Square D QO120EPD QO Series Equipment Protection Ground Fault Circuit Breaker – 20A – 1 Pole – 120VAC – Plug-In – Thermal Magnetic – 30mA Ground Fault

The Square D QO120EPD is a QO-series equipment protection circuit breaker designed to provide standard overcurrent protection combined with 30mA ground fault protection. It is intended for use in QO loadcenters, NQ panelboards, and OEM distribution systems where enhanced equipment safety is required. The device integrates thermal magnetic protection with ground fault sensing for reliable protection against overloads, short circuits, and leakage faults.

Electrical Ratings

• Current Rating: 20 A
• Voltage Rating: 120 VAC
• Phase: 1 Phase
• Poles: 1 Pole
• System Compatibility: 120 VAC, 50/60 Hz
• Interrupting Rating: 10 kA @ 120 VAC
• Ground Fault Sensitivity: 30 mA

Protection and Function

• Trip Technology: Thermal Magnetic + Ground Fault (EPD)
• Trip Functions:
  • Long-Time (Overload Protection)
  • Instantaneous (Short-Circuit Protection)
  • Ground Fault Protection (30 mA sensitivity)
• Protection Type: Equipment protection / ground fault safety device
• Application: Overload, short-circuit, and ground fault protection for branch circuits

Configuration and Function

• Series: QO-EPD Series
• Model: QO120EPD
• Frame Type: QO Frame
• Connection Type: Plug-In
• Terminal Configuration: Pressure plate terminals
• Mounting Style: Plug-in (QO load center compatible)
• Sub-category: Equipment protection / ground fault breaker (1-pole)

Mechanical and Physical Characteristics

• Compact molded case design
• Plug-in installation for QO/NQ compatible systems
• Integrated 30mA ground fault sensing module
• Thermal magnetic protection combined with electronic ground fault function
• Designed for OEM, panelboard, and distribution applications
• Durable housing for long service life
• Consistent performance in industrial and commercial environments

Standards and Certifications

• UL Listed
• CSA Certified
• RoHS compliant
• Manufactured by Schneider Electric / Square D
• Suitable for QO, NQ, and OEM panel systems
• UNSPSC: 39121603

Returns are easy

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

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