Square D HJA260302AA 260302A 2-Pole 600 V Circuit Breaker

The Square D HJA260302AA 2-Pole 600 V Circuit Breaker is your dependable protective device for demanding 600-volt electrical environments. Designed to interrupt fault currents quickly and safely, this unit protects your wiring and connected equipment from overloads while keeping downtime to a minimum. With its two-pole configuration, both hot legs trip together, ensuring reliable disconnection for 240V/dual-leg circuits and higher-energy loads.

Key specifications

• Part number: HJA260302AA (also associated with 260302A)
• Poles: 2-pole design for simultaneous disconnection of both conductors
• Voltage rating: Up to 600 V AC
• Brand lineage: Square D, a trusted name in electrical protection

Why this model matters

Choosing the HJA260302AA means opting for a rugged, purpose-built breaker that aligns with Square D panel architectures. Its 2-pole construction is ideal for protecting equipment and circuits that require two hot legs, providing coordinated shutdown that minimizes arcing risk and equipment damage. This unit is especially suitable for commercial and light industrial applications where 600 V systems are common and reliable interruption is essential.

Ideal use scenarios

• Feeder protection for 240 V circuits in commercial buildings and light industrial facilities
• Motor control circuits where dual-hot leg protection is required
• Electrical panel upgrades or replacements in Square D-based installations
• Backup protection for critical equipment in environments with higher voltage requirements

Installation and compatibility tips

• Verify that your enclosure and bus configuration are compatible with Square D HJA family breakers
• Consult your panel’s documentation to confirm the correct part variant (HJA260302AA) for your 2-pole, 600 V protection needs
• Use as a direct replacement where the 260302A/260302 series is specified to maintain consistent protective performance

For ongoing reliability in 600 V systems, the Square D HJA260302AA 2-Pole 600 V Circuit Breaker delivers clear protection, straightforward compatibility with existing Square D installations, and a targeted solution for dual-hot leg circuits. If you’re maintaining or upgrading panels that require this exact specification, this part meets the practical requirements of modern electrical protection with a trusted brand behind it.