MHL36600 - 600 Amp Circuit Breaker

MHL36600 - 600 Amp Circuit Breaker

Engineered for demanding electrical environments, the MHL36600 molded case circuit breaker delivers dependable protection for high-power systems. Designed by a premium manufacturer in the Schneider/Square D family, this breaker is suited for industrial and commercial installations where safety, durability, and fault current handling are critical. With a 600-ampere rating at 600 V and a thermal-magnetic trip profile, it defends your system against overloads and short circuits without complicating your setup.

Key Features and Benefits

• High fault-current handling: Rated for 25 kA interrupting capacity at 600 VAC (and higher capacities at lower voltages), the MHL36600 can withstand severe fault conditions without compromising system integrity.
• Solid construction: Built with a molded (plastic) case body and designed for front or rear terminal mounting, it resists mechanical stress, vibration, and harsh workplace conditions.
• Thermal-magnetic trip unit: Combines long-time (overload) and instantaneous (short-circuit) protection in one unit, helping ensure fast response to dangerous electrical events.
• Line & load lugs: Equipped with input and output lugs for secure bolted connections, making installation and retrofits easier and more reliable.
• 80% continuous loading design: The unit is rated to carry 80 % of its full 600A rating continuously without nuisance tripping, giving you design margin for real-world loads.

Technical Specifications

• Voltage Rating: 600 VAC (also applicable to lower voltage systems)
• Current Rating: 600 A continuous (with 80 % continuous limit)
• Poles: 3 (three-phase)
• Interrupting Capacity:
  • 25 kA @ 600 VAC
  • 65 kA @ 480 VAC / 240 VAC
• Trip Type: Thermal-magnetic, non-interchangeable
• Operating Temperature: –20 °C to +50 °C (approximate)
• Mounting: Fixed — front or rear terminal mounting
• Wire Size Range: #3/0 to 500 kcmil (copper or aluminum)

Material Compliance and Certifications

• Industry Standards: This breaker meets major industry safety and performance standards. It is UL 489 listed and complies with IEC 60947-2 protocols, ensuring dependable behavior under electrical stress.
• Additional Compliance: Additionally, it meets NEMA / CSA standards where applicable. Given its construction and materials, this unit is eligible for end-of-life recycling and aligns with circular economy practices.

Where It Works Best

• The MHL36600 is well suited for:
  • Heavy industrial installations (factories, processing plants)
  • Large commercial buildings (shopping malls, office complexes)
  • Mission-critical facilities (data centers, telecommunications)
  • Infrastructure projects (utilities, power distribution hubs)
  • Retrofit or expansion of existing switchgear systems