Square D HJA261251 125A 2P 600V Circuit Breaker | AmpState

The Square D HJA261251 125A 2P 600V circuit breaker is built for everyday electrical work, delivering dependable circuit protection in panelboards, load centers, and electrical distribution networks. Designed with retrofit projects and maintenance planning in mind, this part keeps your electrical system consistent and easy to service when the exact part number matters most.

Why this breaker stands out

• Reliably protects essential circuits with a 125-amp rating, suitable for high-demand circuits in commercial and industrial environments.
• Two-pole design for 240V-style circuits and shared-neutral configurations commonly found in panelboards and distribution systems.
• 600V maximum rating supports a wide range of electrical distributions, helping you meet safety and code requirements across installations.
• Part number stability ideal for retrofit work and maintenance planning where keeping the exact component reference simplifies ordering and documentation.
• Backed by Square D quality offering trusted performance and compatibility with Square D panels and accessories.

Key specifications at a glance

• Manufacturer: Square D
• Part Number: HJA261251
• Product Type: Circuit Breaker
• Amperage: 125 A
• Poles: 2
• Voltage: 600V

Ideal use cases

• Retrofitting aging panelboards or load centers where the exact HJA261251 part is required to maintain compatibility with existing wiring and labeling.
• Maintenance planning for facilities with mission-critical circuits that demand reliable protection and predictable replacements.
• Electrical distribution upgrades in commercial spaces, warehouses, and light-industrial environments where 125 A, 2P protection is appropriate.

Compatibility and practical tips

Before installation, verify that the breaker is compatible with your panelboard model and labeling. If you’re unsure about fit, AmpState can help confirm compatibility and ensure you’re ordering the correct part for your specific setup.

Availability is current through AmpState. If you need help matching a part number or confirming compatibility, message us and we’ll assist you in confirming fit for your system.