Square D HJL36050M72 - 50 A, 600 V, 3-Pole Circuit Breaker | AmpState

The Square D HJL36050M72 is a 50A, 600V, 3-pole molded-case circuit breaker engineered to protect your electrical system with precision and reliability. Designed to fit seamlessly in panelboards and load centers, this breaker preserves valuable panel space while delivering dependable overcurrent and short-circuit protection for demanding commercial, residential, and light industrial environments.

Why this breaker stands out

• Compact molded-case design maximizes panel space without compromising protection, making it ideal for modern installations with tighter layouts.
• Thermal-magnetic trip unit provides stable, repeatable protection across temperature variations, reducing nuisance trips and ensuring consistent performance.
• 3-pole configuration supports three-phase circuits or multi-pole protection in shared-feed panel systems, simplifying integration in larger or commercial setups.
• 50A, 600V rating offers robust protection for branch circuits and feeders in both residential and commercial applications, while supporting higher voltage systems where needed.
• OEM-compatible designed to work with matching Square D load centers and panelboards, enabling straightforward substitution and reliable electrical coordination.

Ideal use cases

• Upgrading panelboards in small commercial spaces or light industrial facilities that require reliable 3-pole protection.
• Replacing aging breakers in Square D systems to maintain consistent protection performance and panel coordination.
• Feeding essential equipment in data rooms, workshops, and service areas where compact design and dependable trip behavior matter.
• Protecting multi-wire branch circuits in residential or mixed-use buildings where space-efficient, coordinated protection is needed.

Technical snapshot

• Manufacturer: Square D
• Part Number: HJL36050M72
• Type: Thermal-magnetic molded-case circuit breaker
• Amperage Rating: 50 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Practical guidance for installation and coordination

For best results, pair this 50A, 600V, 3-pole breaker with compatible Square D OEM load centers and panelboards to ensure optimal trip coordination and reliability. The thermal-magnetic design handles both overloads and short circuits, delivering predictable protection while maintaining panel integrity. Before installation, verify the breaker’s compatibility with your specific panel model and confirm that the total load on the circuit does not exceed the panel’s design limits. Regularly inspect connections and follow all local electrical codes to maintain safe and compliant operation.