We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
RFQ CartGet a QuoteSign inSign up
SQUARE D Molded Case Circuit Breaker: 350 A Amps, 25kA at 120/240V AC, Adj, Lug - LA-, LH-, Q4-Frame Square D Molded Case Circuit Breakers
SQUARE DLA-, LH-, Q4-Frame Square D Molded Case Circuit Breakers

SQUARE D Molded Case Circuit Breaker: 350 A Amps, 25kA at 120/240V AC, Adj, Lug

The Square D Q4L3350 is a Q4-Frame molded case circuit breaker rated for 350 A at 240V AC, with a maximum AIR rating of 25kA at 120/240V AC. It features 3 poles, an adjustable instantaneous trip, lug terminals, and…

SKU 3G-OTH-609477

Brand
SQUARE D
Item
Molded Case Circuit Breaker: 350 A Amps, 25kA at 120/240V AC, Adj, Lug
Category
LA-, LH-, Q4-Frame Square D Molded Case Circuit Breakers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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
Q4L3350
Series
Q4
Type
25kA at 120/240V AC, Adj, Lug, ABC, Q4
AC
240V
Poles
3
Max. AIR Rating
25kA at 120/240V AC
Phase Connection
ABC
Instantaneous Trip
Adjustable
Terminal Connection
Lug
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 Q4L3350 is a Q4-Frame molded case circuit breaker rated for 350 A at 240V AC, with a maximum AIR rating of 25kA at 120/240V AC. It features 3 poles, an adjustable instantaneous trip, lug terminals, and ABC phase connection. 3G Electric interprets your demand for this OEM part and delivers it with specialist support across 14 industrial departments.

Frequently Asked Questions

What is the Square D Q4L3350 molded case circuit breaker used for?

The Square D Q4L3350 is a Q4-Frame molded case circuit breaker rated for 350 A at 240V AC. It protects electrical circuits from overloads and short circuits in industrial power distribution, motor control centers, and panelboards. 3G Electric supplies this OEM part with specialist support across 14 industrial departments.

What are the specifications of the Square D Q4L3350?

The Square D Q4L3350 is a 3-pole, 350 A molded case circuit breaker rated at 240V AC with a maximum AIR rating of 25kA at 120/240V AC. It features an adjustable instantaneous trip, lug terminals, and ABC phase connection. The series is Q4 and the manufacturer part number is Q4L3350.

Where to buy the Square D Q4L3350 worldwide?

3G Electric supplies the Square D Q4L3350 molded case circuit breaker to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we interpret your demand and deliver genuine Square D equipment with specialist support across 14 industrial departments.

How to select the Square D Q4L3350 for an application?

To select the Square D Q4L3350, verify your system voltage is 240V AC and the continuous load does not exceed 350 A. Ensure the available fault current is below 25kA at 120/240V AC. The adjustable instantaneous trip allows coordination with downstream devices. 3G Electric can help confirm fitment for your specific panelboard or switchgear.

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 la-, lh-, q4-frame square d molded case circuit breakers. 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: 350 A Amps, 25kA at 120/240V AC, Adj, Lug, Non-Applicable, 2 Poles, Q4 (MPN Q4L2350). Key specifications — Terminal Connection: Lug; Phase Connection: Non-Applicable; Max. AIR Rating: 25kA at 120/240V AC; Instantaneous Trip: Adjustable; Series: Q4.
SQUARE D
Molded Case Circuit Breaker: 350 A Amps, 25kA at 120/240V AC, Adj, Lug, Non-Applicable, 2 Poles, Q4 (MPN Q4L2350). Key specifications — Terminal Connection: Lug; Phase Connection: Non-Applicable; Max. AIR Rating: 25kA at 120/240V AC; Instantaneous Trip: Adjustable; Series: Q4.
Molded Case Circuit Breaker: 400 A Amps, 42kA at 240V AC, Adj, Lug, Non-Applicable, 2 Poles, 600V AC (MPN LAL26400). Key specifications — Terminal Connection: Lug; Phase Connection: Non-Applicable; Max. AIR Rating: 42kA at 240V AC; Instantaneous Trip: Adjustable; Series: LAL.
SQUARE D
Molded Case Circuit Breaker: 400 A Amps, 42kA at 240V AC, Adj, Lug, Non-Applicable, 2 Poles, 600V AC (MPN LAL26400). Key specifications — Terminal Connection: Lug; Phase Connection: Non-Applicable; Max. AIR Rating: 42kA at 240V AC; Instantaneous Trip: Adjustable; Series: LAL.
Molded Case Circuit Breaker: 250 A Amps, 25kA at 120/240V AC, Adj, Lug, ABC, 3 Poles, 240V AC, Q4 (MPN Q4L3250). Key specifications — Terminal Connection: Lug; Phase Connection: ABC; Max. AIR Rating: 25kA at 120/240V AC; Instantaneous Trip: Adjustable; Series: Q4.
SQUARE D
Molded Case Circuit Breaker: 250 A Amps, 25kA at 120/240V AC, Adj, Lug, ABC, 3 Poles, 240V AC, Q4 (MPN Q4L3250). Key specifications — Terminal Connection: Lug; Phase Connection: ABC; Max. AIR Rating: 25kA at 120/240V AC; Instantaneous Trip: Adjustable; Series: Q4.
Molded Case Circuit Breaker: 400 A Amps, 25kA at 120/240V AC, Adj, Lug, ABC, 3 Poles, 240V AC, Q4 (MPN Q4L3400). Key specifications — Terminal Connection: Lug; Phase Connection: ABC; Max. AIR Rating: 25kA at 120/240V AC; Instantaneous Trip: Adjustable; Series: Q4.
SQUARE D
Molded Case Circuit Breaker: 400 A Amps, 25kA at 120/240V AC, Adj, Lug, ABC, 3 Poles, 240V AC, Q4 (MPN Q4L3400). Key specifications — Terminal Connection: Lug; Phase Connection: ABC; Max. AIR Rating: 25kA at 120/240V AC; Instantaneous Trip: Adjustable; Series: Q4.
Molded Case Circuit Breaker: 250 A Amps, 42kA at 240V AC, Adj, Lug, ABC, 3 Poles, 600V AC, LAL (MPN LAL36250). Key specifications — Terminal Connection: Lug; Phase Connection: ABC; Max. AIR Rating: 42kA at 240V AC; Instantaneous Trip: Adjustable; Series: LAL.
SQUARE D
Molded Case Circuit Breaker: 250 A Amps, 42kA at 240V AC, Adj, Lug, ABC, 3 Poles, 600V AC, LAL (MPN LAL36250). Key specifications — Terminal Connection: Lug; Phase Connection: ABC; Max. AIR Rating: 42kA at 240V AC; Instantaneous Trip: Adjustable; Series: LAL.
Molded Case Circuit Breaker: 300 A Amps, 42kA at 240V AC, Adj, Lug, ABC, 3 Poles, 600V AC, LAL (MPN LAL36300). Key specifications — Terminal Connection: Lug; Phase Connection: ABC; Max. AIR Rating: 42kA at 240V AC; Instantaneous Trip: Adjustable; Series: LAL.
SQUARE D
Molded Case Circuit Breaker: 300 A Amps, 42kA at 240V AC, Adj, Lug, ABC, 3 Poles, 600V AC, LAL (MPN LAL36300). Key specifications — Terminal Connection: Lug; Phase Connection: ABC; Max. AIR Rating: 42kA at 240V AC; Instantaneous Trip: Adjustable; Series: LAL.
Molded Case Circuit Breaker: 400 A Amps, 42kA at 240V AC, Adj, Lug, ABC, 3 Poles, 600V AC, LAL (MPN LAL36400). Key specifications — Terminal Connection: Lug; Phase Connection: ABC; Max. AIR Rating: 42kA at 240V AC; Instantaneous Trip: Adjustable; Series: LAL.
SQUARE D
Molded Case Circuit Breaker: 400 A Amps, 42kA at 240V AC, Adj, Lug, ABC, 3 Poles, 600V AC, LAL (MPN LAL36400). Key specifications — Terminal Connection: Lug; Phase Connection: ABC; Max. AIR Rating: 42kA at 240V AC; Instantaneous Trip: Adjustable; Series: LAL.
Molded Case Circuit Breaker: 250 A Amps, 25kA at 120/240V AC, Adj, Lug, Non-Applicable, 2 Poles, Q4 (MPN Q4L2250). Key specifications — Terminal Connection: Lug; Phase Connection: Non-Applicable; Max. AIR Rating: 25kA at 120/240V AC; Instantaneous Trip: Adjustable; Series: Q4.
SQUARE D
Molded Case Circuit Breaker: 250 A Amps, 25kA at 120/240V AC, Adj, Lug, Non-Applicable, 2 Poles, Q4 (MPN Q4L2250). Key specifications — Terminal Connection: Lug; Phase Connection: Non-Applicable; Max. AIR Rating: 25kA at 120/240V AC; Instantaneous Trip: Adjustable; Series: Q4.