Square D | FA36040MT | Circuit Breaker | 40A | 3-Pole | 600V | Plug-In

Square D FA36040MT Circuit Breaker is a 40-amp, 3-pole, 600-volt plug-in protection device designed for reliable overcurrent protection in demanding electrical panels. It’s purpose-built for maintenance, retrofit, and replacement projects where exact specifications matter, ensuring you’re upgrading with precision rather than guesswork.

The FA36040MT is the right choice when you need a genuine part with a precise spec match. The part number is the best reference for compatibility, helping you avoid fit issues and ensure safe, seamless integration with your existing Square D system.

Key specifications

• Amperage: 40 A
• Poles: 3-Pole (three‑phase protection)
• Voltage: 600 V
• Mounting: Plug-In

Why choose this Square D FA36040MT?

Three-phase circuits demand precise protection. This 3-pole, 40A plug‑in breaker delivers targeted protection for all three hot lines, helping prevent damage from overloads and short circuits while remaining straightforward to install or swap in when updating an panel. Using a genuine FA36040MT ensures proper fit, alignment with bus bars, and predictable trip behavior, giving you confidence when servicing critical electrical infrastructure.

Ideal uses & scenarios

• Maintenance work in existing panels that require a 40A, 3-pole, 600V plug-in breaker
• Retrofit projects where a precise spec match is essential for performance and safety
• Replacement of a failed or worn breaker in compatible Square D installations

Fit and ordering tip: Confirm fit and ratings before ordering. The FA36040MT part number is the best reference for compatibility, helping you select the exact component your system needs.

With this genuine Square D breaker, you gain reliable, industry-standard protection for three‑phase circuits, minimizing risk and downtime while keeping your electrical system aligned with manufacturer specifications.