Square D Panelboards

About Square D Panelboard - Buying Guide and Specifications

Square D panelboards are the backbone of commercial and industrial power distribution across the United States. Verified Breakers stocks the NQ, I-Line, and PowerPact series for facilities that need the right panel now — not in 14 weeks. We ship nationwide with 24 to 48 hour turnaround on most configurations.

Square D Panelboard Series We Carry

Schneider Electric's Square D lineup covers every commercial and industrial power distribution scenario. Our inventory includes:

  • Square D NQ Panelboards — The industry standard lighting and appliance panelboard for commercial buildings, 100A to 400A, main breaker and main lug configurations, 42-circuit capacity. Available in NEMA 1 and NEMA 12 enclosures.
  • Square D NF Panelboards — Industrial-grade feeder panelboards for mechanical equipment rooms and heavy commercial applications, 400A to 1200A.
  • Square D I-Line Panelboards — High-ampacity distribution panels for large commercial and industrial facilities, 600A to 2000A. Accepts I-Line breaker frames for fast component replacement in the field.
  • Square D PowerPact Panelboards — Modular branch circuit protection for facilities with high circuit counts. Available in bolt-on and plug-in configurations.
  • Square D QO Load Centers — Residential and light commercial load centers, 100A to 200A, for retrofit and new construction applications.

Amp Ratings and Configurations

We stock Square D panelboards across the full commercial and industrial range:

  • 100A, 150A, 200A — light commercial and retail applications
  • 400A and 600A — commercial tenant feeds, mechanical rooms, and large retail
  • 800A and 1200A — industrial main distribution and substation feeds
  • 1600A to 2000A — heavy industrial and utility substation applications
  • Three-phase 208Y/120V, 480Y/277V, and 240/120V delta configurations
  • NEMA 1 (indoor) and NEMA 3R (outdoor raintight) enclosures
  • Pre-populated with circuit breakers per customer specifications on request

Square D Panelboard Applications

Square D NQ panelboards are the dominant specification in commercial construction because they're reliable, code-compliant, and supported by a large installed base of compatible breakers. When a panel fails in a commercial building, the fastest path to restoration is a like-for-like NQ replacement — pre-populated and labeled to match the existing single-line diagram.

Industrial facilities running I-Line panelboards benefit from the plug-in breaker design: replacing or adding a circuit takes minutes, not a full shutdown. We can configure I-Line panels to match your existing layout before shipment, so your electricians are installing, not assembling.

Why Source From Verified Breakers

Authorized Schneider Electric distributors operate on standard lead times — typically 10 to 20 weeks on custom configurations, 2 to 4 weeks even on stock items during peak demand. Verified Breakers operates on a different model. Our inventory is purchased and held, not drop-shipped on order. When a contractor or facilities team needs a Square D panelboard to keep a job moving, we ship within 24 to 48 hours.

We serve electrical contractors, facilities managers, data centers, industrial operators, and plant maintenance teams across the country. Our technical team can confirm compatibility with existing breaker frames, enclosure sizing, and voltage configurations before your order ships.

Custom Square D Panel Builds

We pre-populate Square D panelboards with circuit breakers to your specifications — amp ratings, pole configurations, and labeling included. This eliminates field assembly time and reduces the risk of incorrect circuit breaker installation on a job site with a deadline.

Request a Quote

Tell us the series, amp rating, circuit count, and configuration. We'll confirm stock availability and ship time, typically within the same business day.

Square D NQ, NF, I-Line, and PowerPact panelboards — in stock, nationwide shipping, 24–48 hour turnaround.

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