SQUARE D NQ Main Lug
The Square D NQ Main Lug, Convertible Panel Interiors (MPN NQ442L4) is a 42-space, 400 A panelboard interior with an aluminum bus, compatible with QHB, QOB, and QOB-VH circuit breakers. Measuring 45 in Ht by 10 7/16…
SKU 3G-OTH-772276
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
Compliance & shipping
- Hazardous material
- Not classified as hazardous
- California Prop 65 warning
- No warning recorded
- Licence required
- No licence required
- Safety Data Sheet
- Not available
- Special shipping
- Required — additional freight charges may applyThis item requires special shipping, additional charges may apply.
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Product Description
The Square D NQ Main Lug, Convertible Panel Interiors (MPN NQ442L4) is a 42-space, 400 A panelboard interior with an aluminum bus, compatible with QHB, QOB, and QOB-VH circuit breakers. Measuring 45 in Ht by 10 7/16 in Wd, this unit supports flexible configuration for electrical distribution systems.
Frequently Asked Questions
What is the Square D NQ442L4 panelboard interior used for?
The Square D NQ442L4 is a 42-space, 400 A main lug convertible panel interior used in commercial and industrial electrical distribution systems. It accepts QHB, QOB, and QOB-VH circuit breakers and supports flexible configuration for branch circuit protection.
What are the specifications of the Square D NQ442L4?
The Square D NQ442L4 panelboard interior has 42 spaces, 400 A rating, aluminum bus, and measures 45 in Ht by 10 7/16 in Wd. It is compatible with QHB, QOB, and QOB-VH circuit breakers and is a main lug convertible design.
Where to buy Square D NQ442L4 panelboard interior worldwide?
3G Electric supplies the Square D NQ442L4 panelboard interior worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this Square D component.
How to select the right Square D panelboard interior for my system?
To select the correct Square D panelboard interior, match the number of spaces, ampere rating (400 A for NQ442L4), bus material (aluminum), and circuit breaker compatibility (QHB/QOB/QOB-VH). Verify voltage and enclosure type per your electrical distribution requirements.
Used in
Common applications for SQUARE DSQUARE D Products
3G Electric supplies SQUARE D square d nq main lug, convertible panel interiors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.