MH36450 - 450 Amp Circuit Breaker

MH36450 - 450 Amp Circuit Breaker

Delivering dependable overload and short-circuit protection, the MH36450 circuit breaker from Schneider Electric’s PowerPacT M line is built to keep your electrical systems safe and running smoothly. Designed for demanding commercial and industrial environments, this 600 VAC breaker handles high fault currents with confidence while offering precision control through its smart trip unit.

Key Features and Benefits

• High Fault-Clearing Capability: With a 25 kA interrupting rating at 600 VAC, this breaker is engineered to safely interrupt high fault currents and protect downstream equipment.
• Smart Electronic Trip Unit (ET 1.0): Offers accurate and consistent protective response, helping you avoid nuisance trips while maintaining safety margins.
• Manual Push-to-Trip Function: Integrated push-to-trip button lets maintenance personnel test or trip the breaker manually for diagnostics or safety procedures.
• Busbar Compatibility & Ease of Installation: Designed for unit-mount (busbar) installations, this breaker simplifies wiring and deployment in distribution systems.
• Continuous Operation Assurance: Rated for 80% continuous current, the breaker is suitable for sustained electrical loads in demanding settings.

Technical Specifications

• Rated Current: 450 A
• Number of Poles: 3
• Voltage Rating: 600 VAC
• Interrupting Capacity:
  • 25 kA @ 600 VAC
  • 65 kA @ 480 VAC
  • 65 kA @ 240 VAC
• Trip Unit Type: Electronic, ET 1.0
• Continuous Load Rating: 80%
• Mounting: Unit-mount (busbar)
• Dimensions (H × W × D): 12.86″ × 8.27″ × 8.05″
• Net Weight: 29 lb (13.15 kg)

Material Compliance and Certifications

• Certifications: This circuit breaker conforms to recognized safety and performance standards across multiple regions. It is certified under UL, CSA, NOM, and IEC 60947-2, and also meets IEC 60947-1 standards with pollution degree 3.
• Markings: The unit is CE-marked and provides an IP40 degree of protection, making it suitable for controlled indoor environments with moderate contaminant levels.

Where It Works Best

• Ideal for industrial panels, distribution boards, motor control centers, or commercial electrical systems, the MH36450 shines in environments where both reliability and safety matter. Use it wherever high fault levels or heavy loads are present—such as manufacturing plants, data centers, large HVAC systems, or utility switching gear. Its compliance with international standards also makes it suitable for installations across North America, Latin America, and abroad, assuming compatibility with local codes and infrastructure.