MHL36450 - 450 Amp Circuit Breaker

MHL36450 - 450 Amp Circuit Breaker

Engineered for demanding industrial and commercial power systems, the MHL36450 molded case circuit breaker from Schneider delivers dependable protection where it matters most. Rated at 600 V AC and 450 A, this 3-pole breaker is built to manage high electrical loads while safeguarding circuits against overloads and short circuits. Its high interrupting capability ensures that even under fault conditions, your system remains secure and damage is minimized. With its performance profile and trusted PowerPacT lineage, the MHL36450 is a go-to solution for professionals who demand both safety and longevity.

Key Features and Benefits

• High load capacity: Rated for 600 V and 450 A, it tackles heavy-duty applications without compromise.
• Strong fault protection: Its interrupting rating (up to 25 kA at 600 V, and higher at lower voltages) handles significant fault currents, giving peace of mind under stress.
• User-friendly installation: Comes with line and load lugs that simplify wiring and cut down setup time in the field.
• Consistent performance: As part of the PowerPacT lineup, this breaker is built for consistent operation even in challenging environments.
• Eco-aware design: Carries a “Green Premium” label, affirming compliance with environmental standards and transparent impact disclosure.

Technical Specifications

• Voltage Rating: 600 V AC
  
• Current Rating: 450 A
  
• Number of Poles: 3
  
• Interrupting Capacity:
  • 25 kA @ 600 V (higher at 480 V / 240 V)
• Trip Unit Type: ET 1.0 (fixed long-time electronic / magnetic)
  
• Continuous Rating: 80% of nominal rating
  
• Wire Range: Compatible with 3/0 AWG up to 500 kcmil (copper or aluminum)
  
• Certifications & Standards: UL, CSA, IEC (meets international norms)
  

Material Compliance and Certifications

• Green Premium label: Reflects full disclosure of environmental impact, adherence to eco-regulations, and use of low-impact materials.
• RoHS / REACH compliance: Limits on hazardous substances ensure safer materials.
• Safety & disclosure: Complies with California Proposition 65 labeling requirements, notifying users of potential exposure to chemicals such as DINP and DIDP.
• Global certifications: Carries UL and CSA listings along with compliance to IEC regulatory norms.

Where It Works Best

• The MHL36450 molded case breaker excels in medium- to large-scale installations where circuit reliability is critical. Use cases include:
  • Industrial plants and factories with high-power equipment
  • Commercial buildings with complex electrical distribution
  • Infrastructure or utility settings requiring solid overcurrent protection
  • Service panels or switchgear setups where both durability and environmental compliance matter