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SQUARE D Panelboard Main Breaker Kit: 225 Amps, For Use With Square D PowerPact H - Square D Main Breaker Kits
SQUARE DSquare D Main Breaker Kits

SQUARE D Panelboard Main Breaker Kit: 225 Amps, For Use With Square D PowerPact H

The Square D Panelboard Main Breaker Kit (MPN NQMB2HJ) is a 225 Amp accessory for use with Square D PowerPact H, J and Q-Frame Panelboards. It features a 150A/H frame size, is compatible with the HGL circuit breaker…

SKU 3G-OTH-722187

Brand
SQUARE D
Item
Panelboard Main Breaker Kit: 225 Amps, For Use With Square D PowerPact H
Category
Square D Main Breaker Kits
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Technical Specifications

SQUARE D
Manufacturer Part Number
NQMB2HJ
Type
For Use With Square D PowerPact H, J and Q-Frame Panelboards
Amps
225
Includes
(13) Tapping Screws
Frame Size
150A/H
For Use With
Square D PowerPact H, J and Q-Frame Panelboards
Accessory Type
Panelboard Main Breaker Kit
Compatible Circuit Breaker Series
HGL
View Full Spec Sheet

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

Product Description

The Square D Panelboard Main Breaker Kit (MPN NQMB2HJ) is a 225 Amp accessory for use with Square D PowerPact H, J and Q-Frame Panelboards. It features a 150A/H frame size, is compatible with the HGL circuit breaker series, and includes (13) tapping screws.

Frequently Asked Questions

What is the Square D NQMB2HJ panelboard main breaker kit used for?

The Square D NQMB2HJ panelboard main breaker kit is used to install a 225 Amp main breaker in Square D PowerPact H, J and Q-Frame panelboards. It provides overcurrent protection and a single disconnect point for the panelboard, simplifying electrical distribution in industrial and commercial facilities.

What are the specifications of the Square D NQMB2HJ main breaker kit?

The Square D NQMB2HJ main breaker kit is rated for 225 Amps with a 150A/H frame size. It is compatible with the HGL circuit breaker series and includes (13) tapping screws. It is designed for use with Square D PowerPact H, J and Q-Frame panelboards.

Where to buy the Square D NQMB2HJ main breaker kit worldwide?

3G Electric supplies the Square D NQMB2HJ main breaker kit worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this genuine Square D accessory to your facility. Contact us for a quote and delivery timeline to your location.

How to install the Square D NQMB2HJ main breaker kit?

Installation of the Square D NQMB2HJ main breaker kit should follow the manufacturer's instructions and local electrical codes. Typically, it involves mounting the kit in the panelboard, connecting the line and load conductors, and securing it with the included (13) tapping screws. Always de-energize the panel before installation.

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 main breaker kits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Panelboard Main Breaker Kit: 400 Amps, For Use With Square D L-Frame Panelboards (MPN N400M). Key specifications — Frame Size: 400A/L; Phase: Three; Compatible Circuit Breaker Series: LHL; For Use With: Square D L-Frame Panelboards; Accessory Type: Panelboard Main Breaker Kit; Amps: 400; Includes: (1) Screw Set.
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Panelboard Main Breaker Kit: 250 Amps, For Use With Square D J-Frame Panelboards (MPN N250MJ). Key specifications — Frame Size: 225A/J; Phase: Three; Compatible Circuit Breaker Series: JRL; For Use With: Square D J-Frame Panelboards; Accessory Type: Panelboard Main Breaker Kit; Amps: 250; Includes: (2) Rail Extension.
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