NA345-FLAT-TOP | Circuit Breaker | 45A | 3-Pole | 240V

Meet the NA345-FLAT-TOP, a rugged industrial circuit breaker designed for dependable protection in maintenance, retrofit, and replacement projects where exact specs matter. With a 45A rating and a 3-pole configuration for 240V systems, this unit fits cleanly into existing panels that require a precise, reliable protection device without compromising layout or performance. The flat-top profile in the model name signals a compact, straightforward replacement that aligns with standard panel interfaces while delivering solid circuit safeguarding.

Key specifications

• Amperage: 45 A
• Poles: 3-Pole
• Voltage: 240V
• Profile: Flat-top design (model NA345-FLAT-TOP)
• Reference for compatibility: Part number is the best reference when matching replacements

Why this matters

Using a breaker that matches your panel’s original specification is essential for consistent protection and reliable operation. The NA345-FLAT-TOP is purpose-built for aggressive maintenance cycles, retrofit upgrades, and replacements where exact amperage, pole count, and voltage matter most. By sticking to the specified 45A, 3-pole, 240V profile, you reduce the risk of nuisance trips, ensure proper trip characteristics, and maintain the intended protection scheme of your electrical system.

Ideal use cases

• Maintenance or service work on industrial control panels that require a precise 45A, 3-pole 240V breaker
• Retrofits to upgrade legacy panels to current protection standards without reconfiguring bus bars
• Replacement when the exact model NA345-FLAT-TOP is available and exact compatibility is essential

Compatibility and practical considerations

Before ordering, confirm fit and ratings to ensure a seamless swap. The part number NA345-FLAT-TOP serves as the strongest compatibility reference, so use it to verify whether your panel accepts this exact configuration. If your application relies on a 3-phase 240V circuit protected by a 45A device, this breaker is designed to integrate without requiring panel redesign or additional adapters.

For best results, match the replacement to your existing panel’s specifications and follow standard electrical safety practices during installation. This model is built to support dependable protection for industrial equipment and processes, helping minimize downtime and maintain steady operation in demanding environments.