NAL36900 - 900 Amp Circuit Breaker

NAL36900 - 900 Amp Circuit Breaker

When you're working with an existing electrical system, finding a circuit breaker with the right form, fit, and electrical ratings matters. The NAL36900 is a 900-amp, 3-pole Type NAL molded-case circuit breaker with an old-style feed-through configuration and mounting legs on both the line and load sides. It uses a thermal-magnetic trip design and carries interrupting ratings of 25k AIC at 600VAC, 50k AIC at 480VAC, and 100k AIC at 240VAC. At approximately 12.12 inches high, 14.98 inches wide, and 8.07 inches deep, the NAL36900 is especially useful for maintaining legacy equipment where the original breaker footprint and mounting arrangement must match closely. In other words, this isn't about changing a system simply for the sake of change—it's about finding the correct breaker for an application that calls for these specific NAL characteristics. Its substantial molded-case construction is built to last. At the same time, the clearly defined amperage, voltage, AIC, and dimensional specifications make it easier to determine whether the NAL36900 fits the requirements of your existing equipment.

Key Features and Benefits

• 900A, 3-pole configuration for compatible electrical distribution applications.
• The old-style Type NAL design helps meet form-and-fit requirements in legacy equipment.
• Feed-through configuration with mounting legs located on both the line and load sides.
• Thermal-magnetic operation provides the trip configuration specified for this breaker design.
• Multiple interrupting ratings—25k AIC at 600VAC, 50k AIC at 480VAC, and 100k AIC at 240VAC.
• Defined physical dimensions make it easier to compare the breaker against the available space and mounting arrangement in existing equipment.
• The molded case provides a substantial enclosure designed for its intended electrical application.
• Built to last as an electrical component when correctly matched to its intended application.

Technical Specifications

• Part Number: NAL36900
  
• Type: NAL
  
• Style: Old-Style, Feed-Thru
  
• Breaker Type: Molded Case Circuit Breaker
  
• Trip Type: Thermal-Magnetic
  
• Poles: 3
  
• Amperage: 900A
  
• AIC @ 600VAC: 25k
  
• AIC @ 480VAC: 50k
  
• AIC @ 240VAC: 100k
  
• Dimensions:
  • Height: 12.12 in.
  • Width: 14.98 in.
  • Depth: 8.07 in.
• Mounting: Feed-through; mounting legs on line and load sides.
  

Material Compliance and Certifications

• The available specifications for the NAL36900 did not include specific material compliance information, certification numbers, listing details, or certification marks. Because these details can matter for code compliance and facility requirements, don't assume them based solely on the model number or breaker type. Check the markings and documentation associated with the individual breaker when certification or material-compliance requirements apply.

Where It Works Best

• The NAL36900 900A 3-pole circuit breaker makes the most sense in legacy electrical equipment that requires the old-style Type NAL feed-through configuration. It can be especially relevant for maintenance and replacement situations where the goal isn't to change the surrounding equipment—it's to match the required breaker characteristics as closely as possible.
  
• That means checking more than the 900A rating. The three-pole configuration, feed-through mounting arrangement, physical dimensions, voltage, and applicable interrupting capacity must match the existing system's requirements. When those characteristics match, the NAL36900 provides the familiar form and function required by compatible NAL applications.
  
• As with any circuit breaker replacement, qualified electrical personnel should verify suitability against the specific equipment and electrical system requirements before installation.