Square D QO320SWN 20A 3P 120/240V QO Switched Neutral Breaker

Retail Price: $75.00
Price: $52.00
  • SKUCR070D
In stock - 3 units available.
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Square D QO320SWN Circuit Breaker

Stock photo shown for reference only. You will receive a unit of the listed catalog number in the condition stated above, inspected and tested to ESP Product Standards. Cosmetic appearance may vary.

1-Year Operational Guarantee Every breaker we sell — new, surplus, reconditioned, or used — is guaranteed to operate normally for one year from date of sale. Product Standards
Same-Day Shipping In-stock orders placed before 12pm PST typically ship the same business day, with UPS tracking provided. Shipping details
30-Day Returns Return authorization available within 30 days of receipt. Return policy
Talk to a Real Person Questions about fit, condition, or availability? Call 800-664-4377. Credit terms available for approved accounts.
Found this part for less somewhere else? Surplus and reconditioned prices vary widely with scarcity and condition — tell us what you found and make us an offer. Include the catalog number and we’ll respond same business day: call 800-664-4377 or email us. Every ESP unit is tested and backed by our 1-year operational guarantee — make sure you’re comparing like for like.

Description

Square D QO320SWN Specifications

ManufacturerSquare D / Schneider Electric
Catalog NumberQO320SWN
SeriesQO
Amperage20 A
Voltage120/240V AC · 48V DC
Poles3-Pole, common trip
MountingPlug-In
Trip functionThermal-Magnetic — common trip, individual element per pole calibrated at 40°C
NeutralSwitched neutral — third pole switches the grounded conductor
Interrupting rating10 kAIC @ 120/240V AC
IndicationVisi-Trip® visual trip indication
Panel spaces3
PanelboardsQO load centers · NQOD
Wire range14–8 AWG Cu/Al
RatingsHACR rated · SWD rated
ListingsUL File E84967 · CSA Master Contract 153555
Shipping weight1.2 lb
ConditionReconditioned — 1-year operational guarantee

Sold reconditioned, inspected and tested to ESP Product Standards, and guaranteed to operate normally for one year from the date of sale.

Switched neutral, not a three-phase breaker. On the QO-SWN the third pole switches the grounded conductor rather than protecting a third ungrounded phase, so the device opens all grounded and ungrounded conductors simultaneously. It is not a substitute for a QO320 on a three-phase branch. Schneider discontinued the catalog number on 11 March 2022.

More Details

Switched-neutral breakers solve a narrow problem: circuits where the grounded conductor has to open with the ungrounded ones, so that nothing downstream stays referenced to the system when the breaker is off. Health care isolated-power work, certain signage and sign-lighting circuits, and some legacy control schemes were all written around that behaviour. Schneider discontinued the QO320SWN in March 2022, and because the switching pole is built into the case there is no field conversion and no current replacement in the QO line. That makes the surplus channel the only channel. Each unit is tested for trip function on the protected poles and for continuity through the neutral pole.

What is "surplus new"?

Surplus new means the item has never been installed or put into service. It may not arrive in its original packaging, but it has never been used.

What does "reconditioned" mean?

Reconditioned items have been inspected, cleaned, and tested to confirm they operate to the manufacturer's original specifications. Every reconditioned item we sell carries a one-year operational guarantee.

How fast will my order ship?

In-stock orders placed before 12pm PST usually ship the same business day via UPS, with tracking provided.

What if I can't find the item I need?

Call 800-664-4377 — we stock thousands of obsolete and hard-to-find electrical parts that may not yet be listed online.

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