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SQUARE D Molded Case Circuit Breaker: 300 A Amps, 42kA at 120/240V AC, Instantaneous - 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 120/240V AC, Instantaneous

The Square D LA36300 is a 300 A, 3-pole molded case circuit breaker for I-Line panelboards, rated 42kA at 120/240V AC with an instantaneous trip and lug terminals. It features ABC phase connection and is part of the…

SKU 3G-OTH-609784

Brand
SQUARE D
Item
Molded Case Circuit Breaker: 300 A Amps, 42kA at 120/240V AC, Instantaneous
Category
Square D Molded Case Circuit Breakers for I-Line Panelboards
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Technical Specifications

SQUARE D
Manufacturer Part Number
LA36300
Series
LA
Type
42kA at 120/240V AC, Instantaneous, Lug, ABC, LA
Poles
3
Max. AIR Rating
42kA at 120/240V AC
Phase Connection
ABC
Instantaneous Trip
Instantaneous
Terminal Connection
Lug
View Full Spec Sheet

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

Product Description

The Square D LA36300 is a 300 A, 3-pole molded case circuit breaker for I-Line panelboards, rated 42kA at 120/240V AC with an instantaneous trip and lug terminals. It features ABC phase connection and is part of the LA series, providing overcurrent protection for industrial electrical distribution.

Frequently Asked Questions

What is the Square D LA36300 molded case circuit breaker used for?

The Square D LA36300 provides overcurrent protection in industrial electrical distribution systems. It is designed for I-Line panelboards, handling up to 300 A with a 42kA interrupting rating at 120/240V AC, making it suitable for commercial and manufacturing facilities.

What are the specifications of the Square D LA36300?

The Square D LA36300 is a 3-pole molded case circuit breaker rated 300 A with a maximum AIR rating of 42kA at 120/240V AC. It features instantaneous trip, lug terminals, and ABC phase connection. It is part of the LA series and has MPN LA36300.

Where to buy the Square D LA36300 worldwide?

3G Electric supplies the Square D LA36300 worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this circuit breaker to your facility. Contact us for availability and lead time.

How to install the Square D LA36300 in an I-Line panelboard?

To install the Square D LA36300, ensure the panelboard is de-energized. Align the breaker's mounting tabs with the I-Line bus bars and press firmly until it snaps into place. Torque lug terminals to manufacturer specifications. Always follow NEC guidelines and consult a qualified electrician.

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.

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Molded Case Circuit Breaker: 175 A Amps, 42kA at 120/240V AC, Adj, Lug, ABC, 3 Poles, 600V AC, LA (MPN LA36175). Key specifications — Terminal Connection: Lug; Phase Connection: ABC; Max. AIR Rating: 42kA at 120/240V AC; Instantaneous Trip: Adjustable; Series: LA.
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Molded Case Circuit Breaker: 200 A Amps, 25kA at 240V AC, Fixed, Lug, BC, 2 Poles, 240V AC, QD (MPN QDA222004). Key specifications — Terminal Connection: Lug; Phase Connection: BC; Max. AIR Rating: 25kA at 240V AC; Instantaneous Trip: Fixed; Series: QD.
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