Square D QO120M100PC – Load Center, QO, 20 Spaces, 100 A, 120/240 V AC, Main Circuit Breaker, 1 Phase
Square D QO120M100PC – Load Center, QO, 20 Spaces, 100 A, 120/240 V AC, Main Circuit Breaker, 1 Phase
Couldn't load pickup availability
Ships factory-new in original packaging.
Not sure if a compatible flange, seal kit, or accessory exists for this item? Ask our team — we're happy to help you find the right part.
TIPS Contract Vendor
Officially awarded purchasing cooperative vendor.
Why Buy From Us
Every quote personally reviewed. Direct sourcing from top manufacturers.
Commercial Ordering FAQ
How do I verify that Square D QO120M100PC – Load Center, QO, 20 Spaces, 100 A, 120/240 V AC, Main Circuit Breaker, 1 Phase is the correct replacement part for my equipment?
Check the OEM part number (QO120M100PC) against your equipment nameplate or the manufacturer's repair parts list before ordering. If you are not sure, call the National Boiler Supply order desk at 850-565-3492 and we can cross-reference your equipment model and serial numbers before the order ships.
What are the shipping and freight options for Square D orders?
Standard parcel orders ship quickly from commercial distribution centers. Shipping is a $35 flat rate on orders under $999, and qualifying orders of $999 or more ship free by ground. Heavy equipment that has to move by LTL freight is quoted after the order is placed and confirmed with you before dispatch.
Can contractors or facility managers request a formal quote or use a Purchase Order (PO)?
Yes. National Boiler Supply works with commercial contractors, mechanical engineers, municipalities, and facility teams. Call 850-565-3492 for a formal quote, bulk pricing, or PO and tax-exempt order processing.
What if this Square D part is marked Call to Order or needed for an emergency repair?
Call our order desk at 850-565-3492. We can confirm factory lead times right away and arrange expedited air or hot-shot delivery when a repair cannot wait.
National Boiler Supply supplies the Square D QO120M100PC Load Center to contractors, facility teams, and purchasing departments. Get fast dispatch, contractor-ready quotes, and order desk support at 850-565-3492.
Product Details
Number of Spaces 20, Amps 100 A, Voltage 120/240V AC, Circuit Breaker Type QO, Included Enclosure Cover Combination Flush/Surface Cover, Main Circuit Breaker or Main Lug Main Circuit Breaker, Max. No. of Tandem Breakers 4, Phase 1, Height 17.94 in, Width 14.25 in, Depth 3 3/4 in, For Use With Square D QO Circuit Breakers, Short Circuit Current Rating 22 kA, Enclosure NEMA Rating 1, Recommended Flush Cover Included, Recommended Surface Cover Included, Color Gray.
Technical Specifications
| Brand | Square D |
|---|---|
| Manufacturer Part Number | QO120M100PC |
OEM Part Verification: Confirm Square D part number QO120M100PC against your equipment nameplate or parts list before ordering. Our order desk can cross-check it for you.
Order Desk Support: Call 850-565-3492 for formal quotes, lead times, and volume pricing.
Related Square D Components & Replacement Parts
- Square D QO120VH – Miniature Circuit Breaker, QO Series, 20 A, 1 Pole, 120/240 V AC, 22k A at 120/240 V AC – OEM Part # QO120VH
- Square D QO120M100P – Load Center, 20 Spaces, 100 A Amps, 120/240 V AC – OEM Part # QO120M100P
- Square D QO120VHCAFI – Miniature Circuit Breaker, Homeline Series, 20 A, 1 Pole, 120 V AC, 22k A at 120 V AC – OEM Part # QO120VHCAFI
- Square D QO120L125PG – Load Center, QO, 20 Spaces, 125 A, 120/240 V AC, Main Lug, 1 Phase – OEM Part # QO120L125PG
- Square D QO120VHDF – Miniature Circuit Breaker, QO Series, 20 A, 1 Pole, 120 V AC, 22k A at 120 V AC – OEM Part # QO120VHDF
Need help confirming a part number or cross-reference? Call our order desk at 850-565-3492.
Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
Apply for Trade Account & Terms →📋 Procurement & Shipping Notice
- LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
- Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?
👉 Request a Commercial Quote or contact our procurement team for direct freight scheduling.