Square D QO3020 Miniature Circuit Breaker – Tandem – 20A/30A – 1 Pole (Dual Circuit) – 120/240V – Plug-In – QO Series

The Square D QO3020 is a QO-series tandem miniature circuit breaker designed for use in QO load centers. It provides two independent branch circuits (20A and 30A) within a single breaker space, helping maximize panel capacity. It includes thermal magnetic protection for overload and short-circuit conditions and features a VisiTrip indicator for quick identification of a tripped circuit. This breaker is commonly used in residential and light commercial panelboards where space optimization is required.

Electrical Ratings

• Current Rating: 20A / 30A (tandem dual circuits)
• Voltage Rating: 120/240 VAC
• Frequency: 50/60 Hz
• Phase: 1 Phase
• Poles: 1 Pole (dual internal circuits)
• Interrupting Rating: 10 kA @ 120/240 VAC

Protection and Function

• Trip Technology: Thermal Magnetic
• Trip Function: Overload and Short-Circuit Protection
• Protection Type: Branch circuit protection (dual circuits)
• Application: Lighting, appliance, and general residential circuits

Configuration and Function

• Series: QO Series (Square D / Schneider Electric)
• Model: QO3020
• Catalog Number: QO3020
• Frame Type: QO Miniature Frame
• Mounting Style: Plug-On
• Terminal Type: Pressure Plate
• Compatibility: QO Load Centers, NQOD Panelboards, OEM interiors / Speed-D switchboards

Mechanical and Physical Characteristics

• Tandem breaker design (two circuits in one space)
• Compact molded housing for panel space optimization
• Plug-on installation for QO compatibility
• Integrated VisiTrip fault indicator
• Pressure plate terminals for secure wiring connection
• Wire range: 14–8 AWG (Aluminum/Copper), (2) 14–10 AWG (Copper)
• Space-saving design for high-density panels

Standards and Certifications

• UL Listed
• CSA Certified
• Manufactured by Schneider Electric / Square D
• Designed for North American residential and light commercial systems

Features

• Dual-circuit tandem configuration (20A + 30A)
• Thermal magnetic protection for reliable fault response
• VisiTrip indicator for quick troubleshooting
• Plug-on mounting for easy installation
• Maximizes panel space efficiency
• Compatible with QO system load centers
• Reliable performance for residential branch circuits
• Clear visual trip indication for maintenance efficiency

Returns are easy

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

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