MAL366001386 - 600 Amp Circuit Breaker

MAL366001386 - 600 Amp Circuit Breaker

Looking for serious protection for your power system? The MAL366001386 600 Amp circuit breaker is built to handle high-demand electrical setups without flinching. Designed for industrial and commercial environments, it delivers dependable performance with a high interrupting capacity—up to 42kA at 240V—to keep your equipment safe from overloads and short circuits. Whether you're managing a factory floor, a big-box retail space, or a commercial electrical panel, this breaker does the job reliably and efficiently. It’s fitted with a thermal-magnetic trip unit that knows when to act—kicking in when needed to stop faults in their tracks, but staying calm during normal operation. Built with a tough molded case and rated for 60Hz and 40°C, it stands up to real-world conditions without a hitch.

Key Features and Benefits

• Smart protection: Thermal-magnetic trip keeps your system safe without unnecessary shutdowns.
• High fault capacity: Handles up to 42kA at 240V, giving you peace of mind in high-load settings.
• Built to last: Molded case resists heat, impact, and tough environments.
• Plug-and-go: Includes line and load lugs for quick, clean installation.
• Versatile performance: Runs smooth in a variety of commercial and industrial settings.

Technical Specifications

• Amperage: 600 Amps
• Number of Poles: 3
• Interrupt Ratings:
  • 42kA @ 240V
  • 30kA @ 480V
  • 22kA @ 600V
• Frequency: 60 Hz
• Frame: MAL
• Temp Rating: 40°C
• Size:
  • Width: 9.00 inches
  • Length: 14.00 inches
  • Depth: 4.53 inches

Material Compliance and Certifications

• Made to meet strict safety and performance standards, this breaker’s molded housing is built from high-quality insulating materials that hold up against heat and stress.
• The internal components are precision-calibrated for accurate trip response, so you get consistent protection when it counts most.

Where It Works Best

• Manufacturing facilities — protect motors, drives, and heavy-duty machines.
• Commercial electrical systems — ideal for breaker panels in offices, shopping centers, and public buildings.
• High-risk environments — performs well where fault current levels are high and reliability is non-negotiable.
• Infrastructure and utilities — perfect for large-scale systems that need durable, high-capacity circuit protection.