MA36400 - 400 Amp Circuit Breaker

MA36400 - 400 Amp Circuit Breaker

The Schneider Electric MA36400 — 400 Amp Molded Case Circuit Breaker is built for demanding electrical environments. Rated for 600 VAC and 400 amps, this breaker offers dependable protection against overloads and short circuits in industrial, commercial, and utility systems. Whether it's for a factory panel, distribution switchgear, or critical infrastructure, the MA36400 gives you peace of mind that your circuit stays safe under stress.

Key Features and Benefits

• High Fault Withstanding Capability: It handles a fault current up to 18 kA at 600 V, reducing the risk of damage during sudden surges.
• Plug-In I-Line Design: Its I-Line configuration allows easy installation or removal without rewiring, speeding up maintenance and reducing downtime.
• ET 1.0 Trip Technology: Built-in electronic trip functionality provides precise response to overcurrent conditions.
• 80 % Continuous Rating: Allows safe continuous operation below 80 % of full load, giving you flexibility in real-world systems.
• Durable Housing: Encased in a molded case that resists mechanical stress and protects internal components even in tough settings.

Technical Specifications

• Voltage Rating: 600 VAC
  
• Current Rating: 400 A
  
• Poles: 3
  
• Interrupting Capacity: 18 kA at 600 V
  
• Mounting Type: I-Line plug-in
  
• Trip Technology: ET 1.0
  
• Continuous Current Rating: 80 %
  

Material Compliance and Certifications

• Green Premium Label: Indicates adherence to environmental standards and provides transparency into material impact.
• California Proposition 65 Notice: This device contains DINP and DIDP, substances known to the State of California to be linked with cancer or reproductive harm, so proper handling and protective measures are recommended.

Where It Works Best

• Commercial Buildings: Ideal for protecting power distribution panels in offices, malls, and complexes.
• Industrial Plants: Well-suited for machinery circuits, HVAC systems, or control rooms with high fault potential.
• Utilities & Infrastructure: Works in substations, switchgear arrays, or backup power facilities where reliability is critical.
• Green or Sustainable Projects: Because of its environmental compliance, the MA36400 is a strong choice when aiming for eco-friendly or "future-ready" systems.