MA36450 - 450 Amp Circuit Breaker

MA36450 - 450 Amp Circuit Breaker

The MA36450 is a high-capacity molded-case circuit breaker engineered to shield critical electrical systems from overloads and short-circuit faults. Rated for 450 amps at 600 VAC, this three-pole breaker blends reliability, advanced protection, and compatibility into a compact, service-friendly package. Whether you’re specifying protection for heavy machinery, distribution panels, or infrastructure projects, this unit gives professionals peace of mind with consistent performance under demanding conditions.

Key Features and Benefits

• High fault-handling capability: With an interrupting rating of 18 kA at 600 V (comparable to similar industry models) it helps contain fault energy and reduce downstream damage.
• Integrated ET 1.0 trip technology: Offers improved electronic trip performance for more precise response to overloads and ground faults.
• 80% continuous current rating: Allows you to run heavier loads closer to capacity without nuisance trips.
• I-Line / unit-mount style: Enables fast plug-in installation or removal in suitable panels, simplifying maintenance or retrofit work.
• Durable construction: Built from dependable molded-case materials that resist shock, vibration, and ambient stress.
• Trip indicator: Offers a visible flag to show when the unit has tripped, streamlining diagnostics.

Technical Specifications

• Voltage Rating: 600 VAC
  
• Current Rating: 450 A
  
• Poles: 3
  
• Interrupting Capacity: 18 kA @ 600 V
  
• Continuous Rating: 80 %
  
• Trip Technology: ET 1.0
  
• Mounting / Style: I-Line / unit-mount (plug-in)
  
• Connection Type: Lugs on line and load sides
  
• Standards & Approvals: UL, CSA, IEC (as applicable)
  
• Operating Temperature: –25 °C to +70 °C (typical rating)
  
• Environmental Rating: IP40 (internal)
  

Material Compliance and Certifications

• Green Premium Label: This breaker carries Schneider Electric’s Green Premium label, affirming a commitment to lower environmental impact and higher transparency in materials.
• Regulatory Compliance: Adheres to RoHS/REACH-style restrictions where applicable, and bears standard third-party certifications (UL, CSA, IEC), ensuring safe use in regulated environments.
• California Proposition 65: Contains trace amounts of DINP and DIDP; appropriate handling and awareness are advised.
  

Where It Works Best

• This breaker fits best in industrial distribution systems, commercial switchgear, data centers, and large scale HVAC or motor control panels. It’s ideal where heavy loads must be protected with reliability and where maintenance or swapping flexibility matters. If your setup uses I-Line or plug-in formats, the MA36450 slides in smoothly—perfect for retrofit jobs or new control assemblies demanding robust overcurrent protection.