Overview
The Square D QO250GFI is a 50 A, 120/240 VAC, two-pole Qwik-Gard ground-fault circuit interrupter with plug-in mounting. It combines Class A 6 mA personnel ground-fault protection, common-trip thermal-magnetic overcurrent protection and a 10 kA interrupting rating.
Key Features
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Protection: Class A GFCI sensing responds to low-level ground faults while the thermal-magnetic mechanism protects both poles against overloads and short circuits.
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Installation: The breaker plugs into compatible QO equipment and uses box-lug load terminals plus a factory pigtail neutral for the ground-fault sensing circuit.
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Compatibility: Use only in Square D QO load centers and enclosures specifically listed for QO250GFI; verify panel and system compatibility before installation.
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Performance: Rated 50 A, 2 poles, 120/240 VAC and 10 kAIC with common-trip operation.
Specifications
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Model: Square D QO250GFI
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Electrical rating: 50 A, 2 poles, 1 phase, 120/240 VAC
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Interrupting rating: 10 kAIC
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Mounting and connection: QO plug-in with box lugs and pigtail neutral
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Conductor range: Copper 14–6 AWG; aluminum 12–4 AWG
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Temperature and certifications: 40°C ambient rating; UL Listed; CSA certified; RoHS compliant
Common Applications
- Spas, outdoor equipment and other 50 A two-pole loads when Class A GFCI protection is required by the equipment instructions and code.
- Residential or light-commercial QO load centers requiring a two-pole personnel-protection GFCI.
- Exact-model replacement where QO250GFI is specified.
