Square D | MHL368001212 | Circuit Breaker | 800A | 3-Pole | 600V | 65kA

Designed for demanding electrical systems, the Square D MHL368001212 circuit breaker delivers dependable protection in industrial environments. With an 800A rating, a 3-pole configuration, a 600V maximum, and a robust 65kA interrupting capacity, this unit is built to safely interrupt high-energy faults and shield downstream equipment from damage.

Key specifications

• Amperage: 800A
• Poles: 3-Pole
• Voltage: 600V
• Interrupting Capacity: 65kA
• Part Number: MHL368001212

Note: Confirm fit and ratings before ordering. The part number is the best reference for compatibility.

Why this matters for your system

In high-energy power distributions, a breaker with a high interrupting capacity like 65kA minimizes damage during a fault by quickly interrupting the fault current. The 3-Pole design ensures balanced protection across all three phases, crucial for maintaining system stability in industrial and commercial applications. The 600V rating aligns with typical medium-voltage distribution equipment, making this unit suitable for main breakers and service disconnects in robust electrical installations. An 800A rating supports heavy feeders and demanding load profiles without compromising protection.

Ideal applications

• Main breaker in commercial or industrial distribution panels handling substantial load
• Retrofit projects where exact specs must be matched to existing systems
• Equipment upgrades or replacements in facilities with three-phase power and higher fault-current levels
• Replacement part in legacy Square D installations requiring the MHL368001212 reference

What makes it unique

This breaker isn’t a generic solution. It’s a specification-focused component designed for retrofit and replacement tasks where precise compatibility matters. By matching the exact part number—MHL368001212—you ensure seamless fit, consistent trip characteristics, and reliable coordination with downstream protection schemes. Backed by Square D’s established reliability, it provides durable performance in environments where other breakers might fall short on current capability or fault handling.

Practical guidance for purchase and use

• Verify that your panel or distribution equipment requires an 800A, 3-Pole, 600V unit with a 65kA interrupting rating before ordering.
• Use the part number MHL368001212 as your primary reference to ensure exact compatibility with existing assemblies.
• For retrofit projects, map the breaker’s trip curves and coordination with upstream protection to maintain proper protection philosophy and minimize nuisance tripping.
• Consult your facility’s electrical drawings or panel label to confirm the device type and mounting compatibility.

Choose the Square D MHL368001212 circuit breaker when your application demands serious protection for substantial electrical loads, precise compatibility, and dependable performance in challenging industrial or commercial environments.