Square D QO20303020 20/30A Quad Tandem Miniature Circuit Breaker
- 20/30A
- 2 Pole
- Plug-On
Quantity
Square D QO20303020 - 20/30A Quad Tandem Miniature Circuit Breaker
New
Quantity
Description
Designed for Square D QO load centers, this quad tandem miniature circuit breaker provides two 1-pole 20A and two 1-pole 30A circuits while only occupying two panel spaces. It is an excellent choice for expanding residential circuit capacity without upgrading the enclosure. This unit features Square D's exclusive Visi-Trip indicator, which provides clear visual confirmation when the breaker trips. It delivers a 10 kAIC rating at 120/240 VAC and utilizes a simple plug-on connection.Specifications
| Brand | Square D |
|---|---|
| Series | QO |
| Amperage | 20/30A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | QO |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | QO Load Centers |
| Wire Gauge | 14-8 AWG (Cu/Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Special Classification | Quad Tandem |
|---|---|
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
| Accessories | Handle Tie (QOTHT) |
| Standards | HACR, RoHS, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated, Tandem |
Product FAQs
6 answersHow many panel spaces does the QO20303020 require?
This quad tandem breaker requires two standard 3/4-inch spaces in a compatible Square D QO load center.
Is the QO20303020 a CTL or non-CTL breaker?
It is a non-CTL (Circuit Total Limiting) breaker. It lacks a rejection clip and is intended for use in older legacy Square D QO panels that accept non-CTL replacement tandems.
What is the exact circuit configuration of this quad breaker?
The assembly provides two independent 1-pole 20A circuits on the outer positions and one 2-pole 30A circuit on the inner positions.
Are the inner 30A poles tied together for 240V loads?
Yes, the inner 30A poles are connected with a factory-installed QOTHT handle tie, providing common switching for a 240V load.
Can I tie the outer 20A poles together for a 240V circuit?
No, Square D does not offer a handle tie for the outer poles of QO quad tandem breakers. The 20A poles must be used as independent 120V circuits.
What individual breakers make up the QO20303020 kit?
This unit is packaged as a set containing one QO2030 tandem breaker and one QO3020 tandem breaker, joined by a center handle tie.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 285 reviews.
- GCGerard C.Verified BuyerReviewingSquare D QO130GFI - 30A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/21/26Great !
I could not find the breaker in hardwood stores. Superbreakers took car of it in a week.
- RHRoy H.Verified BuyerReviewingSquare D QO280 - 80A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/17/26Square D QO280 - 80A 2 Pole Miniature Circuit Breaker
Exactly as described
- KWKevin W.Verified BuyerReviewingSquare D QO120 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/15/26Great Price
Brand spanking new!
- CEchristopher e.Verified BuyerReviewingSquare D QO115PDF - 15A Dual Function Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/11/26My breakers
Had a hard time locating these breakers locally, when I did find 1 they wanted to charge me triple what superbreakers charged. Items delivered exactly when they said they would, were exactly what I ordered. Appreciated the ease of ordering, definitely my go to from this point on
- JCJerry C.Verified BuyerReviewingSquare D QO250 - 50A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/8/26Great quality
No issues