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QOU320 - 20 Amp Circuit Breaker

  • 20 Amp
  • 10k @ 240VAC
  • 3 Pole
Circuit BreakersSKU: QOU320

Purchase Options: New In Box

QOU320 - 20 Amp Circuit Breaker Description

QOU320 - 20 Amp Circuit Breaker

The Square D QOU320 is a compact, high-performance 3-pole, 20-amp circuit breaker designed for diverse applications—from OEM setups to retrofit panels. With dependable over-current protection and flexible mounting options, it’s built for safety and adaptability in modern electrical systems.

Key Features and Benefits

  • Dependable over‑current protection: Offers both instantaneous and delayed trip functions for comprehensive circuit safety.
  • Clear trip detection: Features Square D’s VisiTrip® design, signaling when power has been interrupted.
  • Flexible mounting options: Includes unit‑mount (bolt‑on) or plug‑in variants—perfect for factory OEM use or retrofit panels.
  • Manual control feature: Enables manual circuit opening via internal magnetic strips for added safety.
  • Compact footprint: Ideal for installations where space is at a premium.

Technical Specifications

  • Current Rating: 20 A at 120/240 VAC, also rated at 48 V DC
  • Number of Poles: 3‑pole
  • Interrupting Capacity:
    • 10 kA at 120/240 VAC
    • 5 kA at 48 V DC
  • Mounting Type: Unit‑mount (bolt‑on) or plug‑in models available
  • Wire Compatibility: Accepts AWG 14 to AWG 2 copper or aluminum wires
  • Torque Requirement: 45 lbf·in (≈ 5.1 N·m)
  • Dimensions (H × W × D):
    • 4.05″ × 2.25″ × 2.95″ (≈102.9 × 57.2 × 74.9 mm)
  • Net Weight: Approx. 17.6 oz (499 g)

Material Compliance and Certifications

  • Certifications: UL Listed, CSA Certified, and compliant with IEC standards for assured safety and international compatibility.
  • Environmental Standards: RoHS- and REACh‑compliant, free from mercury, toxic heavy metals, and halogens. Meets Schneider Electric’s Green Premium sustainability criteria.

Suitability

  • The QOU320 shines in a range of settings—from standalone OEM equipment to home panel upgrades or commercial electrical systems. If you’re working with factory machinery, control panels, or three-phase installations requiring reliable short‑circuit and overload protection, this breaker offers solid performance in a compact form. Its flexible mounting and manual override features make it especially useful in spaces where retrofit or limited panel space is a concern.

 


Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. All trademarks and registered trademarks are the property of their respective owners.

Specifications

  • Width:2.25
  • Height:4.0
  • Depth:2.38
  • Poles:3
  • Amperes:20
  • A.I.C. Rating & Volts:10k @ 240VAC
  • Type:QOU
  • Approx Dimensions:2.25"W x 4.00"L x 2.38"D
  • Additional Notes:Cable-In/Cable-Out, Thermal Magnetic Circuit Breaker

Returns are easy

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

FREE shipping on breaker orders over $100 and all other items with orders over $500.

CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

Same Day Shipping

We strive to ship out your items within one business day.

In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).

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