Square D FH360201021 - 20 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Square D FH360201021 — 20 A, 600 V, 3-Pole Plug-In Molded-Case Circuit Breaker from AmpState When you’re upgrading or maintaining electrical panels, you need protection you can trust. The FH360201021 from Square D delivers dependable branch circuit and short-circuit protection in a compact, easy-to-install package. Designed for panelboards and load centers, this plug-in molded-case breaker keeps critical circuits guarded without slowing you down.

• Fast plug-in connection: Quick installation and replacement reduce downtime during panel maintenance or upgrades, so you can get back to work faster.
• Thermal-magnetic trip unit: Combines thermal overload protection with magnetic short-circuit protection for stable, repeatable performance across a wide range of operating conditions.
• 3-pole configuration: Suitable for multi-wire and three-phase systems, delivering coordinated protection across all poles in the circuit.
• 20 A, 600 V rating: Ideal for typical branch circuits in residential, commercial, and light industrial environments where higher-voltage distribution is present.
• Molded-case, plug-in style: Built for durability and reliable engagement in matching OEM load centers and panelboards, with consistent trip characteristics over time.
• OEM compatibility: Specifically designed to align with corresponding Square D load centers and panelboards for a seamless, code-compliant fit.

The FH360201021 isn’t just a spec sheet entry—it's a practical solution for real-world protection. Use it to secure lighting and receptacle circuits in light commercial spaces, protect critical equipment in small industrial setups, or upgrade legacy panels where rapid breaker replacement minimizes service interruptions. Its plug-in design makes routine checks and replacements straightforward, helping technicians maintain uptime without extensive panel disassembly.

Who benefits most: electrical contractors, facilities managers, and skilled technicians who demand reliable, repeatable protection for 3-pole, 20 A circuits in panelboards and load centers. It’s also a solid option for residential systems that require robust short-circuit protection without complex installation.

Technical snapshot:

• Part Number: FH360201021
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 20 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection