Square D HDA260404AABCSH 260404A 2-Pole 600 V Circuit Breaker Potential Transformer

Protect and monitor high-energy circuits with the Square D HDA260404AABCSH, a rugged 2-pole circuit breaker engineered for demanding electrical environments. This unit combines traditional fault protection with potential transformer capabilities to support precise metering and relay signaling, all in a compact, panel-ready package.

Why this breaker stands out

• Two-pole design for reliable protection of 2- or 3-phase branches in commercial and industrial panels.
• 600 V voltage rating ensures safe operation across a wide range of distribution systems.
• Part number clarity: HDA260404AABCSH simplifies ordering, stocking, and cross-referencing within Square D/Schneider Electric ecosystems.
• Integrated potential transformer features enable accurate voltage monitoring and protective relay inputs without adding separate equipment.
• Robust construction tailored for factory floors, data centers, and heavy-load environments.

Who benefits most

Electrical engineers, facilities managers, and maintenance teams working with medium- to high-voltage distribution panels will appreciate the streamlined protection and monitoring workflow this unit offers. Ideal for main feeders, motor control centers, and critical loads where both interruption protection and circuit-level metering are valuable.

Practical use cases

• Protect motor circuits in a manufacturing line where precise current interruption and real-time monitoring are essential.
• Upgrade panel protection with a single unit that supports both disconnection and potential transformer-based metering.
• Retrofit or expand existing Square D installations in data centers or commercial facilities needing robust protection with metering capabilities.

Technical snapshot

• Part Number: HDA260404AABCSH
• Poles: 2
• Voltage rating: 600 V
• Product type: Circuit Breaker with Potential Transformer integration (Square D)
• Application: Industrial/commercial electrical distribution systems