Square D FHL36025 - 25 A, 600 V, 3-Pole Circuit Breaker | AmpState

Square D FHL36025 — a 25A, 600V, 3-pole molded case circuit breaker designed for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Available from AmpState, this breaker is built to fit and function with Square D systems you already rely on.

Why this breaker stands out

• Compact molded-case design maximizes panel space and simplifies wiring in tight installations, helping you make the most of every inch in your electrical panel.
• Thermal-magnetic trip unit delivers stable overload protection with predictable trip characteristics (thermal for gradual overcurrent and magnetic for instantaneous fault interruption), reducing nuisance trips and improving safety.
• 3-pole configuration supports three-phase distribution where required, making it suitable for commercial and light industrial panels as well as compatible residential setups.
• 600V rated and 25A capacity provide reliable protection for branch circuits serving lighting, receptacles, and small equipment loads in mixed-use environments.
• OEM panelboard compatibility ensures seamless installation and coordinated protection when paired with matching Square D loadcenters and panelboards.

Technical specifications at a glance

• Manufacturer: Square D
• Part Number: FHL36025
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 25A
• Voltage Rating: 600V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases and practical scenarios

Use the Square D FHL36025 in panelboards and loadcenters where three-phase distribution is present or required, such as commercial offices, retail spaces, light manufacturing, and HVAC control panels. Its space-saving design is particularly beneficial in retrofit projects or upgrades where existing panels have limited room for new breakers. Because it’s designed to pair with matching OEM Square D equipment, you get predictable coordination, reliable performance, and easier ordering of replacement parts when needed.

What makes it a smart choice for your electrical protection

Beyond its basic specs, the FHL36025 is engineered for consistent performance across environments. The integrated thermal-magnetic mechanism provides precise trip thresholds that adapt to varying temperatures and load conditions, helping prevent unexpected outages while ensuring fast response to short circuits. This translates to safer distribution, reduced downtime, and simpler maintenance planning in both new installations and panel upgrades.

Tips for best results: verify panelboard compatibility with FHL-series breakers, follow Square D installation guidelines, and replace only with the same rating and pole configuration to maintain proper protection coordination. If you’re upgrading or constructing a Three-phase panel, the FHL36025 offers a reliable, space-efficient solution backed by Square D’s trusted protection technology.