Delivering enhanced short-circuit protection, the Square D QO315VH is a 15A, three-pole miniature circuit breaker with a high interrupting capacity. It provides reliable thermal-magnetic protection for commercial and industrial branch circuits requiring elevated fault current ratings. This plug-on breaker is compatible with Square D QO load centers, as well as NQ and legacy NQOD panelboards. It features pressure plate terminals that accommodate 14-8 AWG copper or aluminum conductors.
Specifications
Brand
Square D
Series
QO
Part Number
QO315VH
Amperage
15A
Voltage
120VAC, 240VAC, 120/240VAC
Poles
3
Phase
3
AIC Rating
22kA @ 120VAC, 22kA @ 240VAC, 22kA @ 120/240VAC
Mounting Style
Plug-On
Terminal Type
Pressure Plate
For Use With
QO Load Centers, NQ Panelboards, NQOD Panelboards
Trip Technology
Thermal Magnetic
Trip Function Code
LI
Trip Function
Long-Time, Instantaneous
Trip Adjustability
Fixed
Wire Gauge
14-8 AWG (Al/Cu)
Max Wire
8 AWG
Min Wire
14 AWG
Available Options
Padlock Attachment
Standards
CSA C22.2 No. 5, UL 489, HACR
Approval
CSA, HACR, UL
Temp Rating
40C
Construction Features
Visual Trip Indicator, HACR Rated, High Interrupting Capacity
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Expedited Shipments
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4.9
Rated 4.9 out of 5 stars
Based on 273 reviews
5
Rated out of 5 stars
260
Total 5 star reviews: 260
4
Rated out of 5 stars
12
Total 4 star reviews: 12
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 12/3/25
Customers say these circuit breakers fit properly and work as expected. Many reviews mention fast shipping and competitive pricing compared to local suppliers. Users frequently note the company's extensive inventory, particularly for hard-to-find or specialty breakers. Common feedback includes satisfaction with product quality and reliable performance. Several customers appreciate finding items unavailable at local stores. While most praise the quick delivery and packaging, one customer experienced receiving the wrong amperage breaker. Overall, reviewers consistently highlight the combination of good pricing, fast service, and product availability.
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fast delivery, packaging was good.
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