
Commercial Ordering FAQ
How do I verify that Square D PQ4620G – Busway Plug In Unit, 200 A, 277/480/600 V AC, PQ, H, K, R, 3 Phase, 4 Wire with Ground is the correct replacement part for my equipment?
Check the OEM part number (PQ4620G) 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 PQ4620G Busway Plug In Unit to contractors, facility teams, and purchasing departments. Get fast dispatch, contractor-ready quotes, and order desk support at 850-565-3492.
Product Details
Amps 200 A, Voltage 277/480/600V AC, Number of Poles 4, 3 Phase, 4 Wire with Ground, Enclosure Rating NEMA 1, For Use With SE Square D I-Line and I-Line II Busway, Fusible Yes, Fuse Class H, K, R, Breaker Type PQ, Height 16 13/64 in, Width 22 1/2 in, Depth 11 13/32 in, Standards CSA Certified, UL Listed.
Technical Specifications
| Brand | Square D |
|---|---|
| Manufacturer Part Number | PQ4620G |
OEM Part Verification: Confirm Square D part number PQ4620G 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 PS3620G – Busway, 200 A, 600 V AC, PS, H, K, R, 3 Phase, 3 Wire With Ground – OEM Part # PS3620G
- Square D PQ4610G – Busway, 100 A, 277/480/600 V AC, PQ, H, K, R, 3 Phase, 4 Wire With Ground – OEM Part # PQ4610G
- Square D PS4220G – Busway, 200 A, 240 V AC, PS, H, K, R, 3 Phase, 4 Wire With Ground – OEM Part # PS4220G
- Square D PQ4606G – Busway Plug In Unit, 60 A, 277/480/600 V AC, PQ, H, K, R, 3 Phase, 4 Wire With Ground – OEM Part # PQ4606G
- Square D PS4620G – Busway, 200 A, 600 V AC, PS, H, K, R, 3 Phase, 4 Wire With Ground – OEM Part # PS4620G
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.