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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
4.3 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 4
Great, except for the edible one
Flavor Name: Chicken & Original, Size: X-Small
My elderly dog and my puppy both love these bones. They are 9lbs and 4.5lbs respectively and this is a good size for them. They also like the next size up and it is manageable for them as well.
The only gripe I have is the edible one, it comes apart in larger chunks (that are still very hard) and my dogs swallowed a few before I noticed how large the pieces were. I decided to throw that one away. Its been over a week and no negative side effects so maybe just me being overly cautious. For the price (gold box) just the other two bones were worth it. They last pretty much forever for my dogs, and I would say they are moderate chewers.
4 stars due to the issue with the edible bone.
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Reviewed in the United States on June 4, 2013
★★★★★ 5
Highly recommend
Flavor Name: Chicken & Original, Size: X-Small
My small dog likes a lot thank you for having i be buying more to give to my family too ❤️ buy you dont want to miss out
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Reviewed in the United States on April 18, 2026
★★★★★ 5
My little dog loves these.
Flavor Name: Bacon & Peanut Butter, Size: X-Small, Flavor Name: Bacon & Peanut Butter, Size: X-Small
These are the perfect size, texture, and density for my 9 lb chihuahua (rescued, of course! :)) He has a tiny mouth with tiny teeth and very little bite force so he needs a chewybone with a lot of give. I've been impressed with how clean these help keep his teeth (it's the saliva flow during the chewing that breaks down any lingering debris and the action of the nubs against the teeth and gums helps to rub off tartar and plaque, if you care to know the *why* behind it.) These are ideal for dogs like mine, and since small dogs tend to have a lot of dental problems due to overcrowded mouths, I couldn't be more grateful that these exist. These would probably also be good for the many rescued puppy mill dogs, who are often small breeds, who have dental issues due to malnutrition and exacerbated by overbreeding, especially in females whose bodies often rob the jaw bones of calcium for the sake of the fetuses they carry, when the pregnant dogs aren't given an appropriately enriched gestational diet. That leads to the little bleppy tongues sticking out all over that we often see in the canine survivors of back yard breeding operations, puppy mills, and the like. There are a lot of these dogs being rescued and adopted in the U.S. right now and these would likely be ideal for them. (In case any adopters of these little survivors are reading this. :)) These are for gentle chewers only, and there are a lot of dogs who fall into that category. They aren't , however, for dogs with an average bite or higher, which is where some of the complaints you hear about these are coming from. Know your dog's chewing needs and buy the size that fits their mouth, tooth type, and bite strength. My dog barely puts a dent in these after a year or more of chewing (watch for any degradation of the plastic and replace as needed, of course.) For little dogs like mine, these are just fantastic and I hope Nylabone keeps making these type of chew toys to keep our dogs healthy. :)
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Reviewed in the United States on February 22, 2019
★★★★★ 3
he only like the Dark one
Flavor Name: Bacon & Beef, Size: X-Small
love nylabones for my pup
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Reviewed in the United States on April 29, 2026
★★★★★ 5
My Dog's Favorite Nylabone
Flavor Name: Bacon & Beef, Size: X-Small
I've been testing out Nylabones the last couple months for my chihuahua puppy. He's a heavy chewer and too easily tears apart many of them, then others are too hard and I take them away because I fear for his teeth. This set is his favorite so far. He doesn't care about the peanut butter ones, loves the beef one, and is absolutely obsessed with the bacon one. He walks around with it in his mouth whenever he goes anywhere. Unfortunately, my senior chihuahua also loves the bacon one and there is now an ongoing feud over it, so guess I'm buying another pack. I like that these are just a little chewy without being too soft, but I still recommend keeping an eye on them as even my puppy has managed to start to get little pieces off. But it's more as frayed strings than chunk like I've had happen with some of the softer ones.
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Reviewed in the United States on February 22, 2023
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