The Square D QO3125SL is a circuit breaker lug kit with a current rating of 125 Amps and a voltage rating of 240VAC. It has an interrupting rating of 10kAIC at 240V. The QO3125SL has a plug-in connection type and includes long time and instantaneous trip functions.
Specifications
Brand
Square D
Series
QO
Amperage
125
Voltage
240VAC
Poles
3
Phase
3
Mounting Type
Plug-In
Approval
CSA, cURus
Interrupting Rating
10kAIC at 240V
Frame Type
QO
Connection Type
Plug-In
Protection
Thermal Magnetic
Functions
Long Time and Instantaneous Trip
Length (in)
2.31
Width (in)
2.24
Height (in)
3.5
Wire Gauge
AWG 12 to AWG 2/0, Cu/Al
For Use With
QO Series Load Centers
Standards
RoHS, REACh
Mpn
QO3125SL
Upc
785901031338
Gtin
785901031338
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5.0
Rated 5.0 out of 5 stars
Based on 255 reviews
5
Rated out of 5 stars
244
Total 5 star reviews: 244
4
Rated out of 5 stars
10
Total 4 star reviews: 10
3
Rated out of 5 stars
1
Total 3 star reviews: 1
2
Rated out of 5 stars
0
Total 2 star reviews: 0
1
Rated out of 5 stars
0
Total 1 star reviews: 0
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 8/2/25
Customers say this electrical supply company delivers products quickly and reliably. Many reviews mention the availability of hard-to-find breakers and components. The ordering process is straightforward, and items arrive well-packaged. Reviews frequently note competitive pricing and consistent product availability. Most users report their items fit and function as expected.
I received a new Square D breaker quickly at a reasonable price.
RM
Rodney M.
Verified Buyer
Reviewing
Square D QO250 2 Pole Circuit Breaker
Rated 3 out of 5 stars
10/11/25
Service
ordered sq D 90 Amp circuit breaker, received 100 amp breaker. Called super breakers, had to order 90 amp circuit breaker and pay and they shipped standard shipping, then have to mail back 100 amp breaker and wait for refund. set project back 3 days
GN
Genevieve N.
Verified Buyer
Reviewing
Square D QO240GFI 2 Pole Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
10/9/25
SUPERBREAKERS ROCKS
Fast, reliable, cheap, well-stocked inventory
RT
Ryan T.
Verified Buyer
Reviewing
Square D QO2200 2 Pole Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
10/1/25
OEM Quality & Reliability - Superior Pricing!
Product quality and reliability as expected but, for much less than other suppliers. Fast shipping with easy tracking and arrived on time. I'll definitely be using SuperBreaker again in the future and would highly recommend.
SL
Sandra L. G.
Verified Buyer
Reviewing
Square D QO115 1 Pole Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
10/1/25
Purchase of breakers
Great experience. My cost was $60 less than home Depot. Customer service was outstanding. Package received promptly. Will definitely recommend. Be careful with the restocking fees, they put circuit city out of business 😂