Square D HDA260301AABCSK 260301A 2-Pole 600 V Circuit Breaker

The Square D HDA260301AABCSK is a rugged 2-pole circuit breaker crafted to protect electrical systems with reliability and precision. Identified by the part number HDA260301AABCSK (also associated with 260301A), this breaker is built to handle demanding duty in commercial and industrial environments while delivering consistent protection for your circuits up to 600 V.

Overview

Designed for 2-pole circuits, this Square D breaker interrupts both hot conductors simultaneously, enhancing safety and reducing the risk of arc faults. With a 600 V voltage rating, it is suited for a wide range of panelboards and power distribution setups that require robust, dependable overcurrent protection.

Key specifications

• Part Number: HDA260301AABCSK
• Alternate/model reference: 260301A
• Poles: 2
• Voltage rating: 600 V
• Product family: Square D HDA series

Why this model stands out

• Accurate, dual-pole protection: The 2-pole design ensures both lines are disconnected together, delivering safer cutoff during overloads or faults.
• Voltage headroom: A 600 V rating makes it suitable for higher-energy commercial and industrial circuits where reliable protection matters.
• Trusted brand heritage: Square D is renowned for dependable electrical protection devices, supporting consistent performance across installations.
• Clear part identity for replacements: The explicit model and part numbers simplify sourcing and compatibility checks when replacing or upgrading panels.

Ideal applications

• Protection for 2-pole circuits in commercial electrical panels.
• Replacement or upgrade parts for existing Square D installations that require 600 V protection.
• Industrial feeders and equipment circuits where dual-line disconnection enhances safety.
• Panels and distribution setups that prioritize straightforward, reliable overcurrent protection.

Installation and compatibility

Use in configurations that accept 2-pole, 600 V circuit breakers from the Square D lineup. When installing, verify that the panel labeling confirms compatibility with this model (HDA260301AABCSK) to ensure proper fit and performance. As with all electrical work, power should be safely shut off, and follow manufacturer guidelines for torque and termination when securing conductors.

Practical tips

• Double-check the panel’s documentation to confirm the breaker’s footprint and mounting pattern align with your enclosure.
• Keep a record of the part number (HDA260301AABCSK) and its 600 V rating for future maintenance or replacements.
• Inspect for signs of wear or overheating during routine inspections and replace if any corrosion, deformation, or tripped indicators are observed.

What you gain

With the Square D HDA260301AABCSK 2-Pole 600 V circuit breaker, you gain reliable, dual-line protection that helps safeguard equipment, reduce downtime from electrical faults, and simplify maintenance with a clearly identifiable, readily sourced replacement part. It’s a practical, purpose-built choice for any system that demands solid protection at higher voltage levels.