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Square D LAL26350 Molded Case Circuit Breaker
- 350A
- 2 Pole
- Unit Mount
Square D
LAL26350
Molded Case Circuit Breaker
Brand
Square D
SKU
LAL26350
Quantity
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Square D LAL26350 - 350A 2 Pole Molded Case Circuit Breaker
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Description
Built to handle higher current demands, this 350A two-pole MCCB utilizes proven thermal-magnetic technology with adjustable magnetic trip capabilities. It provides essential long-time and instantaneous (LI) protection for heavy commercial and industrial electrical systems. The breaker mounts into Square D industrial enclosures, switchboards, and motor control centers using standard unit-mount hardware. Capable of interrupting 22kA at 600VAC, it is typically replaced by the newer LGL26350 model.Specifications
| Brand | Square D |
|---|---|
| Part Number | LAL26350 |
| Series | LAL |
| Amperage | 350A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | LAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Industrial Enclosures, Switchboards, Motor Control Centers |
| Wire Gauge | (1) 1 AWG-600 kcmil (Al/Cu) or (2) 1 AWG-250 kcmil (Al/Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 1 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Lugs (Line and Load) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
6 answersWhat equipment is compatible with the Square D LAL26350?
This unit-mount L-frame breaker is designed for installation in Square D industrial enclosures, switchboards, and motor control centers.
What are the wire size requirements for the LAL26350 lugs?
The standard lugs accept either a single 1 AWG to 600 kcmil wire or dual 1 AWG to 250 kcmil wires per phase. They are compatible with both aluminum and copper conductors.
How does the adjustable magnetic trip work on this breaker?
The LAL26350 features a fixed thermal element for long-time overload protection and an adjustable magnetic element. The magnetic dial allows electricians to set the instantaneous short-circuit trip threshold to coordinate with downstream devices or accommodate high inrush currents.
Can the LAL26350 be used in DC voltage applications?
Yes, in addition to its AC ratings, this breaker is rated for 250VDC systems with an interrupting capacity of 10 kA.
What is the modern replacement for the legacy LAL26350?
The LAL series is a legacy molded case circuit breaker. When upgrading panels, it is typically replaced by the modern Square D PowerPacT L-frame series, though the LAL26350 is still widely sourced for direct replacements in existing switchboards.
Does the LAL26350 feature a push-to-trip mechanism?
Yes, Square D L-frame breakers include a push-to-trip button on the faceplate. This allows electricians to manually trip the breaker to verify the mechanical operation of the trip mechanism without exposing themselves to live parts.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 7 reviews.
Total 5 star reviews: 7 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
7 reviews
- MBmike b.Verified BuyerReviewingSquare D LAL36350 - 350A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/15/26LAL36350MB
OLINE ORDERING WAS EASY AND I RECEIVED THE BREAKER QUICKLY
- GCGlenn C.Verified BuyerReviewingSquare D LAL36400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/27/26Breaker
I like the great price. Great service
- MIMarietta I.Verified BuyerReviewingSquare D LAL36400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/27/26Great service
Received the breakers in time. My account mgr Mike is awesome.
- TBTerry B.Verified BuyerReviewingSquare D LAL36400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/5/26RECERTIFIED BREAKER
Breaker was received in good condition and seems to work correctly
- LBLISA B.Verified BuyerReviewingSquare D LAL36400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/28/25good [product
Expeditious delivery, great product and amazing customer service.