We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

SQUARE D Panelboard Interior: 30 Spaces, 400 A Amps, Aluminum, QHB/QOB/QOB-VH, 45 in Ht - Square D NQ Main Lug, Convertible Panel Interiors
SQUARE DSquare D NQ Main Lug, Convertible Panel Interiors

SQUARE D Panelboard Interior: 30 Spaces, 400 A Amps, Aluminum, QHB/QOB/QOB-VH, 45 in Ht

The Square D NQ Main Lug, Convertible Panel Interiors (MPN NQ30L4) is a 30-space, 400 A panelboard interior with an aluminum bus, measuring 45 in Ht by 10 7/16 in Wd. It accepts QHB, QOB, and QOB-VH circuit breakers…

SKU 3G-OTH-772232

Brand
SQUARE D
Item
Panelboard Interior: 30 Spaces, 400 A Amps, Aluminum, QHB/QOB/QOB-VH, 45 in Ht
Category
Square D NQ Main Lug, Convertible Panel Interiors
Available to Order
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Worldwide Shipping
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

SQUARE D
Manufacturer Part Number
NQ30L4
Type
Aluminum, QHB/QOB/QOB-VH
Wd
10 7/16 in
Ht
45 in
Amps
400 A
Bus Material
Aluminum
Circuit Breaker Series
QOB-VH

Technical Documents

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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 NQ30L4) is a 30-space, 400 A panelboard interior with an aluminum bus, measuring 45 in Ht by 10 7/16 in Wd. It accepts QHB, QOB, and QOB-VH circuit breakers, supporting flexible branch-circuit configurations in commercial and industrial power distribution.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Square D NQ30L4 panelboard interior used for?

The Square D NQ30L4 is a 30-space, 400 A main lug convertible panel interior used for branch-circuit power distribution in commercial and industrial electrical systems. It accepts QHB, QOB, and QOB-VH circuit breakers, supporting flexible configurations in lighting, motor, and equipment feeds.

What are the specifications of the Square D NQ30L4 panelboard interior?

The Square D NQ30L4 panelboard interior has 30 spaces, 400 A ampacity, an aluminum bus, and measures 45 in Ht by 10 7/16 in Wd. It accepts QHB, QOB, and QOB-VH circuit breakers. The bus material is aluminum, and the circuit breaker series is QOB-VH.

Where to buy Square D NQ30L4 panelboard interior worldwide?

3G Electric supplies the Square D NQ30L4 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 30-space, 400 A aluminum-bus interior.

How to select the right Square D panelboard interior for a 400 A system?

To select a Square D panelboard interior for a 400 A system, verify the bus material (aluminum or copper), number of spaces (e.g., 30), and compatible circuit breaker series (QHB, QOB, QOB-VH). The NQ30L4 fits these requirements. Always confirm voltage rating and enclosure type with your electrical 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
Panelboard Interior: 42 Spaces, 225 A Amps, Aluminum, QHB/QOB/QOB-VH, 33 in Ht, 10 7/16 in Wd (MPN NQ442L2)
SQUARE D
Panelboard Interior: 42 Spaces, 225 A Amps, Aluminum, QHB/QOB/QOB-VH, 33 in Ht, 10 7/16 in Wd (MPN NQ442L2)
Panelboard Enclosure: 50 in Lg, 1, 42 Spaces, 400 A Amps, Steel, 20 in Wd, Surface Mounting (MPN MH50)
SQUARE D
Panelboard Enclosure: 50 in Lg, 1, 42 Spaces, 400 A Amps, Steel, 20 in Wd, Surface Mounting (MPN MH50)
SQUARE D Miniature Circuit Breaker: 30 A, 120/240V AC, Single Phase, 10kA at 120/240V AC, 2 Poles (MPN QOB230HID)
SQUARE D
SQUARE D Miniature Circuit Breaker: 30 A, 120/240V AC, Single Phase, 10kA at 120/240V AC, 2 Poles (MPN QOB230HID)
SQUARE D Miniature Circuit Breaker: 70 A, 120/240V AC, Three Phase, 22kA at 120/240V AC, 3 Poles (MPN QOB370VH)
SQUARE D
SQUARE D Miniature Circuit Breaker: 70 A, 120/240V AC, Three Phase, 22kA at 120/240V AC, 3 Poles (MPN QOB370VH)
SQUARE D Miniature Circuit Breaker: 80 A, 120/240V AC, Three Phase, 22kA at 120/240V AC, 3 Poles (MPN QOB380VH)
SQUARE D
SQUARE D Miniature Circuit Breaker: 80 A, 120/240V AC, Three Phase, 22kA at 120/240V AC, 3 Poles (MPN QOB380VH)
SQUARE D Miniature Circuit Breaker: 30 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 2 Poles (MPN QOB230VH)
SQUARE D
SQUARE D Miniature Circuit Breaker: 30 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 2 Poles (MPN QOB230VH)

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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)
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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)
Panelboard Interior: 42 Spaces, 600 A Amps, Copper, QHB/QOB/QOB-VH, 45 in Ht, 10 7/16 in Wd (MPN NQ442L6C)
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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)
Panelboard Interior: 18 Spaces, 100 A Amps, Aluminum, QHB/QOB/QOB-VH, 21 in Ht, 10 7/16 in Wd (MPN NQ18L1)
SQUARE D
Panelboard Interior: 18 Spaces, 100 A Amps, Aluminum, QHB/QOB/QOB-VH, 21 in Ht, 10 7/16 in Wd (MPN NQ18L1)
Panelboard Interior: 18 Spaces, 100 A Amps, Aluminum, QHB/QOB/QOB-VH, 27 in Ht, 10 7/16 in Wd (MPN NQ418L1)
SQUARE D
Panelboard Interior: 18 Spaces, 100 A Amps, Aluminum, QHB/QOB/QOB-VH, 27 in Ht, 10 7/16 in Wd (MPN NQ418L1)
Panelboard Interior: 42 Spaces, 225 A Amps, Copper, QHB/QOB/QOB-VH, 33 in Ht, 10 7/16 in Wd (MPN NQ442L2C)
SQUARE D
Panelboard Interior: 42 Spaces, 225 A Amps, Copper, QHB/QOB/QOB-VH, 33 in Ht, 10 7/16 in Wd (MPN NQ442L2C)
Panelboard Interior: 30 Spaces, 225 A Amps, Copper, QHB/QOB/QOB-VH, 27 in Ht, 10 7/16 in Wd (MPN NQ30L2C)
SQUARE D
Panelboard Interior: 30 Spaces, 225 A Amps, Copper, QHB/QOB/QOB-VH, 27 in Ht, 10 7/16 in Wd (MPN NQ30L2C)
Panelboard Interior: 42 Spaces, 225 A Amps, Aluminum, QHB/QOB/QOB-VH, 33 in Ht, 10 7/16 in Wd (MPN NQ42L2)
SQUARE D
Panelboard Interior: 42 Spaces, 225 A Amps, Aluminum, QHB/QOB/QOB-VH, 33 in Ht, 10 7/16 in Wd (MPN NQ42L2)
Panelboard Interior: 30 Spaces, 600 A Amps, Copper, QHB/QOB/QOB-VH, 45 in Ht, 10 7/16 in Wd (MPN NQ430L6C)
SQUARE D
Panelboard Interior: 30 Spaces, 600 A Amps, Copper, QHB/QOB/QOB-VH, 45 in Ht, 10 7/16 in Wd (MPN NQ430L6C)