NAL361000 - 1000 Amp Circuit Breaker

NAL361000 - 1000 Amp Circuit Breaker

If you're replacing an NAL361000 circuit breaker, the details matter. This is an old-style Type NAL, 1000-amp, 3-pole molded-case circuit breaker with a thermal-magnetic trip and feed-through configuration. One of the easiest ways to identify this particular setup is by the mounting arrangement: it has mounting legs on both the line and load sides. The breaker measures 19.5 inches high, 11.75 inches wide, and 5.75 inches deep. Its interrupting ratings are 25k AIC at 600VAC, 50k AIC at 480VAC, and 100k AIC at 240VAC. For an existing electrical system that was designed around this NAL configuration, matching those specifications is important. Before installation, check the part number, dimensions, mounting style, amperage, poles, voltage, and AIC rating against the existing breaker and equipment requirements. The NAL361000 was built for demanding electrical service and, when properly applied and maintained, is built to last.

Key Features and Benefits

• 1000 amp, 3-pole configuration for equipment requiring these specific electrical characteristics.
• Thermal-magnetic trip provides overload and short-circuit protection.
• Feed-through design with mounting legs on both the line and load sides.
• Type NAL old-style construction for compatibility with electrical equipment designed around this breaker configuration.
• Rated 25k AIC at 600VAC, 50k AIC at 480VAC, and 100k AIC at 240VAC.
• Clearly defined dimensions make it easier to compare the breaker with the space and mounting arrangement of an existing installation.
• Built to last when correctly selected, installed, and maintained for its intended application.

Technical Specifications

• Part Number: NAL361000
  
• Type: NAL
  
• Breaker Type: Molded Case Circuit Breaker
  
• Trip: Thermal-Magnetic
  
• Configuration: Feed-Thru
  
• Poles: 3
  
• Amperage: 1000A
  
• AIC Rating: 25k @ 600VAC
  
• AIC Rating: 50k @ 480VAC
  
• AIC Rating: 100k @ 240VAC
  
• Dimensions:
  • Height: 19.5 in.
  • Width: 11.75 in.
  • Depth: 5.75 in.
• Mounting: Legs on Line and Load Sides
  

Material Compliance and Certifications

• The available specifications for the NAL361000 do not include specific material-compliance information or certification details. Do not assume UL, CSA, RoHS, or other certifications without supporting documentation. If the application requires a particular certification or listing, check the breaker markings and the applicable equipment documentation.

Where It Works Best

• The NAL361000 is intended for existing electrical equipment that calls for this particular old-style Type NAL breaker configuration. It is especially relevant when the installation requires a 1000A, three-pole breaker with the same physical footprint and feed-through mounting arrangement.
  
• With older electrical equipment, amperage alone isn't enough to determine compatibility. The breaker must also match the required voltage and AIC ratings, dimensions, pole count, mounting arrangement, and overall configuration.
  
• That's why the NAL361000 is best considered a form, fit, and functional replacement for equipment designed to use this breaker type. Before installation, compare the specifications and nameplate information with the existing breaker and electrical equipment. Qualified electrical personnel should confirm final compatibility and installation.