Square D QO315GFI - 15 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState

The Square D QO315GFI is a 15 A, 240 V, 3-pole plug-in molded case circuit breaker engineered for dependable branch-circuit protection in panelboards and load centers. Built by Square D and designed to work with matching OEM panels, this GFI-capable breaker is a smart choice for residential, commercial, and light industrial installations where quick swaps and reliable protection matter.

• Fast plug-in connection for effortless installation and rapid replacement, minimizing downtime during panel maintenance or upgrades.
• Thermal-magnetic trip unit delivers stable, repeatable protection across fluctuating loads and fault conditions, reducing nuisance trips and protecting wiring and devices.
• Ground-fault protection (GFI) adds an important safety layer for circuits where leakage current could pose a risk, helping to safeguard people and equipment.
• 3-pole, 240 V configuration suited for multi-wire and 3-phase environments, enabling comprehensive protection for 240 V circuits.
• OEM panel compatibility ensures a precise fit with Square D panelboards and load centers, simplifying upgrades and replacements without site modifications.
• Versatile applications ideal for residential, commercial, and light industrial electrical systems that require reliable overcurrent and short-circuit protection.

Why this matters for you

Running a safer, more reliable electrical system starts with a breaker you can trust. The QO315GFI couples a proven protection scheme with fast installation, making it an excellent choice when you need to upgrade aging equipment or replace a failed unit in a peak-load panel. Its 15 A rating matches common branch circuits, while the 240 V, 3-pole design supports more complex wiring scenarios found in modern homes and small business setups.

Use cases and ideal setups

• Upgrading subpanels or main panels in homes where a plug-in replacement is preferred over bolt-on alternatives.
• Retrofits in commercial spaces that require quick, code-compliant protection for 240 V circuits.
• Light industrial installations with multi-wire branch circuits needing dependable thermal-magnetic protection and ground-fault safety.
• Repairs or routine maintenance where a matching OEM breaker is essential for panel compatibility and performance.

Technical specifications at a glance

• Manufacturer: Square D
• Part number: QO315GFI
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 15 A
• Voltage rating: 240 V
• Number of poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

With the QO315GFI from AmpState, you’re choosing a trusted, plug-in solution that aligns with Square D’s engineering of safety, reliability, and ease of service. It’s the practical, ready-to-install option for keeping critical circuits protected without downtime or compatibility concerns.