HFA3040L | Circuit Breaker | 40A | 3-Pole | 600V

The HFA3040L Circuit Breaker is a rugged, three‑pole protective device built for demanding industrial environments. With a 40A rating and a 600V maximum, it’s designed to safeguard three‑phase feeders and motors across demanding manufacturing floors, processing lines, and heavy equipment setups. When you’re performing maintenance, retrofits, or replacements, this device offers a precise spec match that keeps your system reliable and compliant.

Key benefits that matter in real-world use

• Accurate 40A protection for three‑phase circuits, helping prevent equipment damage from overcurrents while allowing normal startup and operation.
• 3‑pole design ensures simultaneous disconnection across all phases, minimizing arc risks and maintaining control of the electrical system during faults.
• 600V rating suitable for standard industrial distribution and motor circuits, providing compatibility with a wide range of equipment and switchgear.
• Part number fidelity the HFA3040L is the most reliable reference for compatibility. Always confirm fit and ratings against the exact panel or enclosure specification before ordering.
• Maintenance-friendly with retrofit potential ideal for replacing failed units or upgrading older panels that require matching 3‑pole, 40A, 600V protection without layout changes.

Ideal use scenarios

• Upgrading or swapping three‑phase feeders in light to medium industrial installations, such as conveyors, compressors, or motor drives.
• Retrofit projects where preserving the existing electrical footprint and rating is crucial for downtime minimization.
• Replacement in service panels and switchgear that rely on a 40A, 3‑pole, 600V protective device to maintain system stability.

How to verify compatibility

Before purchasing, ensure the HFA3040L matches your panel’s requirements. The best reference for compatibility is the part number itself. Cross‑check the following:

• Amperage rating: 40A
• Pole configuration: 3‑Pole
• Voltage rating: up to 600V
• Mounting and enclosure fit corresponding to your existing hardware

Practical tips for installation and upkeep

• Power down the system and follow lockout/tagout procedures before replacing any breaker.
• Confirm the new device’s ratings align with your panel’s short‑circuit current capability and the connected load.
• Store replacement breakers in a clean, dry environment to prevent corrosion and ensure reliable operation when installed.

What you get

A single HFA3040L Circuit Breaker, ready for integration into suitable 3‑phase, 600V systems where a 40A protection level is required. For best results, pair this unit with panels and breakers that reference the same part number family to maintain consistent protection and accessibility.