Square D HDA260504 - 50 A, 600 V, 2-Pole Plug-In Circuit Breaker | AmpState

Square D HDA260504 is a 50A, 600V, 2-pole plug-in molded case circuit breaker designed for dependable branch circuit protection in panelboards and load centers. Its fast plug-in connection means quicker installations and easier replacements, reducing downtime during service and maintenance.

Built for versatility, this thermal-magnetic breaker delivers stable, repeatable protection against both overloads and short circuits. The dual-pole design safeguards two energized conductors together, making it ideal for circuits with shared neutrals or where simultaneous disconnection is required. When you need a reliable, hands-on solution for electrical distribution, this unit fits seamlessly into compatible OEM panels, delivering consistent performance year after year.

Key advantages you’ll notice

• Fast plug-in connection for streamlined installs and quick swaps during panel servicing.
• Thermal-magnetic trip unit provides precise overload protection plus rapid short-circuit interruption, helping protect conductors and devices from damage.
• 2-pole, 50A, 600V rating supports essential branch circuits in residential, commercial, and light industrial environments.
• Molded case construction offers durability, compact form factor, and reliable isolation for safe operation inside panels.
• Compatibility with OEM load centers and panelboards ensures a proper fit, consistent trip characteristics, and fewer compatibility concerns.
• Plug-in mounting style simplifies replacement and service work, reducing labor and downtime.

Ideal use cases and applications

• Upgrading or replacing a failed 2-pole breaker in residential service panels or commercial load centers.
• Installing new branch circuits that require robust overcurrent and short-circuit protection up to 600V.
• Maintenance projects in light industrial settings where quick plug-in replacements minimize production downtime.
• Panelboard modernization tasks that demand a reliable, OEM-compatible component for long-term reliability.

Technical specifications at a glance

• Manufacturer: Square D
• Part number: HDA260504
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 50 A
• Voltage rating: 600 V
• Number of poles: 2
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Whether you’re stocking an electrical contractor’s kit or upgrading a facility’s distribution panel, the Square D HDA260504 delivers confident protection with easy maintenance. Trust in a proven solution for reliable, long-term performance in residential, commercial, and light industrial projects.