Square D HDA260251AABCSK 260251A 2-Pole 600 V Circuit Breaker

Meet the Square D HDA260251AABCSK 2-Pole 600 V Circuit Breaker—a purpose-built protection device designed to safeguard high-energy electrical systems in commercial and industrial panels. This part, identified as Model 260251A, blends trusted Square D engineering with a two-pole configuration to deliver dependable protection for multi-wire circuits up to 600 volts.

Why this two-pole breaker matters

The two-pole design ensures both hot legs disconnect simultaneously, providing safer shutdown of critical circuits and reducing the risk of arcing or backfeed. With a 600 V rating, it supports higher-voltage applications commonly found in commercial buildings, manufacturing lines, and industrial feeders, helping you protect equipment and maintain safe operation under demanding conditions. Built on the Square D lineage, this breaker offers proven reliability and compatibility with compatible panel boards and distribution systems.

Ideal use cases

Use this breaker for panelboard upgrades, new installations, and retrofits where robust, dual-pole protection is required. It’s well-suited for protecting feeders and AC equipment in warehouses, light manufacturing environments, and other settings where dependable interruption of both conductors is essential for safety and downtime reduction. The compact form factor and standard mounting make it a practical choice for space-constrained panels where performance matters as much as installation ease.

Key specifications

Part Number: HDA260251AABCSK

Model: 260251A

Pole configuration: 2-pole

Voltage rating: 600 V

How this breaker supports your system

By providing reliable, dual‑pole protection for up to 600 V systems, this Square D circuit breaker helps you maintain safe, continuous operation of critical equipment. Its authentic Square D construction ensures compatibility with standard panels and distribution setups, giving you confidence during installation and ongoing maintenance. In environments where downtime is costly, this breaker offers a dependable solution that aligns with professional electrical practices and compliance expectations.