MAL36400 - 400 Amp Circuit Breaker

MAL36400 - 400 Amp Circuit Breaker

When you're replacing a breaker in existing equipment, the catalog number alone isn't enough—the electrical ratings, physical dimensions, and connection details must all match. The MAL36400 is a 400-amp, 3-pole MAL thermal magnetic molded case circuit breaker rated for 60Hz operation and 40°C. For existing or legacy equipment requiring the same MAL type, 400A rating, three-pole configuration, dimensions, and electrical characteristics, the MAL36400 can be considered a form, fit, and functional replacement candidate. Its solid molded-case construction is built to last when the breaker is selected, installed, and maintained correctly.

Key Features and Benefits

• 400 Amp Rating: Provides the specified 400A current rating for compatible electrical equipment.
• Three Poles: The MAL36400 has a 3-pole configuration, which is essential when matching an existing breaker.
• MAL Type: Helps identify the breaker when cross-checking the catalog number and type against existing equipment.
• Thermal-Magnetic Circuit Breaker: Uses the specified thermal-magnetic configuration in a molded-case design.
• Line and Load Lugs Included: Both connection sides include lugs, simplifying the process of checking the required breaker configuration.
• 60Hz Rating: Specified for 60Hz electrical applications.
• 40°C Rated: The supplied product specifications identify this breaker as 40°C rated.
• Built to Last: Solid molded-case construction suited to its intended electrical application when correctly selected, installed, and maintained.

Technical Specifications

• Part Number: MAL36400
  
• Product Type: Molded Case Circuit Breaker
  
• Type: MAL
  
• Amperes: 400A
  
• Poles: 3
  
• Operation: Thermal Magnetic
  
• Frequency: 60Hz
  
• Temperature Rating: 40°C
  
• A.I.C. @ 600VAC: 22k
  
• A.I.C. @ 480VAC: 30k
  
• A.I.C. @ 240VAC: 42k
  
• A.I.C. Rating & Volts: 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
  
• Lugs: Line and load lugs included
  
• Height: 14.0 in.
  
• Width: 9.0 in.
  
• Depth: 4.53 in.
  
• Dimensions: 9.00"W x 14.00"L x 4.53"D
  
• Approx. Shipping Weight: 39.00 lbs.
  

Material Compliance and Certifications

No specific agency certifications or material-compliance information was included in the supplied specifications for the MAL36400. For that reason, do not assume UL, IEC, RoHS, REACH, or other certification and compliance status.

Where It Works Best

The MAL36400 400 amp circuit breaker is best suited for replacement situations involving compatible existing or legacy electrical equipment that calls for a 400A, 3-pole MAL thermal magnetic molded case circuit breaker with matching specifications.