Square D FH36030 - 30 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

The Square D FH36030 is a 30 amp, 600-volt three-pole plug-in molded case circuit breaker designed to deliver dependable branch-circuit protection in panelboards and loadcenters. Built for fast, reliable installation and easy replacement, this device is a practical choice for both new builds and upgrades where space, protection, and compliance matter.

Why this breaker stands out

• Fast plug-in connection enables quick installation and straightforward replacement, minimizing panel downtime during service calls or upgrades.
• Thermal-magnetic trip unit delivers stable, repeatable protection across a broad range of fault currents, reducing nuisance trips while safeguarding wiring and equipment.
• 3-pole design for 3-phase systems perfectly suited for commercial and light industrial applications that rely on balanced, multi-phase power distribution.
• 600V maximum rating supports higher voltage circuits common in today’s commercial and industrial environments, while maintaining precise overcurrent protection.
• OEM-compatible is designed to fit matching Square D load centers and panelboards, ensuring reliable performance and proper electrical coordination.
• Versatile application ideal for residential, commercial, and light industrial protection needs where fast protection and easy maintenance are priorities.

Ideal use cases and scenarios

• Upgrading older panels to meet current safety standards in office buildings or retail spaces.
• Installing as part of a new three-phase distribution setup in small to mid-size commercial facilities.
• Protecting branch circuits feeding motors, lighting, and receptacle banks in light industrial environments.
• Replacing a failed or aging plug-in breaker with a compatible, OEM-matched unit to maintain panelboard integrity.

Compatibility, installation, and safety considerations

Designed to work with matching OEM load centers and panelboards, the FH36030 ensures alignment with original engineering specifications and performance expectations. When installing, follow standard electrical codes and the panel’s manufacturer guidelines to ensure secure connections and proper thermal management. The plug-in mounting style simplifies service procedures and minimizes the tools and time required for replacement in compatible Square D systems.

Technical specifications

• Manufacturer: Square D
• Part number: FH36030
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 30 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Whether you’re stocking a service truck, outfitting a new panel, or maintaining an industrial control room, the Square D FH36030 delivers precise protection, quick serviceability, and dependable performance. Available through AmpState for projects that demand reliable, OEM-matched circuit protection.