Square D | FHL360801021 | Circuit Breaker | 80A | 3-Pole | 600V

The Square D FHL360801021 circuit breaker is built for demanding electrical environments where reliable three‑phase protection matters. With an 80A rating, three poles, and a 600V maximum, it’s designed for maintenance, retrofit, and replacement projects that require precise matching specs.

Notes: Confirm fit and ratings before ordering. Part number is the best reference for compatibility.

Key specifications

• Amperage: 80 A
• Poles: 3-Pole
• Voltage: 600 V

Why choose this Square D breaker

• Three-pole design ensures simultaneous disconnection of all three hot legs for safer shutdown of three-phase systems.
• Optimized for maintenance and retrofit workflows where exact spec matching is essential, reducing downtime and compatibility risks.
• Part number FHL360801021 serves as the most reliable reference for panel and enclosure compatibility.
• Durable construction tailored to industrial and commercial electrical distribution environments.

Practical use cases

Ideal for upgrading aging three-phase panels, replacing a failed circuit protection device in service panels, or retrofitting power feeds in commercial facilities where 600V class protection is required.

Compatibility and installation tips

Before ordering, verify the exact fit by cross-referencing the part number FHL360801021 with the panel manufacturer’s specifications. Ensure the circuit breaker rating (80A), pole count (3), and voltage rating (600V) align with your system. Installation should be performed by a qualified electrician in accordance with local electrical codes and safety practices.

What you gain

Reliable protection for three-phase circuits, streamlined procurement through a single part number, and confidence that the replacement aligns with existing Square D infrastructure and electrical distribution strategies.