MDL3300 - 300 Amp Circuit Breaker

MDL3300 - 300 Amp Circuit Breaker

Looking to safeguard your electrical systems with dependable power protection? The Eaton MDL3300 Series C molded case circuit breaker delivers just that. Engineered for both commercial and industrial environments, this three‑pole breaker handles high loads at 300 A, with voltage ratings up to 600 VAC and 250 VDC. Whether you're in manufacturing, commercial buildings, or other heavy‑duty settings, the MDL3300 stands ready to keep your circuits steady and secure.

Key Features and Benefits

• Exceptional fault‑clearing power: With interrupting capacities of 65 kAIC @ 240 VAC and 50 kAIC @ 480 VAC, it's built to help prevent severe system damage in high‑fault scenarios.
• Reliable fixed trips: Fixed thermal and magnetic trip mechanisms ensure consistent protection—meaning fewer surprises and longer system life.
• Flexible voltage capability: Compatible with 600 VAC and 250 VDC, this breaker adapts to diverse power setups, so you can confidently use it across projects.
• Durable performance: As part of Eaton's Series C, it's built to last under demanding conditions—less maintenance, more uptime.
• Safety you can trust: UL certification gives you—and your standards—the peace of mind that this unit meets stringent safety and quality benchmarks.

Technical Specifications

• Model: MDL3300
  
• Series: Eaton Series C
  
• Poles: 3
  
• Amperage Rating: 300 A
  
• Voltage Rating: 600 VAC / 250 VDC
  
• Interrupting Capacity:
  • 65 kAIC @ 240 VAC
  • 50 kAIC @ 480 VAC
• Frequency: 50/60 Hz
  
• Trip Type: Fixed thermal / fixed magnetic
  
• Dimensions: Refer to the Eaton datasheet
  
• Weight: Refer to the Eaton datasheet
  

Material Compliance and Certifications

• UL Listed: Meets strict safety standards for electrical components.
• Warranty: Eaton stands behind this unit with a one‑year warranty from installation or 18 months from shipping date (whichever comes first), giving you added confidence in purchase and performance.

Suitability

• The Eaton MDL3300 shines in environments where powerful protection matters most—like manufacturing plants, industrial complexes, and commercial facilities that experience heavy electrical demands. Thanks to its high fault‑clearing capacity and dependable trip mechanisms, it's a reliable choice for keeping systems safe and operating smoothly. Wherever you're powering critical equipment or need assurance your circuits stay protected under pressure, this breaker steps up.