Square D HDA261502AABCSH 261502A 2-Pole 600 V Circuit Breaker Potential Transformer

Square D HDA261502AABCSH is a rugged 2-pole, 600 V circuit breaker designed for demanding electrical distribution environments. With part number HDA261502AABCSH and model code 261502A, this unit provides reliable overcurrent protection while supporting voltage sensing for monitoring in systems that use a potential transformer.

Why this 2-pole, 600 V configuration matters

In high-voltage panels, a two-pole breaker protects two live conductors simultaneously, offering fast fault clearing and dependable isolation. The 600 V rating makes it suitable for industrial feeders, machine centers, and panelboards that run on medium-voltage or high-voltage distribution schemes. The integration-friendly form factor aligns with Square D panel ecosystems, simplifying labeling, compatibility, and serviceability.

Key specifications

• Brand: Square D
• Part number: HDA261502AABCSH
• Model designation: 261502A
• Poles: 2
• Voltage rating: 600 V
• Current rating: 261502 A

Practical use cases

Best suited for industrial power distribution where two-line protection is needed for high-voltage circuits. Ideal for feeders from switchgear to distribution panels, or as a protective disconnect in equipment rooms. When paired with monitoring equipment and a potential transformer network, it enables real-time voltage sensing and safe, centralized protection signaling across the facility.

How it stands out from generic breakers

This Square D unit leverages the brand’s engineering standards and panel compatibility, reducing installation guesswork and ensuring consistent trip characteristics across Square D ecosystems. The 2-pole design ensures coordinated shut-off of related lines, improving fault clearance and system safety over single-pole alternatives in 600 V applications.

Tips for best results

• Verify that the panel family and busbar arrangement match the HDA261502AABCSH part number before installation.
• Consult applicable electrical codes and use appropriate torque specs during mounting and termination.
• For systems employing a potential transformer, integrate the breaker with the PT sensing scheme to capture accurate voltage data for protective relays and meters.
• Keep a spare HDA261502AABCSH on hand for quick replacement in mission-critical panels to minimize downtime.