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SQUARE D Panelboard Enclosure: 44 in Lg, 1, 54 Spaces, 225 A Amps, Steel, 4HGX1/4HGX2/4HGX3/4HGX4 - Enclosure Boxes for Square D NQ Series Panels
SQUARE DEnclosure Boxes for Square D NQ Series Panels

SQUARE D Panelboard Enclosure: 44 in Lg, 1, 54 Spaces, 225 A Amps, Steel, 4HGX1/4HGX2/4HGX3/4HGX4

The Square D MH44 Panelboard Enclosure is a 44-inch-long, surface-mount steel enclosure for NQ Series panels, rated 225 A with 54 spaces and NEMA 1. It accepts compatible three-phase interior 3TZ03 or single-phase…

SKU 3G-OTH-722312

Brand
SQUARE D
Item
Panelboard Enclosure: 44 in Lg, 1, 54 Spaces, 225 A Amps, Steel, 4HGX1/4HGX2/4HGX3/4HGX4
Category
Enclosure Boxes for Square D NQ Series Panels
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Technical Specifications

SQUARE D
Manufacturer Part Number
MH44
Type
1, Steel, 4HGX1/4HGX2/4HGX3/4HGX4
Material
Steel
Wd
20 in
Amps
225 A
Spaces
54
NEMA Rating
1
Mounting Style
Surface
Compatible Three Phase Interior
3TZ03
Compatible Single Phase Interior
4HGX1
View Full Spec Sheet

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

Product Description

The Square D MH44 Panelboard Enclosure is a 44-inch-long, surface-mount steel enclosure for NQ Series panels, rated 225 A with 54 spaces and NEMA 1. It accepts compatible three-phase interior 3TZ03 or single-phase interior 4HGX1, and is 20 inches wide.

Frequently Asked Questions

What is the Square D MH44 panelboard enclosure used for?

The Square D MH44 panelboard enclosure houses electrical distribution components in commercial and industrial settings. It is a surface-mount steel enclosure for NQ Series panels, rated 225 A with 54 spaces, and accepts compatible single-phase or three-phase interiors.

What are the specifications of the Square D MH44 panelboard enclosure?

The Square D MH44 is a 44-inch-long, 20-inch-wide steel enclosure with NEMA 1 rating, 225 A capacity, and 54 spaces. It mounts on the surface and is compatible with single-phase interior 4HGX1 or three-phase interior 3TZ03.

Where to buy the Square D MH44 panelboard enclosure worldwide?

3G Electric supplies the Square D MH44 panelboard enclosure worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this NQ Series enclosure.

How to install the Square D MH44 panelboard enclosure?

Mount the Square D MH44 enclosure on a flat surface using appropriate hardware. Ensure the area is clean and dry. Install the compatible interior (single-phase 4HGX1 or three-phase 3TZ03) per Square D instructions, then connect incoming and outgoing circuits.

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 enclosure boxes for square d nq series panels. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Panelboard Enclosure: 56 in Lg, 1, 42 Spaces, 600 A Amps, Steel, 22P074/3TZ08/3TZ09, 20 in Wd (MPN MH56). Key specifications — Mounting Style: Surface; Material: Steel; Compatible Single Phase Interior: NQOD54L225CU; NEMA Rating: 1; Compatible Three Phase Interior: 3TZ09.
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Panelboard Enclosure: 68 in Lg, 1, 42 Spaces, 400 A Amps, Steel, 1D917, 22P073/22P074/22P075 (MPN MH68). Key specifications — Mounting Style: Surface; Material: Steel; Compatible Single Phase Interior: 1D917; NEMA Rating: 1; Compatible Three Phase Interior: 22P075.
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