How does shipping work for orders on MRO Exchange?

Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

What payment methods does MRO Exchange accept?

MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

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Square D QO124M125P Main Breaker Load Center 120V / 240V Factory Sealed

$199.00 USD

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✓ 30-day returns on every item — return policy

ConditionFactory Sealed MPNQO124M125P Stock #0526-02258

30-day returns on every item. Photos reflect the actual item’s current condition — see our return policy and condition guide.

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⚡ Same-day shipping available — order by 11 am CT ($100 add-on at checkout)

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The Square D QO124M125P is a QO series plug on neutral indoor load center manufactured by Schneider Electric. This single phase, three wire load center is rated for 120/240V AC, 50/60 Hz, with a 125A convertible main breaker and a bus bar rating of 125A maximum. The enclosure provides 24 spaces and accommodates up to 24 circuits, expandable to 34 circuits when used with QO tandem breakers (20A maximum, non CTL). Short circuit current rating is 22 kA. The unit is housed in a NEMA 1 indoor enclosure with overall dimensions of 14.25 in. wide by 20.92 in. high by 3.75 in. deep, finished in gray. Construction includes a shielded tin plated copper bus and accepts 6 to 2/0 AWG AL/CU wire. The plug on neutral design supports faster installation of QO CAFI, GFI, and dual function breakers by eliminating the pigtail connection at the neutral bar. The load center is UL listed and assembled in the USA. Cover (QOC24UF flush or QOC24US surface) and PK15GTA ground bar are sold separately. Applications include residential, commercial, remodel and replacement, and agricultural panelboard installations where QO branch circuit breakers are specified. Packaging shows the original Schneider Electric retail carton with full product labeling, dimensional graphics, and UPC 785901609544.

Stock # 0526-02258

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.