Square D | HJA261004 | Circuit Breaker | 100A | 2-Pole | 600V | Plug-In

The Square D HJA261004 circuit breaker is a purpose-built protection device designed for 600-volt systems. With a 100-amp rating and a 2-pole configuration, this plug-in breaker delivers reliable overcurrent protection for feeders and branch circuits in commercial and industrial panels that support plug-in replacements.

Key specifications

• Amperage: 100 A
• Poles: 2-Pole
• Voltage rating: 600 V
• Mounting style: Plug-In

Why this specific model matters

Identified by part number HJA261004, this circuit breaker is designed for precise compatibility in installations that require an exact match. It excels in maintenance, retrofit, and replacement projects where matching specs is critical to ongoing panel protection and safety. The plug-in design enables faster swaps and straightforward field servicing in compatible Square D panels.

Ideal use cases

• Replacing a failed or aging 100A, 2-pole breaker in 600V electrical panels that accept plug-in units.
• Retrofit projects upgrading or updating protection for upgraded feeders and circuits.
• Maintenance scenarios where quick, reliable plug-in replacements minimize downtime.
• Spare parts stock for facilities that rely on Square D compatibility and exact part references.

Compatibility and installation notes

Before ordering, confirm fit and ratings. The part number HJA261004 is the best reference for compatibility with your panel. For installation, power should be shut off and local electrical codes followed; if in doubt, consult a licensed electrician to ensure proper handling and safe, compliant replacement.