Square D HDA261504AABC 261504A 2-Pole 600 V Circuit Breaker

Square D HDA261504AABC 2-Pole 600 V Circuit Breaker is a reliable electrical protection device designed for two-pole circuits in high-voltage environments. Also commonly referenced as 261504A, this Square D part delivers essential fault protection for industrial power distribution up to 600 volts.

What it does

As a protective device, it detects abnormal current levels and interrupts the circuit to prevent wiring damage and equipment failure. The 2-pole design ensures both conductors are opened simultaneously, which improves safety and simplifies emergency shutoffs in 600 V systems.

Key specifications

• Part Number: HDA261504AABC
• Alternate designation: 261504A
• Poles: 2
• Voltage rating: 600 V

Ideal use scenarios

• Protection for 2-pole circuits in industrial control panels and distribution panels operating up to 600 V
• Replacement part for existing Square D installations that use the HDA series or compatible form factors
• Motor feeder protection where a reliable, quick-disconnect device is required to minimize downtime

Why choose Square D for this application

Square D circuit breakers are known for robust construction and consistent trip performance. The HDA261504AABC variant is built to maintain electrical safety margins in demanding environments, helping you maintain uptime and protect expensive equipment. By sticking to a well-established 2-pole, 600 V configuration, you get predictable interrupting behavior and easier diagnostics during maintenance.

Practical tips and installation notes

• Ensure the replacement part matches the existing panel’s specifications (2-pole, 600 V) and is compatible with your Square D system.
• Store spare breakers in a clean, dry environment to prevent corrosion and ensure reliable operation when installed.
• During installation, follow standard safety procedures and disconnect power before handling components.