MHL36300 - 300 Amp Circuit Breaker

MHL36300 - 300 Amp Circuit Breaker

The MHL36300 is a 300-amp, 3-pole thermal-magnetic molded-case circuit breaker with both line and load lugs included. For your replacement work in existing or legacy electrical equipment, that's useful information—but a proper match goes beyond amperage alone. Its solid molded-case construction is built to last when the breaker is correctly selected, installed, and maintained for its intended electrical application.

Key Features and Benefits

• 300 Amp, 3-Pole Configuration: Clearly defined electrical characteristics help narrow the replacement search when existing equipment requires a 300A, three-pole MHL breaker.
• Thermal-Magnetic Circuit Breaker: The MHL36300 is specifically identified as a thermal-magnetic molded-case circuit breaker.
• Line and Load Lugs Included: Both sides include lugs, an important detail when matching an existing breaker configuration.
• 60Hz Operation: The frequency is specified as 60Hz.
• 40°C Rating: The supplied product information identifies a 40°C temperature rating.

Technical Specifications

• Part Number: MHL36300
  
• Type: MHL
  
• Product Type: Thermal Magnetic Molded Case Circuit Breaker
  
• Amperes: 300A
  
• Poles: 3
  
• A.I.C. Rating & Volts: 25k @ 600VAC; 65k @ 480VAC; 65k @ 240VAC
  
• Frequency: 60Hz
  
• Temperature Rating: 40°C
  
• Lug Configuration: Line and Load Lugs Included
  
• Dimensions: 9.00"W x 14.00"L x 4.53"D
  
• Height: 14.00 in.
  
• Width: 9.0 in.
  
• Depth: 4.53 in.
  
• Approximate Shipping Weight: 45.00 lbs.
  

Material Compliance and Certifications

No specific UL, CSA, IEC, HACR, RoHS, REACH, or other certification or material-compliance information was supplied for the MHL36300. Do not assume these listings and compliance standards based on the product type or specifications of similar circuit breakers.

Where It Works Best

The MHL36300 300 amp circuit breaker is best suited for existing or legacy electrical equipment that specifically requires the electrical and physical characteristics of this MHL configuration. A suitable application should match the 300A rating, three-pole configuration, thermal-magnetic design, 60Hz frequency, 40°C rating, applicable A.I.C. rating, line-and-load lug configuration, and physical dimensions.

Pay particular attention to system voltage when checking interrupting capacity. The supplied ratings are 25k at 600VAC, 65k at 480VAC, and 65k at 240VAC. Physical fit matters too, so compare the stated 9.00"W x 14.00"L x 4.53"D dimensions with the existing equipment rather than relying on the MHL type or catalog number by itself.