Square D HDA260251AABCSH 260251A 2-Pole 600 V Circuit Breaker

Square D HDA260251AABCSH is a robust 2-pole circuit breaker designed for reliable overcurrent protection in demanding electrical systems. While the model is specifically identified as HDA260251AABCSH (also associated with the 260251A designation), the core value remains clear: dependable disconnection of both hot lines in a 600-volt environment to safeguard personnel, wiring, and equipment.

Why this 2-pole 600 V breaker stands out:

• Two-pole protection—simultaneously interrupts both conductors, ensuring balanced protection for multi-wire circuits and reducing the risk of phase-to-phase faults.
• 600 V system compatibility—engineered to handle higher-voltage distribution scenarios common in commercial, industrial, and equipment applications.
• Clear part identification—part number HDA260251AABCSH with a closely related 260251A reference makes sourcing, replacement, and cross-compatibility straightforward for service teams.
• Industrial-grade reliability—built to endure routine switching and fault conditions in panelboards, motor control centers, and other distribution gear, delivering consistent protection when it matters most.

Use cases and ideal applications

• Protecting feeders and branch circuits in commercial electrical panels where a 2-pole, 600 V solution is required.
• Integrating into industrial control panels and equipment enclosures that demand reliable interruption of both hot lines.
• Serving as a dependable replacement part for legacy Square D installations where the HDA series is specified.

Practical considerations

• Match this breaker to your existing Square D panel or enclosure by verifying the compatible series and mounting format for the HDA family.
• When performing maintenance or replacements, ensure the line and load connections are correctly torqued to manufacturer specifications and that the device is de-energized before service.
• Label the breaker clearly in your electrical documentation to reflect its 2-pole, 600 V rating and part number for future serviceability.

Specifications at a glance

• Poles: 2
• Voltage rating: 600 V
• Part numbers: HDA260251AABCSH (and 260251A reference)
• Product type: 2-pole circuit breaker