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- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
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Description
QO 200 Amp 42-Space 42-Circuit 3-Phase Main Breaker Load CenterThe Square D QO 3 Phase 200 Amp Main Breaker 42 Space 42 Circuit Convertible Indoor Load Center 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
The Square D QO 3-Phase 200 Amp Main Breaker 42-Space 42-Circuit Convertible Indoor Load Center 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
- Cover sold separately
- Accommodates plug-on secondary surge arrestor (sold separately)
- Overhead/underground feed simply by rotating the device before installing
- 3 phase
- Rated 208Y/120 VAC and 25,000 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
- 3 ground bar mounting locations (left, right and end) let you pick the easiest spot to wire
Features
| Item Weight | 26.5 |
| Number of Circuits | 42 |
| Load Center Mounting Type | Flush,Surface |
| Voltage (volts) | 120/240 |
| Load Center Type | Main Breaker |
| Electrical Product Type | Load Center |
| Product Weight (lb.) | 26.5 |
| Number of Spaces | 42 |
| Phase Type | 3 Phase |
| Indoor/Outdoor | Indoor |
| Returnable | 180-Day |
| Mounting Type | Plug-On |
| Maximum Amperage (amps) | 200 |
| Load center width (in.) | 14.25 |
| Load center depth (in.) | 3.75 |
| Load center height (in.) | 39.37 |
| 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
4.5 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 2
Quality control lacking
One tee conector was missing. Nothing avaliable locally that fits.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 13, 2025
★★★★★ 1
It doesn’t stay in
The pipe keeps coming out. Not worth the money. Not sturdy to hold a top table.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2024
★★★★★ 2
Good finish, poor hardware.
Set screws are poor quality and are sometimes powdercoated on the exposed threads. Leads to striped hex sockets and inability to tighten properly.
Durable finish as evidenced by no visible damage after throwing parts across the shop in frustration.
Ended up running self tapping screws thru parts to complete assembly.
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Reviewed in the United States on February 26, 2024
★★★★★ 1
Kinda flimsy…
Thought the assembly was metal, it’s some kind of PVC.
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Reviewed in the United States on September 22, 2025
★★★★★ 5
Stable and easy to assemble
I used these to support a heavy piece of countertop would to create a side table. Looks great and holds steady.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2023
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