Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

SQUARE D Molded Case Circuit Breaker: 300 A Amps, 42kA at 240V AC, Adj, Lug, BC - Square D Molded Case Circuit Breakers for I-Line Panelboards
SQUARE DSquare D Molded Case Circuit Breakers for I-Line Panelboards

SQUARE D Molded Case Circuit Breaker: 300 A Amps, 42kA at 240V AC, Adj, Lug, BC

The Square D LA Series Molded Case Circuit Breaker (MPN LA26300BC) is a 300 A unit with a 42kA AIR rating at 240V AC, adjustable instantaneous trip, and a 1,500 A low amp trip setting. It features lug terminals and…

SKU 3G-OTH-609766

Brand
SQUARE D
Item
Molded Case Circuit Breaker: 300 A Amps, 42kA at 240V AC, Adj, Lug, BC
Category
Square D Molded Case Circuit Breakers for I-Line Panelboards
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

SQUARE D
Manufacturer Part Number
LA26300BC
Series
LA
Type
42kA at 240V AC, Adj, Lug, BC
Max. AIR Rating
42kA at 240V AC
Phase Connection
BC
Instantaneous Trip
Adjustable
Terminal Connection
Lug
Low Amp Trip Setting
1,500 A
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The Square D LA Series Molded Case Circuit Breaker (MPN LA26300BC) is a 300 A unit with a 42kA AIR rating at 240V AC, adjustable instantaneous trip, and a 1,500 A low amp trip setting. It features lug terminals and BC phase connection, designed for I-Line panelboards.

Frequently Asked Questions

Is the SQUARE D Molded Case Circuit Breaker: 300 A Amps, 42kA at 240V AC, Adj, Lug, BC available from 3G Electric?

Yes — 3G Electric supplies genuine SQUARE D products, available to order with worldwide shipping. Contact us for current lead time.

How do I get a quote for the SQUARE D Molded Case Circuit Breaker: 300 A Amps, 42kA at 240V AC, Adj, Lug, BC?

Click "Request a Quote" on this page or add the product to your RFQ cart. Our engineers will respond within 24 hours with pricing, lead times, and technical recommendations.

Does 3G Electric provide technical support for square d molded case circuit breakers for i-line panelboards?

Yes, our team of experienced engineers provides full technical support including product selection, installation guidance, commissioning, and after-sales service for all square d molded case circuit breakers for i-line panelboards we distribute.

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 molded case circuit breakers for i-line panelboards. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from SQUARE D

View all SQUARE D parts
Molded Case Circuit Breaker: 225 A Amps, 25kA at 240V AC, Fixed, Lug, AB, 2 Poles, 240V AC, QD (MPN QDA222251). Key specifications — Terminal Connection: Lug; Phase Connection: AB; Max. AIR Rating: 25kA at 240V AC; Instantaneous Trip: Fixed; Series: QD.
SQUARE D
Molded Case Circuit Breaker: 225 A Amps, 25kA at 240V AC, Fixed, Lug, AB, 2 Poles, 240V AC, QD (MPN QDA222251). Key specifications — Terminal Connection: Lug; Phase Connection: AB; Max. AIR Rating: 25kA at 240V AC; Instantaneous Trip: Fixed; Series: QD.
Molded Case Circuit Breaker: 225 A Amps, 25kA at 240V AC, Fixed, Lug, AC, 2 Poles, 240V AC, QD (MPN QDA222252). Key specifications — Terminal Connection: Lug; Phase Connection: AC; Max. AIR Rating: 25kA at 240V AC; Instantaneous Trip: Fixed; Series: QD.
SQUARE D
Molded Case Circuit Breaker: 225 A Amps, 25kA at 240V AC, Fixed, Lug, AC, 2 Poles, 240V AC, QD (MPN QDA222252). Key specifications — Terminal Connection: Lug; Phase Connection: AC; Max. AIR Rating: 25kA at 240V AC; Instantaneous Trip: Fixed; Series: QD.