Square D QO350EPD Ground Fault Circuit Breaker – 50A – 3 Pole – 240V – Plug-In – 30mA GFCI – QO Series

The Square D QO350EPD is a QO-series three-pole ground fault protection circuit breaker designed for use in load centers and panelboards requiring enhanced personnel protection. It provides thermal magnetic overcurrent protection combined with 30mA ground fault sensing (Class B), helping prevent electrical shock hazards and equipment damage. This plug-in breaker is suitable for residential, commercial, and light industrial 240VAC distribution systems.

Electrical Ratings

• Current Rating: 50 A
• Voltage Rating: 240 VAC
• Frequency: 50/60 Hz
• Phase: 3 Phase
• Poles: 3 Pole
• Interrupting Rating: 10 kA @ 240 VAC
• Ground Fault Sensitivity: 30 mA

Protection and Function

• Trip Technology: Thermal Magnetic + Ground Fault (GFCI / EPD Class B)
• Trip Function: Overload, Short-Circuit, and Ground Fault Protection
• Protection Type: Personnel protection and equipment protection
• Application: Industrial, commercial, and distribution systems requiring ground fault protection

Configuration and Function

• Series: QO Series (Square D / Schneider Electric)
• Model: QO350EPD
• Catalog Number: QO350EPD
• Frame Type: QO Miniature Frame
• Mounting Style: Plug-On
• Terminal Type: Box Lug
• Compatibility: QO Load Centers, NQ Panelboards, HOMELINE compatible systems

Mechanical and Physical Characteristics

• Compact molded breaker housing
• Plug-on installation for QO system compatibility
• Ground fault protection module integrated into breaker
• Pressure-balanced thermal magnetic mechanism
• Box lug terminals for secure wiring connection
• Wire range: 12–4 AWG (Aluminum), 14–6 AWG (Copper)
• Ambient rating: 104°F
• Tightening torque: 40.71 in-lb

Standards and Certifications

• UL Listed
• CSA Certified
• RoHS compliant
• Manufactured by Schneider Electric / Square D
• Designed for North American electrical safety standards

Returns are easy

You may return items within 30 days of delivery for a refund.

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