Square D | FHP360401021 | Circuit Breaker | 40A | 3-Pole | 600V

Meet the Square D FHP360401021 Circuit Breaker — a precise, dependable solution for protecting your 3‑phase electrical system. With a 40A rating, 3‑pole configuration, and a 600V limit, this breaker is purpose-built for demanding industrial and commercial environments where reliable overcurrent protection is non‑negotiable. Designed for maintenance, retrofit, and replacement projects, it ensures your existing panel or equipment receives the exact specifications needed to keep operations safe and efficient.

• Exact specs you need: 40 amps, 3‑pole configuration, 600V rating. This precise combination is essential for correct fit and reliable protection in three‑phase circuits.
• Three‑phase stability: The 3‑pole design interrupts all three conductors together, maintaining phase balance and safeguarding motors, drives, and other equipment on 3‑phase systems.
• Trusted brand: Square D is a recognized name in circuit protection, delivering consistent performance and long‑lasting durability in demanding environments.
• Versatile use cases: Ideal for panel retrofits, maintenance replacements, and system upgrades where the FHP360401021 matches the existing specifications.
• Compatibility note: Confirm fit and ratings before ordering. The part number FHP360401021 is the best reference for compatibility with your panel and circuit needs.

Why this matters in real-world scenarios: a 40A, 3‑pole, 600V breaker ensures that once a fault occurs, the electrical system is rapidly isolated across all three phases, reducing damage to wiring, devices, and operators. Its robust design is suited for the cycles and loads typical of commercial equipment, HVAC gear, and industrial machinery that rely on stable three‑phase protection.

Practical guidance for procurement and installation:

• Verify that your system is indeed three‑phase and that a 600V, 40A, 3‑pole configuration is required by checking your panel label or existing breakers.
• Keep the part number FHP360401021 handy to ensure you’re purchasing the exact compatibility you need.
• Follow standard electrical safety practices during installation and consult a qualified electrician if there’s any uncertainty about fit or wiring requirements.