SQUARE DSquare D Panelboard Trim Clamps

SQUARE D Hub: 200 A Amps

The Square D Hub (MPN B300) is a 200 A amp hub designed for use with Square D QO and Homeline NEMA 3R Load Centers. This panelboard trim clamp ensures a secure connection for compatible load centers.

SKU 3G-OTH-620833

Brand

SQUARE D

Item

Hub: 200 A Amps

Technical Specifications

SQUARE D

Manufacturer Part Number

B300 

Type

For Use With Square D QO and Homeline NEMA 3R Load Centers 

View Full Spec Sheet

Technical Documents

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SQUARE D Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Square D Hub (MPN B300) is a 200 A amp hub designed for use with Square D QO and Homeline NEMA 3R Load Centers. This panelboard trim clamp ensures a secure connection for compatible load centers.

Frequently Asked Questions

What is the Square D B300 hub used for?

The Square D B300 hub is a 200 A amp hub designed for use with Square D QO and Homeline NEMA 3R load centers. It provides a secure connection point for service entrance conductors, ensuring reliable electrical distribution in residential and light commercial applications.

What are the specifications of the Square D B300 hub?

The Square D B300 hub is rated for 200 A amps and is compatible with Square D QO and Homeline NEMA 3R load centers. It functions as a hub-type panelboard trim clamp. The manufacturer part number is B300, and the SKU is 2CP40.

Where to buy the Square D B300 hub worldwide?

3G Electric supplies the Square D B300 hub worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to order this hub for Square D QO and Homeline NEMA 3R load centers.

How to install the Square D B300 hub on a load center?

To install the Square D B300 hub, first ensure the load center is de-energized. Remove the knockout in the enclosure top, insert the hub from outside, and secure it with the provided locknut. Route service entrance conductors through the hub and tighten the clamping mechanism per local codes.

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 panelboard trim clamps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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