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Description
QO 150 Amp 42-Space 52-Circuit Indoor Main Breaker Plug-On Neutral Load Center with CoverThe Square D QO 150 Amp Main Breaker 42 Space 42 Circuit Convertible Indoor Plug on Neutral Load Center for Plug on Neutral breakers is UL listed for residential, commercial and industrial power distribution. This load center is built with a shielded, copper bus bar that is plated for reliability. QO load centers are tested and listed only for QO circuit breakers. QO load centers are the "World's Finest" designed with industry leading features for
The Square D QO 150 Amp Main Breaker 42-Space 42-Circuit Convertible Indoor Plug-on Neutral Load Center for Plug-on Neutral breakers is UL listed for residential, commercial and industrial power distribution. This load center is built with a shielded, copper bus bar that is plated for reliability. QO load centers are tested and listed only for QO circuit breakers. QO load centers are the "World's Finest" designed with industry leading features for flexible application. QO load centers include features engineered for fast installation and wire savings.- California residents
- Engineered for a quick Plug-on Neutral breaker connection on every circuit, fewer connections, faster installation and no pigtails frees up gutter space
- Includes a factory-installed indoor cover
- Accommodates plug-on secondary surge arrestor (sold separately)
- Overhead/underground feed simply by rotating the device before installing
- Single phase
- Rated 120/240 VAC and 22,000 AIR short circuit current rating
- Designed with straight-in mains to save expensive cable and time
- Split branch neutral with terminal screws backed out offering with up to 50% more terminals than UL requires increases wiring flexibility saving installation time and simplifies wiring
- Thermoplastic interior is among the most rugged in the industry
- Slot/square drive screws let you use either standard flat blade screwdriver or square-head driver for positive drive and proper torque
- Convertible mains allow you to meet changing job site requirements by field converting main breaker load centers to main lugs and vice versa
- For protection from damage or theft on the job site, interiors can be easily removed with a single captive screw
- Three ground bar mounting locations (left, right and end) let you pick the easiest spot to wire
Features
| Item Weight | 36.4 |
| Product Weight (lb.) | 36.4 |
| Load Center Type | Main Breaker |
| Indoor/Outdoor | Indoor |
| Returnable | 180-Day |
| Number of Circuits | 42 |
| Maximum Amperage (amps) | 150 |
| Voltage (volts) | 120/240 |
| Electrical Product Type | Load Center |
| Number of Spaces | 42 |
| Indoor/Outdoor2 | Indoor |
| Number of Phases | 1 |
| Mounting Type | Plug In |
| Phase Type | 1 Phase |
| Load center width (in.) | 14.25 |
| Load center depth (in.) | 3.75 |
| Load center height (in.) | 37.98 |
| Manufacturer Warranty | Square D warrants its QO branch circuit breakers to be free from defects in material and workmanship under normal care and proper usage in a residential installation, for the lifetime of the load center in which it is installed. QO brand load centers are also covered under the same lifetime warranty. |
| Certifications and Listings | UL Listed |
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
4.8 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Only bone for my dog
Flavor Name: Chicken, Size: Medium
These are the only bones my dog will chew on. He loves both the chicken and bacon flavored. I just have to watch him as if they get too small I don't let him chew and will give him a new one.
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Reviewed in the United States on November 19, 2025
★★★★★ 1
Size information reversed. Smalls are medium and mediums are small.
Flavor Name: Bacon, Size: Medium
I love the product but the description is frustrating. I ordered the medium size bones expecting the 7 inch bones, but recieved the 5 inch bones. Apparently if you want the 7 inch bones you should choose small instead of medium. That makes no sense and is so irritating.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Holds up longer than other toys
My dog is picky. She lives this one. Keeps her entertained. Good size. Good Value for money.
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Reviewed in the United States on November 15, 2025
★★★★★ 4
Keep my dog entertained…for a while!!
My dog absolutely loves this toy! I spread a bit of peanut butter on it and he gets so excited every time. It keeps him busy for a few minutes, though he licks it clean super fast. Still a great way to give him a little treat and mental stimulation.
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Reviewed in the United States on October 25, 2025
★★★★★ 5
Performs as promised. Great value.
FANTASTIC!!! More than expected. We use it outside. Our 10 m.o. GSD loves it! It dosen't bounce like a ball. But it gives her plenty of exercise. The chewability is unbelievable. Definitely great product. Will buy & recommend for any chewer pup!
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Reviewed in the United States on October 22, 2025