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Description
Square D QOB340 40A 3-Pole Standard – Bolt-On – 120/240VThe Square D QOB340 40A 3 Pole Standard Bolt On 120 240V circuit breaker provides dependable 40 Amp, 3 pole thermal magnetic protection for residential and commercial 120 240V AC systems. Designed for Square D QO loadcenters and NQ NQOD panelboards, this bolt on breaker features a 10 kAIC interrupt rating, ensuring reliable overcurrent protection. The thermal magnetic trip mechanism and Visi Trip indicator allow for fast fault identification and
The Square D QOB340 40A 3-Pole Standard – Bolt-On – 120/240V circuit breaker provides dependable 40 Amp, 3-pole thermal-magnetic protection for residential and commercial 120/240V AC systems. Designed for Square D QO loadcenters and NQ/NQOD panelboards, this bolt-on breaker features a 10 kAIC interrupt rating, ensuring reliable overcurrent protection. The thermal-magnetic trip mechanism and Visi-Trip indicator allow for fast fault identification and troubleshooting. With support for copper and aluminum conductors up to AWG 2, it delivers durable and safe performance for branch circuits in both commercial and residential applications.
Voltage and Rating
- Current Rating: 40 Amps
- Voltage Rating: 120/240 Volts AC
- Interrupting Capacity: 10 kAIC
- Frequency: 50/60 Hz
Key Specifications
- Breaker Type: Standard (thermal-magnetic)
- Number of Poles: 3-Pole
- Mounting Type: Bolt-On
- Product Range: QO (for Square D QO loadcenters, NQ and NQOD panelboards and equipment)
- Application: Residential and commercial branch circuit protection
- Special Features: Thermal-magnetic trip, Visi-Trip indicator
- Ratings: UL Listed, CSA
Technical Specifications
- Connection Type: Bolt-on
- Wire Size: AWG 8–2 Cu/Al
- Terminal Tightening Torque: 44.3 lb-in
- Operating Mechanism: Thermal-magnetic
- Interrupt Rating: 10 kAIC
- Certifications: UL Listed, CSA
Product Data
- Manufacturer: Schneider Electric
- Brand: Square D
- Model Number: QOB340
- UPC: 785901417149
Dimensions
-
- Height: 3.1 in
- Width: 2.2 in
- Depth: 2.9 in
- Weight: 0.800 lbs
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 4
Good pillows
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
Takes some getting used to but and the cooling doesn’t last very long in my opinion, but overall amazing comfy pillows. The materials are good and are washable. I mostly stopped waking up with a stiff neck and back.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Believe the Reviews
Color: Cooling Blue Cover, Size: King (Pack of 2)
I purchased these pillows because we were in need of new pillows, I previously had allswell pillows which were from walmart and they were good to start but now they tragically became very sparse and it started to effect my sleep so I saw these after careful review on other pillows and reviews I came across these and I saw some reviews and videos and I ordered them.. first they are king size we ordered they are perfect for the bed, they are plump and soft, they are memory foam which has always worked out for me for support and kept it’s shape these are great it did have a little smell I guess from packaging but other than that they are a huge upgrade from what we had before! I’m excited because they are cooling too! for the price point can’t beat it and this is coming from someone who was about to spend money on a purple pillow this will be good for now definitely buy it.
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Reviewed in the United States on March 28, 2026
★★★★★ 3
Inconsistent
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
Ive ordered two different batches of these pillows, the first was a 2 pack, the second batch was a 4 pack. The pillows that came in the 2 pack have a different quality to them. The memory foam feels thicker, takes long to depress and to spring back to form. It offers more resistance, a heavier odor (at the start), and was the pillow that I fell in love with. Things changed when I ordered the 4 pack a couple months later. There was an inconsistency between the foam in these two different batches. both sets of pillows are comfortable. The first batch being firmer means I had to remove more foam before it became comfortable but the 2nd batch being more springy, I was able to keep all the foam inside. I docked a couple stars because I’m not able to provide a consistent experience with these pillows across all three beds in my home.
If you need a pillow, order a set and be happy. If you want a bunch of memory foam pillows throughout your house, maybe look elsewhere as these may not all be identical.
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Reviewed in the United States on January 17, 2026
★★★★★ 5
Very cool and comfortable pillows. Great value.
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
These pillows are everything described on the site. They do retain shape and don’t flatten out after sleeping all night. They are nice and clean looking and comfortable. The fit on my king size bed is perfect cause I prefer the size to king size. Haven’t had to wash them yet but I have had other pillows with the same material inside and the wash ability is great.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Great pillow
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
The pillows feel great. Being able to remove portions of the interior allowed me and my wife to have a perfect fit. They do stay cool which seems to have helped with my restlessness.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
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