Square D | FI360801021 | Circuit Breaker | 80A | 3-Pole | 600V

Designed for reliability in power distribution, the Square D FI360801021 circuit breaker delivers precise, dependable protection for your 80A, three-pole, 600V circuits. Built to meet the demanding requirements of maintenance, retrofit, and replacement projects, this unit ensures that you can restore or upgrade your panel with the exact specifications you need.

Key specifications:

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

Why this FI360801021 matters

• Direct-fit compatibility for Square D equipment and assemblies requiring an 80A, 3-pole, 600V breaker.
• Best reference for compatibility is the part number FI360801021 — use this when confirming fit with panels, bus styles, and upstream devices.
• Ideal for maintenance windows, retrofit of legacy systems, or replacement after routine service checks to minimize downtime.

How to verify a proper fit

• Check the panel's labeling and service section to confirm the catalog number and mounting style.
• Ensure the application is the correct voltage (600 V) and current rating (80 A) and that a three-pole configuration matches your distribution network.
• Use FI360801021 as the primary reference when ordering to maximize compatibility and reduce mismatch risks.

Use cases and ideal environments

This breaker is well-suited for commercial and industrial panels that require a robust, three-pole protection device capable of handling up to 600 volts. It supports retrofit projects in aging electrical infrastructure, replacements after component wear, and maintenance programs where downtime must be minimized with a known-good part number.