compatibility

Technical Specifications

• Part Number: NAL361200
  
• Product Category: Circuit Breaker
  
• Subcategory: Molded Case Circuit Breaker
  
• Type: NAL
  
• Design: Old-Style NAL
  
• Amperage: 1200 Amps
  
• Number of Poles: 3
  
• Trip Mechanism: Thermal-Magnetic
  
• Circuit Breaker Construction: Molded Case
  
• Mounting Arrangement: Feed-Through
  
• Mounting Leg Locations: Line and Load Sides
  
• Interrupting Rating at 600VAC: 25,000 Amps (25kA)
  
• Interrupting Rating at 480VAC: 50,000 Amps (50kA)
  
• Interrupting Rating at 240VAC: 100,000 Amps (100kA)
  
• Highest Stated Voltage Rating: 600VAC
  
• Height: 19.5 inches
  
• Width: 11.75 inches
  
• Depth: 5.75 inches
  
• Overall Dimensions (H × W × D): 19.5" × 11.75" × 5.75"
  
• Approximate Shipping Weight: 60.00 lbs.
  

Material Compliance and Certifications

The NAL361200 is identified as an old-style Type NAL molded case circuit breaker with a thermal-magnetic trip mechanism and a feed-through mounting arrangement. Its mounting legs are located on both the line and load sides, making the physical configuration an important part of any replacement evaluation.

Likewise, the supplied information does not confirm a specific UL listing, CSA certification, or other product approval. Verify those details in the manufacturer's technical documentation and on the actual breaker.

Where It Works Best

• Legacy Electrical Distribution Systems
• Existing Type NAL Installations
• Commercial Electrical Facilities
• Industrial Electrical Distribution
• Manufacturing Plant Maintenance
• Established Electrical Equipment
• Three-Pole Circuit Protection
• 1200 Amp Circuit Applications
• Feed-Through Breaker Installations
• Old-Style Circuit Breaker Replacement
• Facility Electrical Maintenance
• Form, Fit, and Function Replacement Projects