Square D | A1B335 | Circuit Breaker | 3-Pole | 240V | Bolt-On

Square D A1B335 3-Pole 240V Bolt-On Circuit Breaker is engineered for dependable protection in three-phase power systems. Ideal for maintenance, retrofit, and replacement projects where precise compatibility matters. With a bolt-on mounting design, this breaker delivers a solid, vibration-resistant connection inside compatible distribution panels, helping prevent nuisance trips and loose connections that can threaten system reliability.

• Poles: 3-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Best reference for compatibility: Part number A1B335
• Applications: maintenance, retrofit, and replacement where a precise match is required

Why choose this A1B335 breaker over generic substitutes? It aligns with Square D's design standards for three-phase protection, ensuring coordinated trip characteristics and consistent performance with existing equipment in your electrical distribution system. Always confirm fit and ratings before ordering to avoid mismatches in panel compatibility.

Ideal for facility managers, electricians, and technicians upgrading industrial or commercial panels that run 3-phase 240V service. Use cases include replacing aging bolt-on breakers in retrofit projects, adding a spare for planned maintenance, or stocking a matching replacement for a scheduled panel refresh.

Tip for installers: match the part number A1B335 to your panel's labeling and cross-check with your panel's listing to ensure the bolt-on style and 240V rating meet the system's requirements. This reduces downtime and ensures reliable circuit protection from day one.