Square D | A1L340 | Circuit Breaker | 3-Pole

Meet the Square D A1L340 3-Pole Circuit Breaker — a precise, ready-to-install solution for three-phase electrical systems that demand reliability and exact spec matching. This unit is ideal for maintenance, retrofit, and replacement projects where the exact component matters.

Key specifications at a glance

• Pole configuration: 3-Pole design for 3-phase circuits, enabling coordinated protection across all phases.
• Part reference: Identified by part number A1L340, ensuring you’re selecting the correct unit for your panel and application.
• Application focus: Suited for maintenance, retrofit, and replacement needs where matching specs are required.

Notes: Confirm fit and ratings before ordering. Part number is the best reference for compatibility.

Why this Square D breaker stands out

• Explicit alignment with Square D panels and distribution systems that specify A1L340, reducing the guesswork during upgrades.
• Streamlined replacement process: carry the exact part number you need to avoid mismatches and delays in your maintenance window.
• Reliability associated with the Square D lineage, making it a dependable option for critical systems in commercial and industrial settings.

Who benefits most

• Electrical technicians performing panel maintenance or upgrades that require exact spec breakers.
• Facilities managers coordinating retrofits or replacements in multi-panel installations.
• Contractors working on three-phase systems where a 3-pole breaker is specified.

Ready to proceed with a precise, compatible replacement? The Square D A1L340 is designed to slot into compatible Square D panels, delivering reliable protection where it matters most.