NCL36900 - 900 Amp Circuit Breaker

NCL36900 - 900 Amp Circuit Breaker

The NCL36900 is a 900-amp, 3-pole molded-case circuit breaker with a thermal-magnetic trip and a cable-in/cable-out configuration. It’s a practical choice for maintaining compatible legacy electrical equipment when you need to match the original breaker specifications closely.

This Type NCL breaker has interrupting ratings of 65k AIC at 600VAC, 100k AIC at 480VAC, and 125k AIC at 240VAC. It measures 19.5 inches high, 11.75 inches wide, and 5.75 inches deep.

When replacing a breaker in existing equipment, the part number is only one piece of the puzzle. Amperage, number of poles, voltage, AIC rating, physical size, and cable configuration must all match the application. The NCL36900 provides clear specifications to use when checking compatibility.

Its thermal-magnetic design is intended to respond to overload and short-circuit conditions. The molded case construction is built to last when the breaker is correctly applied, installed, and maintained.

Key Features and Benefits

• 900A rating for applications that require a 900-amp breaker
• 3-pole design for compatible three-pole electrical systems
• Type NCL molded case construction
• Thermal-magnetic trip for overload and short-circuit protection
• 65 kA AIC at 600VAC
• 100 kA AIC at 480VAC
• 125 kA AIC at 240VAC
• Cable-in/cable-out configuration
• Clearly defined dimensions for checking physical fit in existing equipment

Technical Specifications

• Part Number: NCL36900
  
• Type: NCL
  
• Breaker Style: Molded Case Circuit Breaker
  
• Trip: Thermal-Magnetic
  
• Amperage: 900A
  
• Poles: 3
  
• 600VAC Rating: 65k AIC
  
• 480VAC Rating: 100k AIC
  
• 240VAC Rating: 125k AIC
  
• Configuration: Cable-in/Cable-out
  
• Dimensions:
  • Height: 19.5 in.
  • Width: 11.75 in.
  • Depth: 5.75 in.

Material Compliance and Certifications

• Certification and material-compliance information was not included in the available specifications for the NCL36900. If your installation requires a specific UL, CSA, RoHS, or other certification or compliance designation, check the breaker label and applicable manufacturer documentation rather than assuming compliance from the model number.

Where It Works Best

• The NCL36900 circuit breaker makes the most sense in compatible legacy electrical equipment that calls for a 900A, 3-pole Type NCL thermal-magnetic breaker with cable-in/cable-out connections.
• For replacement applications, carefully check the existing equipment. The breaker needs to match the required amperage, number of poles, voltage, interrupting rating, connection arrangement, and physical dimensions. A qualified electrical professional should also verify the available fault current and other system requirements before installation.