Square D | FHL360401021 | Circuit Breaker | 3-Pole | Plug-In

Square D FHL360401021 is a 3-Pole Plug-In Circuit Breaker designed for reliable 3‑phase protection in maintenance, retrofit, and replacement projects. When your goal is seamless panel uptime and precise electrical protection, this breaker delivers a precise fit in compatible Square D panels.

• 3-Pole plug-in design enables fast, tool-friendly replacement in compatible Square D panels, helping minimize downtime during servicing or upgrades.
• Part number FHL360401021 serves as the most accurate compatibility reference. Use this identifier to verify fit with your panel catalog and labeling, ensuring correct trip characteristics and rating.
• Ideal for retrofit, maintenance, and replacement scenarios where dependable 3‑phase protection is required to keep systems running smoothly.
• Compact, space-conscious form preserves enclosure room while delivering robust circuit protection for busy electrical cabinets and panels.
• Clear fit and rating guidance—before purchasing, confirm your panel’s voltage, current rating, and trip curve to avoid mismatches and to safeguard electrical performance.

Who benefits: electricians, facilities managers, and maintenance teams working with Square D panels in industrial or commercial environments that rely on consistent 3‑phase protection. Use cases include routine replacement of a failed breaker, upgrading a panel to support new loads, or completing a retrofit where accurate 3‑pole protection is essential for system stability.

Why choose this model: it’s built to align with Square D standards, offering dependable protection for 3‑phase circuits while emphasizing compatibility through the exact part number. By prioritizing the right fit and ratings, you reduce the risk of downtime and ensure safe, reliable operation across your electrical infrastructure.