MHL36300 - 300 Amp Circuit Breaker

MHL36300 - 300 Amp Circuit Breaker

Upgrade your power distribution setup with the MHL36300 300 A Molded-Case Circuit Breaker from the trusted PowerPacT M family. This three-pole breaker is built for demanding industrial and commercial systems, offering dependable protection and long life under harsh conditions.

Key Features and Benefits

• High Load Handling: Rated for 600 V AC and 300 A continuous current, this breaker is ready for heavy loads without breaking a sweat.
• Strong Fault Tolerance: With a breaking capacity of 25 kA (at 600 V), it can interrupt high fault currents, helping to safeguard wiring, equipment, and personnel.
• Easy Installation: Line and load lug connections simplify wiring, speeding installation and reducing labor time.
• Electronic Trip Unit (ET 1.0): Provides precise protection using a thermal-magnetic mechanism with electronic control, improving accuracy over purely mechanical designs.
• Series Consistency: As part of the PowerPacT M line, you’ll benefit from shared dimensions, mounting holes, and accessory compatibility across models.

Technical Specifications

• Voltage Rating: 600 V AC
• Current Rating: 300 A
• Number of Poles: 3
• Breaking Capacity: 25 kA @ 600 V
• Trip Unit: ET 1.0 (thermal + magnetic)
• Continuous Duty: 80% of rating
• Connection Type: Line & load lugs
• Mounting: Unit-mount style

Material Compliance and Certifications

• Green Premium Designation: Ensures adherence to strict environmental standards and transparent ecological impact reporting.
• Regulatory Compliance: Meets California Proposition 65 requirements, alerting users to trace substances known to the State of California for reproductive harm or carcinogenic risk.
• Global Certifications: Certified to UL, CSA, and IEC safety and performance standards through the PowerPacT M product line.

Where It Works Best

• The MHL36300 is ideal in settings where strong overcurrent protection is non-negotiable: manufacturing plants, data center power systems, large commercial buildings, switchgear assemblies, and critical infrastructure projects. Wherever heavy loads, fluctuating demand, or high stakes reliability must combine, this breaker delivers. Its consistent form factor also makes it a smart choice for modular or scalable systems, simplifying maintenance and future upgrades.