Square D HDA260501AA 260501A 2-Pole 600 V Circuit Breaker

The Square D HDA260501AA 260501A 2-Pole 600 V Circuit Breaker is a precise, reliable solution for protecting electrical circuits at higher voltages. Designed as a genuine Square D part, this breaker captures the exact fit, form, and electrical characteristics needed to keep panels protected and running smoothly. With a 2-pole configuration and a 600 V maximum rating, it interrupts power reliably on both hot legs to guard upstream equipment and wiring from overloads and faults.

Key specifications at a glance

• Part number: HDA260501AA
• Poles: 2
• Voltage rating: 600 V
• Current rating: 260501 A
• Brand and lineage: Square D, a trusted name for electrical protection

Who should consider the Square D HDA260501AA? Electricians, facilities managers, and maintenance teams working with Square D panels in commercial or light industrial environments will find this 2-pole, 600 V breaker a natural fit for protecting two hot legs of a circuit. It’s particularly well-suited for applications where you need robust overcurrent protection on higher voltage circuits and a dependable, field-replaceable component that aligns with existing Square D enclosures.

What problems does it solve? This breaker provides reliable interruption of fault and overload currents on two conductors, helping to prevent damage to wiring, motors, control equipment, and other components fed from 120/240 V or higher setups. By ensuring a proper, fast-trip response within compatible Square D panels, it supports safer shutdowns and reduces unplanned downtime.

Why this part stands out

• Authentic compatibility: As a genuine Square D component, the HDA260501AA matches the form factor and mounting specifications of your existing panel, minimizing installation issues and ensuring dependable electrical performance.
• Clear identification: The exact part and current rating—260501 A—are provided to help you confirm the right replacement during maintenance or upgrades.
• High-voltage capability: With a 600 V rating, it’s designed for demanding circuits while keeping protection aligned with industry standards for higher voltage distributions.
• Strategic fit for two-hot-leg protection: The 2-pole design is ideal for circuits that require simultaneous disconnection of both live conductors, such as 240 V loads and certain control circuits.

Practical tips for installation and use

• Verify your panel model and enclosure compatibility with the HDA260501AA before replacement to ensure a seamless fit.
• Power down the panel and follow your organization’s lockout/tagout procedures prior to any replacement work.
• Handle the breaker with care to avoid bent terminals or damaged contacts, and torque connections according to the panel manufacturer’s guidelines.
• Keep the part in its original packaging until installation to prevent contamination or corrosion of contacts.

Whether you’re stocking spare breakers for preventative maintenance or performing a targeted upgrade in a Square D electrical system, the Square D HDA260501AA 2-Pole 600 V Circuit Breaker delivers the precise protection you expect from a trusted brand. This is the dedicated choice for those who demand exact fit, reliable performance, and clear part traceability in higher-voltage panel configurations.