Square D FHL360501021 - 50 A, 600 V, 3-Pole Circuit Breaker | AmpState

Square D FHL360501021 is a 50A, 600V, 3-pole molded case circuit breaker designed to guard panelboards and load centers from overcurrent and short circuits. Sold by AmpState, this unit is built for dependable protection where reliability matters most—from everyday residential panels to light commercial and industrial applications.

Key reasons to choose this breaker:

• Compact molded case design optimizes panel space, allowing you to fit more protection in tighter electrical enclosures without sacrificing performance.
• Thermal-magnetic trip unit delivers stable, repeatable protection across varying loads and temperatures, reducing nuisance trips while quickly interrupting faults.
• 3-pole configuration ideal for three-phase circuits, helping to safeguard equipment and distribution systems in commercial and light industrial setups.
• 50A rating at 600V provides robust branch-circuit protection for demanding loads without compromising circuit reliability.
• OEM-compatible designed to work seamlessly with matching Square D OEM load centers and panelboards, ensuring dependable replacement and ongoing system integrity.
• Versatile applications suitable for residential, commercial, and light industrial environments, making it a practical, long-term protection solution.

Specifications at a glance

• Manufacturer: Square D
• Part Number: FHL360501021
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 50A
• Voltage Rating: 600V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for your panel projects

Whether you’re upgrading a residential service panel, outfitting a small commercial distribution panel, or reinforcing a light industrial panel with reliable three-phase protection, the Square D FHL360501021 delivers precise protection with minimal space impact. Its compact form factor and OEM compatibility make it a straightforward, field-friendly replacement that keeps electrical systems running smoothly.

Practical tips for use: confirm that your panelboard accepts a matching OEM load center and verify the trip characteristics align with your protection coordination strategy. When replacing an existing breaker, match the Part Number (FHL360501021) and ensure correct number of poles and voltage rating to maintain system safety and compliance.