Electrical Supplies
Breakers, panels, wire, conduit, and safety gear from Square D, Eaton, Siemens, and GE. Not just solar.
1786 products · Trade pricing · Full OEM warrantiesLive prices & real stock
Buy now at published prices — no RFQ, no quote-wait, no bidding against other buyers.
Authorized distributor
Full factory warranties and one point of accountability. Not an anonymous marketplace seller.
Freight handled nationwide
Pallet, liftgate, and truckload logistics arranged for you — priced up front at checkout.
1-business-day quotes
Job-lot and project pricing answered by a specialist within one business day.
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Buying Electrical Supplies by the pallet or truckload?
Tiered contractor and volume pricing with freight quoted up front. Send your material list — most quotes come back same business day.
Panel & Breaker Basics
Match breakers to the panel brand and series — a Square D QO breaker does not belong in a Homeline panel, and no tandem belongs in a full panel. Main lug versus main breaker depends on service versus subpanel use; subpanels need isolated neutrals, with grounds bonded at the first disconnect only. For generator interlocks and transfer switches, confirm the panel model number before ordering — one letter difference changes the kit.
Pro Tips
- Breakers must match panel brand and series — QO is not Homeline
- 200A main-breaker panels for new services and solar-ready busbars
- Transfer switch or interlock — never backfeed a panel
Electrical Supplies — Frequently Asked Questions
Will this breaker fit my panel?
Breakers must match the panel brand and series — a Square D QO breaker does not fit a Homeline panel, and Eaton BR and CH are not interchangeable. Send us the panel model number and we will confirm the exact breaker.
Main lug or main breaker panel?
Main breaker panels serve as service disconnects; main lug panels work as subpanels fed from an upstream breaker. Subpanels need isolated neutrals — grounds bond at the first disconnect only.
Can I backfeed my panel with a generator?
Never backfeed through a dryer outlet — it is illegal and lethal to line workers. Use a listed transfer switch or a manufacturer interlock kit matched to your panel model.
Do you quote contractor volume pricing?
Yes — job-lot and project quotes are our daily business. Send your material list for a volume quote with freight.
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Electrical Supplies — Delivered Nationwide
Electrical supplies at PES Supply — Square D QO and Homeline load centers, Eaton BR and CH breakers, Siemens panels, GE, fuses, transfer switches, transformers, conduit, boxes, and covers. Full supply-house inventory for contractors and facility maintenance with volume pricing and job-lot quotes.