QO320 - Square D 20 Amp 3 Pole 120/240VAC QO Series Plug-In Circuit Breaker, 10kAIC, Thermal Magnetic Trip, UL/CSA

QO320

QO320 is a Square D 3-pole, 20 Amp, 120/240VAC plug-in circuit breaker designed for reliable electrical protection in commercial and industrial applications.

This QO Series breaker features a thermal magnetic trip unit for both overload and short-circuit protection, with a 10kA interrupting rating. It is compatible with QO load centers, NQ and NQOD panelboards, and offers a compact, plug-in design for easy installation. The QO320 is mercury-free, UL and CSA certified, and meets RoHS, REACH, and HACR standards for safety and environmental compliance.

Key Specifications
• Amperage: 20A
• Voltage: 120/240VAC, 48VDC
• Poles: 3
• Mounting Type: Plug-In
• Interrupt Rating: 10kAIC at 120/240VAC
• Series/Frame: QO
• Trip Unit: Thermal Magnetic (long time and instantaneous)
• Certifications: UL Listed, CSA Certified, RoHS, REACH, HACR
• Wire Size: 14 to 8 AWG (copper or aluminum)
• Operating Temperature: 40°C
• Actuator Type: Toggle
• Dimensions: 2.9" L x 2.2" W x 3" H

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Specifications

• Part Number: QO320
• Manufacturer : Schneider Electric
• Brand : Square D
• Category : Circuit Breaker
• Item Subcategory : Molded Case
• Family : QO SEries
• Type : QO
• Voltage : 240
• Amperage : 20
• Phase : 3
• Poles : 3
• AIC rating : 10kA@240V
• Connection : Plug-In
• Functions : Long Time and Instantaneous Trip
• Terminal Connection : Pressure plate
• Frame Size : 100A/QO
• Temp Rating : -13–158 °F (-25–70 °C)
• MCM Size : Min. Wire Size 14 AWG Max. Wire Size 8 AWG
• Breaker Type : Standard
• Protection : Thermal Magnetic

Product Data

• UPC : 785901400684
• GTIN : 00785901400684
• Country of Origin : Mexico
• Dimensions : 3.0 in (76 mm) x 2.2 in (57 mm) x 2.9 in (74 mm) (Height x Width x Depth)
• Weight : 0.85
• Panel Type : QO Load Centers and NQ Panelboards
• Standards : CSA Certified, HACR, UL Listed
• Certification : HACR, UL Listed
• Wire Size : AWG 14 to AWG 8, Copper or Aluminum