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SQUARE D Panelboard Interior: 18 Spaces, 100 A Amps, Aluminum, QHB/QOB/QOB-VH, 21 in Ht - Square D NQ Main Lug, Convertible Panel Interiors
SQUARE DSquare D NQ Main Lug, Convertible Panel Interiors

SQUARE D Panelboard Interior: 18 Spaces, 100 A Amps, Aluminum, QHB/QOB/QOB-VH, 21 in Ht

The Square D NQ Main Lug, Convertible Panel Interiors (MPN NQ18L1) is a 100 A panelboard interior with 18 spaces, featuring an aluminum bus and compatibility with QHB, QOB, and QOB-VH circuit breakers. Measuring 21…

SKU 3G-OTH-772146

Brand
SQUARE D
Item
Panelboard Interior: 18 Spaces, 100 A Amps, Aluminum, QHB/QOB/QOB-VH, 21 in Ht
Category
Square D NQ Main Lug, Convertible Panel Interiors
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Technical Specifications

SQUARE D
Manufacturer Part Number
NQ18L1
Type
Aluminum, QHB/QOB/QOB-VH
Wd
10 7/16 in
Ht
21 in
Amps
100 A
Bus Material
Aluminum
Circuit Breaker Series
QOB-VH
View Full Spec Sheet

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SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Square D NQ Main Lug, Convertible Panel Interiors (MPN NQ18L1) is a 100 A panelboard interior with 18 spaces, featuring an aluminum bus and compatibility with QHB, QOB, and QOB-VH circuit breakers. Measuring 21 in Ht by 10 7/16 in Wd, this unit supports flexible configuration for branch-circuit distribution in commercial and industrial electrical systems.

Frequently Asked Questions

What is the Square D NQ18L1 panelboard interior used for?

The Square D NQ18L1 panelboard interior distributes branch-circuit power in commercial and industrial electrical systems. It supports QHB, QOB, and QOB-VH circuit breakers for flexible configuration of lighting, appliance, and equipment circuits.

What are the specifications of the Square D NQ18L1 panelboard interior?

The Square D NQ18L1 is a 100 A main lug convertible panel interior with 18 spaces. It has an aluminum bus, measures 21 in Ht by 10 7/16 in Wd, and accepts QHB, QOB, and QOB-VH circuit breakers. The bus material is aluminum.

Where to buy the Square D NQ18L1 panelboard interior worldwide?

3G Electric supplies the Square D NQ18L1 panelboard interior worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this Square D part.

How to select the correct Square D panelboard interior for my system?

Select a Square D panelboard interior by matching the amp rating (100 A for NQ18L1), number of spaces (18), bus material (aluminum), and circuit breaker series compatibility (QHB/QOB/QOB-VH). Verify voltage and enclosure type per your electrical system design.

Used in

Common applications for SQUARE D
Commercial building electrical panels — Square D QO series plug-in circuit breakers for branch circuit protection
Industrial motor control centers — Square D QOB series bolt-on breakers in NQOD panelboards
Heating equipment installations — Square D QOU series unit-mount breakers for overcurrent protection
Outdoor electrical distribution — Square D L-Frame enclosures housing LAL/LHL breakers for 400 A service
Indoor facility power distribution — Square D Q-Frame enclosures with QBL/QDL breakers for 225 A circuits
Retrofit and replacement in existing Square D load centers — QO series breakers for 120/240V AC systems

SQUARE 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.

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Panelboard Interior: 42 Spaces, 600 A Amps, Copper, QHB/QOB/QOB-VH, 45 in Ht, 10 7/16 in Wd (MPN NQ442L6C). Key specifications — Bus Material: Copper; Circuit Breaker Series: QOB-VH.
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Panelboard Interior: 42 Spaces, 600 A Amps, Copper, QHB/QOB/QOB-VH, 45 in Ht, 10 7/16 in Wd (MPN NQ442L6C). Key specifications — Bus Material: Copper; Circuit Breaker Series: QOB-VH.
Panelboard Interior: 30 Spaces, 225 A Amps, Copper, QHB/QOB/QOB-VH, 27 in Ht, 10 7/16 in Wd (MPN NQ430L2C). Key specifications — Bus Material: Copper; Circuit Breaker Series: QHB.
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Panelboard Interior: 30 Spaces, 225 A Amps, Copper, QHB/QOB/QOB-VH, 27 in Ht, 10 7/16 in Wd (MPN NQ430L2C). Key specifications — Bus Material: Copper; Circuit Breaker Series: QHB.
Panelboard Interior: 18 Spaces, 100 A Amps, Aluminum, QHB/QOB/QOB-VH, 27 in Ht, 10 7/16 in Wd (MPN NQ418L1). Key specifications — Bus Material: Aluminum; Circuit Breaker Series: QOB-VH.
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Panelboard Interior: 18 Spaces, 100 A Amps, Aluminum, QHB/QOB/QOB-VH, 27 in Ht, 10 7/16 in Wd (MPN NQ418L1). Key specifications — Bus Material: Aluminum; Circuit Breaker Series: QOB-VH.
Panelboard Interior: 42 Spaces, 225 A Amps, Copper, QHB/QOB/QOB-VH, 33 in Ht, 10 7/16 in Wd (MPN NQ442L2C). Key specifications — Bus Material: Copper; Circuit Breaker Series: QOB-VH.
SQUARE D
Panelboard Interior: 42 Spaces, 225 A Amps, Copper, QHB/QOB/QOB-VH, 33 in Ht, 10 7/16 in Wd (MPN NQ442L2C). Key specifications — Bus Material: Copper; Circuit Breaker Series: QOB-VH.
Panelboard Interior: 30 Spaces, 225 A Amps, Copper, QHB/QOB/QOB-VH, 27 in Ht, 10 7/16 in Wd (MPN NQ30L2C). Key specifications — Bus Material: Copper; Circuit Breaker Series: QOB.
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Panelboard Interior: 30 Spaces, 225 A Amps, Copper, QHB/QOB/QOB-VH, 27 in Ht, 10 7/16 in Wd (MPN NQ30L2C). Key specifications — Bus Material: Copper; Circuit Breaker Series: QOB.
Panelboard Interior: 42 Spaces, 225 A Amps, Aluminum, QHB/QOB/QOB-VH, 33 in Ht, 10 7/16 in Wd (MPN NQ42L2). Key specifications — Bus Material: Aluminum; Circuit Breaker Series: QOB-VH.
SQUARE D
Panelboard Interior: 42 Spaces, 225 A Amps, Aluminum, QHB/QOB/QOB-VH, 33 in Ht, 10 7/16 in Wd (MPN NQ42L2). Key specifications — Bus Material: Aluminum; Circuit Breaker Series: QOB-VH.
Panelboard Interior: 30 Spaces, 600 A Amps, Copper, QHB/QOB/QOB-VH, 45 in Ht, 10 7/16 in Wd (MPN NQ430L6C). Key specifications — Bus Material: Copper; Circuit Breaker Series: QHB.
SQUARE D
Panelboard Interior: 30 Spaces, 600 A Amps, Copper, QHB/QOB/QOB-VH, 45 in Ht, 10 7/16 in Wd (MPN NQ430L6C). Key specifications — Bus Material: Copper; Circuit Breaker Series: QHB.
Panelboard Interior: 18 Spaces, 100 A Amps, Copper, QHB/QOB/QOB-VH, 27 in Ht, 10 7/16 in Wd (MPN NQ418L1C). Key specifications — Bus Material: Copper; Circuit Breaker Series: QOB-VH.
SQUARE D
Panelboard Interior: 18 Spaces, 100 A Amps, Copper, QHB/QOB/QOB-VH, 27 in Ht, 10 7/16 in Wd (MPN NQ418L1C). Key specifications — Bus Material: Copper; Circuit Breaker Series: QOB-VH.