MHL364001386 - 400 Amp Circuit Breaker

MHL364001386 - 400 Amp Circuit Breaker

When you need dependable protection for heavy power systems, the MHL364001386 400 Amp molded case circuit breaker delivers. Built for commercial or light industrial use, this three-pole breaker guards your electrical setup against overload and short-circuit faults, helping you maintain safety and uptime. Designed for ease of installation and long life, it’s a serious choice for engineers, facility managers, and electricians who demand performance without fuss.

Key Features and Benefits

• Thermal-magnetic protection: Combines overload detection (thermal) and instantaneous reaction (magnetic) in one unit, keeping circuits safe under varying loads.
• Solid molded-case construction: The sturdy housing resists impact, vibration, and environmental stresses, ensuring consistent operation in challenging settings.
• Line & load lugs included: Preconfigured lugs help reduce wiring time during installation—no extra adapters needed.
• Compact footprint for its capacity: At just 9.00″ W × 14.00″ L × 4.53″ D, it fits in many enclosures with minimal spatial waste.
• Thermally stable under high ambient temps: Rated to perform reliably in environments up to 40 °C, so derating needs are minimized.

Technical Specifications

• Poles: 3
  
• Continuous Current Rating: 400 A
  
• Frame Type: MHL
  
• Frequency: 60 Hz
  
• Operating Ambient Temperature: Up to 40 °C
  
• Dimensions (W × L × D):
  • Width: 9.00″
  • Length: 14.00″
  • Depth: 4.53″
• Weight: 45 lb
  

Material Compliance and Certifications

• UL Listed: Meets rigorous U.S. safety and performance standards for molded case circuit breakers.
• RoHS / Environmental Standards: Manufactured with components compliant to global material safety and disposal rules.
• Quality Assurance: Produced under certified processes to ensure consistency and reliability in every unit.

Where It Works Best

• This breaker shines in medium to large power distribution rooms, industrial plants, data center panels, and commercial building main switchgear. It’s particularly suited for applications with heavy motors, HVAC systems, or scenarios where fault current exposure is high. Use it to safeguard critical machinery, sub-distribution systems, or power branches feeding large loads.